* [PATCH v2 0/2] rotary-encoder: Add new interruption handler
From: Ezequiel Garcia @ 2013-10-04 12:53 UTC (permalink / raw)
To: linux-kernel, linux-input; +Cc: Ezequiel Garcia, Daniel Mack, Dmitry Torokhov
Some rotary-encoder devices (such as those with detents) are capable
of producing a stable event on each step. This simple patch adds support
for this case, by implementing a new interruption handler.
The handler needs only detect the direction of the turn and generate
an event according to this detection.
We encode the previous and the current state, and then use the sum of them
to decide on the direction of the turn, according to the following simple
table:
Previous state + currrent state | Movement
==========================================
0b1101 | clockwise
0b0100 | ..
0b0010 | ..
0b1011 | ..
==========================================
0b1110 | counter-clockwise
0b0111 | ..
0b0001 | ..
0b1000 | ..
(The other sumed values are considered illegal)
This calculation is based on some previous work found at this blog:
http://bildr.org/2012/08/rotary-encoder-arduino/
The result is a seemingly very robust behavior, with a truly simple
implementation, that produces an event on each turn of the device.
Thanks!
Ezequiel Garcia (2):
Input: rotary-encoder: Add 'stepped' irq handler
input: rotary-encoder: Add 'on-each-step' to binding documentation
.../devicetree/bindings/input/rotary-encoder.txt | 1 +
drivers/input/misc/rotary_encoder.c | 41 ++++++++++++++++++++++
include/linux/rotary_encoder.h | 1 +
3 files changed, 43 insertions(+)
--
1.8.1.5
^ permalink raw reply
* Re: [PATCH] input: i8042 - add PNP modaliases
From: Tom Gundersen @ 2013-10-04 12:26 UTC (permalink / raw)
To: linux-input@vger.kernel.org
Cc: LKML, Tom Gundersen, Matthew Garrett, Dmitry Torokhov
In-Reply-To: <1378286856-6384-1-git-send-email-teg@jklm.no>
On Wed, Sep 4, 2013 at 11:27 AM, Tom Gundersen <teg@jklm.no> wrote:
> This allows the module to be autoloaded in the common case.
>
> In order to work on non-PnP systems the module should be compiled in or loaded
> unconditionally at boot (c.f. modules-load.d(5)), as before.
>
> Cc: Matthew Garrett <mjg59@srcf.ucam.org>
> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Signed-off-by: Tom Gundersen <teg@jklm.no>
> --
Hi Dmitry,
Any comments on this? Any chance of having this (and the two patches
dropping EXPERT=y requirements) included for 3.13 (or even 3.12 if it
is not too late for this kind of stuff)? Let me know if I should
resend the three patches.
Cheers,
Tom
> This appears to work for me (though I don't have the real hardware to test), I get the following aliases:
> alias: acpi*:CPQA0D7:*
> alias: pnp:dCPQA0D7*
> alias: acpi*:PNP0345:*
> alias: pnp:dPNP0345*
> alias: acpi*:PNP0344:*
> alias: pnp:dPNP0344*
> alias: acpi*:PNP0343:*
> alias: pnp:dPNP0343*
> alias: acpi*:PNP0320:*
> alias: pnp:dPNP0320*
> alias: acpi*:PNP030B:*
> alias: pnp:dPNP030b*
> alias: acpi*:PNP030A:*
> alias: pnp:dPNP030a*
> alias: acpi*:PNP0309:*
> alias: pnp:dPNP0309*
> alias: acpi*:PNP0306:*
> alias: pnp:dPNP0306*
> alias: acpi*:PNP0305:*
> alias: pnp:dPNP0305*
> alias: acpi*:PNP0304:*
> alias: pnp:dPNP0304*
> alias: acpi*:PNP0303:*
> alias: pnp:dPNP0303*
> alias: acpi*:PNP0302:*
> alias: pnp:dPNP0302*
> alias: acpi*:PNP0301:*
> alias: pnp:dPNP0301*
> alias: acpi*:PNP0300:*
> alias: pnp:dPNP0300*
>
> drivers/input/serio/i8042-x86ia64io.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
> index 5f306f7..0ec9abb 100644
> --- a/drivers/input/serio/i8042-x86ia64io.h
> +++ b/drivers/input/serio/i8042-x86ia64io.h
> @@ -765,6 +765,7 @@ static struct pnp_device_id pnp_kbd_devids[] = {
> { .id = "CPQA0D7", .driver_data = 0 },
> { .id = "", },
> };
> +MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
>
> static struct pnp_driver i8042_pnp_kbd_driver = {
> .name = "i8042 kbd",
> @@ -786,6 +787,7 @@ static struct pnp_device_id pnp_aux_devids[] = {
> { .id = "SYN0801", .driver_data = 0 },
> { .id = "", },
> };
> +MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
>
> static struct pnp_driver i8042_pnp_aux_driver = {
> .name = "i8042 aux",
> --
> 1.8.4
>
^ permalink raw reply
* Re: [PATCH] input - input.h: Add a new switch event
From: Chris Bagwell @ 2013-10-04 2:48 UTC (permalink / raw)
To: Ping Cheng
Cc: linux-input@vger.kernel.org, Dmitry Torokhov, Henrik Rydberg,
Benjamin Tissoires, linux-kernel@vger.kernel.org, Ping Cheng
In-Reply-To: <1380839467-27264-1-git-send-email-pingc@wacom.com>
On Thu, Oct 3, 2013 at 5:31 PM, Ping Cheng <pinglinux@gmail.com> wrote:
> One of Wacom's pen and touch capable models added a switch for
> users to turn on/off touch events. We need to report the state of
> this switch to userland. But, there is no existing switch event
> defined for this purpose. Luckily enough, there is a room for a
> new switch event.
It is a switch so hard to argue against adding it this way... but I
also want to point out existing feature to consider.
Touchpads on several laptops have either a single touchpad toggle
button or a touchpad switch that serve same basic purpose. Most of
these switches are hooked up as keys and controlled by platform/x86
driver or udev.
Most platform/x86 drivers map these "keys" to KEY_TOUCHPAD_TOGGLE,
KEY_TOUCHPAD_ON, and KEY_TOUCHPAD_OFF. Since those don't make it to
X, most udev keymaps instead use f21, f22, and f23 for same purpose.
As long as this is a touch+tablet that looks like a touchpad then
using those keys will cause gnome-settings-daemon to give a nice OSD
touchpad status when switch is moved and will also enable/disable the
touchpad using "Device Enabled" X property.
On the down side, I think these keys are treated as system wide
disable of all touchpads. Having a Switch reported against the device
its controlling (as apposed to above which is reported over different
input then touchpad) would allow user land an easy way to know to only
disable the single device.
Chris
>
> Signed-off-by: Ping Cheng <pingc@wacom.com>
> ---
> include/uapi/linux/input.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
> index d08abf9..d4097b0 100644
> --- a/include/uapi/linux/input.h
> +++ b/include/uapi/linux/input.h
> @@ -855,6 +855,7 @@ struct input_keymap_entry {
> #define SW_FRONT_PROXIMITY 0x0b /* set = front proximity sensor active */
> #define SW_ROTATE_LOCK 0x0c /* set = rotate locked/disabled */
> #define SW_LINEIN_INSERT 0x0d /* set = inserted */
> +#define SW_TOUCH_ENABLED 0x0e /* set = touch switch turned on (touch events off) */
> #define SW_MAX 0x0f
> #define SW_CNT (SW_MAX+1)
>
> --
> 1.8.1.2
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-input" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply
* Re: [PATCH] input - input.h: Add a new switch event
From: Peter Hutterer @ 2013-10-03 23:33 UTC (permalink / raw)
To: Ping Cheng
Cc: linux-input, dmitry.torokhov, rydberg, benjamin.tissoires,
linux-kernel, Ping Cheng
In-Reply-To: <1380839467-27264-1-git-send-email-pingc@wacom.com>
On Thu, Oct 03, 2013 at 03:31:07PM -0700, Ping Cheng wrote:
> One of Wacom's pen and touch capable models added a switch for
> users to turn on/off touch events. We need to report the state of
> this switch to userland. But, there is no existing switch event
> defined for this purpose. Luckily enough, there is a room for a
> new switch event.
>
> Signed-off-by: Ping Cheng <pingc@wacom.com>
> ---
> include/uapi/linux/input.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
> index d08abf9..d4097b0 100644
> --- a/include/uapi/linux/input.h
> +++ b/include/uapi/linux/input.h
> @@ -855,6 +855,7 @@ struct input_keymap_entry {
> #define SW_FRONT_PROXIMITY 0x0b /* set = front proximity sensor active */
> #define SW_ROTATE_LOCK 0x0c /* set = rotate locked/disabled */
> #define SW_LINEIN_INSERT 0x0d /* set = inserted */
> +#define SW_TOUCH_ENABLED 0x0e /* set = touch switch turned on (touch events off) */
> #define SW_MAX 0x0f
> #define SW_CNT (SW_MAX+1)
>
> --
> 1.8.1.2
Acked-by: Peter Hutterer <peter.hutterer@who-t.net> for the principle,
though I think SW_TOUCH would be enough, given that the switch already
communicates on/off.
Cheers,
Peter
^ permalink raw reply
* Re: [RFC] Input: introduce ABS_MAX2/CNT2 and friends
From: Peter Hutterer @ 2013-10-03 23:32 UTC (permalink / raw)
To: David Herrmann
Cc: linux-input, Dmitry Torokhov, Henrik Rydberg, Benjamin Tissoires,
Jiri Kosina, linux-kernel
In-Reply-To: <1380751836-10829-1-git-send-email-dh.herrmann@gmail.com>
On Thu, Oct 03, 2013 at 12:10:36AM +0200, David Herrmann wrote:
> As we painfully noticed during the 3.12 merge-window our
> EVIOCGABS/EVIOCSABS API is limited to ABS_MAX<=0x3f. We tried several
> hacks to work around it but if we ever decide to increase ABS_MAX, the
> EVIOCSABS ioctl ABI might overflow into the next byte causing horrible
> misinterpretations in the kernel that we cannot catch.
>
> Therefore, we decided to go with ABS_MAX2/CNT2 and introduce two new
> ioctls to get/set abs-params. They no longer encode the ABS code in the
> ioctl number and thus allow up to 4 billion ABS codes.
>
> Unfortunately, the uinput API also hard-coded the ABS_CNT value in its
> ABI. To avoid any hacks in uinput, we simply introduce a new
> uinput_user_dev2 to replace the old one. The new API allows growing
> ABS_CNT2 values without any API changes.
>
> Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
> ---
> Hi
>
> This is only compile-tested but I wanted to get a first revision out to let
> people know what we're working on. Unfortunately, the ABS API has this horribly
> low ABS_MAX limit and we couldn't figure out a way to increase it while keeping
> ABI compatibility.
>
> Any feedback and review is welcome. And if anyone spots ABI breakage by this
> patch, please let me know. If nothing comes up I will patch libevdev to use the
> new API, write some extensive test-cases and push this forward.
>
> As a sidenote: I didn't modify joydev to use the new values. Fortunately, the
> joydev API would allow switching to ABS_CNT2 without breaking API, but it would
> limit the new ABS_CNT2 to 16k. This is quite high but nothing compared to the
> 2^32 that we can theoretically support now. If you think 16k ought to be enough
> (probably?) I can adjust the joydev API, too.
> All other kernel users were converted to the new values. Nothing left behind..
just a comment from skimming the patch:
if you need a new uinput abi anyway, can we add the resolution here? it's
sorely needed for some tests. see also the patch Benjamin sent a while ago
("input/uinput: support abs resolution", July 15 2013)
Cheers,
Peter
> drivers/hid/hid-debug.c | 2 +-
> drivers/hid/hid-input.c | 2 +-
> drivers/input/evdev.c | 63 ++++++++++++++-
> drivers/input/input.c | 14 ++--
> drivers/input/keyboard/goldfish_events.c | 6 +-
> drivers/input/keyboard/hil_kbd.c | 2 +-
> drivers/input/misc/uinput.c | 128 ++++++++++++++++++++++---------
> include/linux/hid.h | 2 +-
> include/linux/input.h | 6 +-
> include/linux/mod_devicetable.h | 2 +-
> include/uapi/linux/input.h | 31 +++++++-
> include/uapi/linux/uinput.h | 13 ++++
> 12 files changed, 213 insertions(+), 58 deletions(-)
>
> diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
> index 8453214..d32fa30 100644
> --- a/drivers/hid/hid-debug.c
> +++ b/drivers/hid/hid-debug.c
> @@ -862,7 +862,7 @@ static const char *relatives[REL_MAX + 1] = {
> [REL_WHEEL] = "Wheel", [REL_MISC] = "Misc",
> };
>
> -static const char *absolutes[ABS_CNT] = {
> +static const char *absolutes[ABS_CNT2] = {
> [ABS_X] = "X", [ABS_Y] = "Y",
> [ABS_Z] = "Z", [ABS_RX] = "Rx",
> [ABS_RY] = "Ry", [ABS_RZ] = "Rz",
> diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
> index 8741d95..3e879bf 100644
> --- a/drivers/hid/hid-input.c
> +++ b/drivers/hid/hid-input.c
> @@ -1305,7 +1305,7 @@ static bool hidinput_has_been_populated(struct hid_input *hidinput)
> for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
> r |= hidinput->input->relbit[i];
>
> - for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
> + for (i = 0; i < BITS_TO_LONGS(ABS_CNT2); i++)
> r |= hidinput->input->absbit[i];
>
> for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
> diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
> index b6ded17..c76b87e 100644
> --- a/drivers/input/evdev.c
> +++ b/drivers/input/evdev.c
> @@ -635,7 +635,7 @@ static int handle_eviocgbit(struct input_dev *dev,
> case 0: bits = dev->evbit; len = EV_MAX; break;
> case EV_KEY: bits = dev->keybit; len = KEY_MAX; break;
> case EV_REL: bits = dev->relbit; len = REL_MAX; break;
> - case EV_ABS: bits = dev->absbit; len = ABS_MAX; break;
> + case EV_ABS: bits = dev->absbit; len = ABS_MAX2; break;
> case EV_MSC: bits = dev->mscbit; len = MSC_MAX; break;
> case EV_LED: bits = dev->ledbit; len = LED_MAX; break;
> case EV_SND: bits = dev->sndbit; len = SND_MAX; break;
> @@ -663,6 +663,61 @@ static int handle_eviocgbit(struct input_dev *dev,
> }
> #undef OLD_KEY_MAX
>
> +static int evdev_handle_get_abs2(struct input_dev *dev, void __user *p)
> +{
> + u32 code;
> + struct input_absinfo2 __user *pinfo = p;
> + struct input_absinfo abs;
> +
> + if (!dev->absinfo)
> + return -EINVAL;
> +
> + if (copy_from_user(&code, &pinfo->code, sizeof(code)))
> + return -EFAULT;
> +
> + if (code >= ABS_CNT2)
> + return -EINVAL;
> +
> + /*
> + * Take event lock to ensure that we are not
> + * copying data while EVIOCSABS2 changes it.
> + * Might be inconsistent, otherwise.
> + */
> + spin_lock_irq(&dev->event_lock);
> + abs = dev->absinfo[code];
> + spin_unlock_irq(&dev->event_lock);
> +
> + if (copy_to_user(&pinfo->info, &abs, sizeof(abs)))
> + return -EFAULT;
> +
> + return 0;
> +}
> +
> +static int evdev_handle_set_abs2(struct input_dev *dev, void __user *p)
> +{
> + struct input_absinfo2 info;
> +
> + if (!dev->absinfo)
> + return -EINVAL;
> +
> + if (copy_from_user(&info, p, sizeof(info)))
> + return -EFAULT;
> +
> + if (info.code == ABS_MT_SLOT || info.code >= ABS_CNT2)
> + return -EINVAL;
> +
> + /*
> + * Take event lock to ensure that we are not
> + * changing device parameters in the middle
> + * of event.
> + */
> + spin_lock_irq(&dev->event_lock);
> + dev->absinfo[info.code] = info.info;
> + spin_unlock_irq(&dev->event_lock);
> +
> + return 0;
> +}
> +
> static int evdev_handle_get_keycode(struct input_dev *dev, void __user *p)
> {
> struct input_keymap_entry ke = {
> @@ -890,6 +945,12 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
> client->clkid = i;
> return 0;
>
> + case EVIOCGABS2:
> + return evdev_handle_get_abs2(dev, p);
> +
> + case EVIOCSABS2:
> + return evdev_handle_set_abs2(dev, p);
> +
> case EVIOCGKEYCODE:
> return evdev_handle_get_keycode(dev, p);
>
> diff --git a/drivers/input/input.c b/drivers/input/input.c
> index c044699..bc88f17 100644
> --- a/drivers/input/input.c
> +++ b/drivers/input/input.c
> @@ -305,7 +305,7 @@ static int input_get_disposition(struct input_dev *dev,
> break;
>
> case EV_ABS:
> - if (is_event_supported(code, dev->absbit, ABS_MAX))
> + if (is_event_supported(code, dev->absbit, ABS_MAX2))
> disposition = input_handle_abs_event(dev, code, &value);
>
> break;
> @@ -474,7 +474,7 @@ EXPORT_SYMBOL(input_inject_event);
> void input_alloc_absinfo(struct input_dev *dev)
> {
> if (!dev->absinfo)
> - dev->absinfo = kcalloc(ABS_CNT, sizeof(struct input_absinfo),
> + dev->absinfo = kcalloc(ABS_CNT2, sizeof(struct input_absinfo),
> GFP_KERNEL);
>
> WARN(!dev->absinfo, "%s(): kcalloc() failed?\n", __func__);
> @@ -954,7 +954,7 @@ static const struct input_device_id *input_match_device(struct input_handler *ha
> if (!bitmap_subset(id->relbit, dev->relbit, REL_MAX))
> continue;
>
> - if (!bitmap_subset(id->absbit, dev->absbit, ABS_MAX))
> + if (!bitmap_subset(id->absbit, dev->absbit, ABS_MAX2))
> continue;
>
> if (!bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX))
> @@ -1147,7 +1147,7 @@ static int input_devices_seq_show(struct seq_file *seq, void *v)
> if (test_bit(EV_REL, dev->evbit))
> input_seq_print_bitmap(seq, "REL", dev->relbit, REL_MAX);
> if (test_bit(EV_ABS, dev->evbit))
> - input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX);
> + input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX2);
> if (test_bit(EV_MSC, dev->evbit))
> input_seq_print_bitmap(seq, "MSC", dev->mscbit, MSC_MAX);
> if (test_bit(EV_LED, dev->evbit))
> @@ -1333,7 +1333,7 @@ static int input_print_modalias(char *buf, int size, struct input_dev *id,
> len += input_print_modalias_bits(buf + len, size - len,
> 'r', id->relbit, 0, REL_MAX);
> len += input_print_modalias_bits(buf + len, size - len,
> - 'a', id->absbit, 0, ABS_MAX);
> + 'a', id->absbit, 0, ABS_MAX2);
> len += input_print_modalias_bits(buf + len, size - len,
> 'm', id->mscbit, 0, MSC_MAX);
> len += input_print_modalias_bits(buf + len, size - len,
> @@ -1592,7 +1592,7 @@ static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env)
> if (test_bit(EV_REL, dev->evbit))
> INPUT_ADD_HOTPLUG_BM_VAR("REL=", dev->relbit, REL_MAX);
> if (test_bit(EV_ABS, dev->evbit))
> - INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX);
> + INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX2);
> if (test_bit(EV_MSC, dev->evbit))
> INPUT_ADD_HOTPLUG_BM_VAR("MSC=", dev->mscbit, MSC_MAX);
> if (test_bit(EV_LED, dev->evbit))
> @@ -1924,7 +1924,7 @@ static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
>
> events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */
>
> - for (i = 0; i < ABS_CNT; i++) {
> + for (i = 0; i < ABS_CNT2; i++) {
> if (test_bit(i, dev->absbit)) {
> if (input_is_mt_axis(i))
> events += mt_slots;
> diff --git a/drivers/input/keyboard/goldfish_events.c b/drivers/input/keyboard/goldfish_events.c
> index 9f60a2e..9999cea 100644
> --- a/drivers/input/keyboard/goldfish_events.c
> +++ b/drivers/input/keyboard/goldfish_events.c
> @@ -90,8 +90,8 @@ static void events_import_abs_params(struct event_dev *edev)
> __raw_writel(PAGE_ABSDATA, addr + REG_SET_PAGE);
>
> count = __raw_readl(addr + REG_LEN) / sizeof(val);
> - if (count > ABS_MAX)
> - count = ABS_MAX;
> + if (count > ABS_MAX2)
> + count = ABS_MAX2;
>
> for (i = 0; i < count; i++) {
> if (!test_bit(i, input_dev->absbit))
> @@ -158,7 +158,7 @@ static int events_probe(struct platform_device *pdev)
> events_import_bits(edev, input_dev->evbit, EV_SYN, EV_MAX);
> events_import_bits(edev, input_dev->keybit, EV_KEY, KEY_MAX);
> events_import_bits(edev, input_dev->relbit, EV_REL, REL_MAX);
> - events_import_bits(edev, input_dev->absbit, EV_ABS, ABS_MAX);
> + events_import_bits(edev, input_dev->absbit, EV_ABS, ABS_MAX2);
> events_import_bits(edev, input_dev->mscbit, EV_MSC, MSC_MAX);
> events_import_bits(edev, input_dev->ledbit, EV_LED, LED_MAX);
> events_import_bits(edev, input_dev->sndbit, EV_SND, SND_MAX);
> diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
> index 589e3c2..4e4e010 100644
> --- a/drivers/input/keyboard/hil_kbd.c
> +++ b/drivers/input/keyboard/hil_kbd.c
> @@ -387,7 +387,7 @@ static void hil_dev_pointer_setup(struct hil_dev *ptr)
> 0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);
>
> #ifdef TABLET_AUTOADJUST
> - for (i = 0; i < ABS_MAX; i++) {
> + for (i = 0; i < ABS_MAX2; i++) {
> int diff = input_abs_get_max(input_dev, ABS_X + i) / 10;
> input_abs_set_min(input_dev, ABS_X + i,
> input_abs_get_min(input_dev, ABS_X + i) + diff);
> diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
> index a0a4bba..72029d6 100644
> --- a/drivers/input/misc/uinput.c
> +++ b/drivers/input/misc/uinput.c
> @@ -311,7 +311,7 @@ static int uinput_validate_absbits(struct input_dev *dev)
> unsigned int cnt;
> int retval = 0;
>
> - for (cnt = 0; cnt < ABS_CNT; cnt++) {
> + for (cnt = 0; cnt < ABS_CNT2; cnt++) {
> int min, max;
> if (!test_bit(cnt, dev->absbit))
> continue;
> @@ -358,14 +358,15 @@ static int uinput_allocate_device(struct uinput_device *udev)
> }
>
> static int uinput_setup_device(struct uinput_device *udev,
> - const char __user *buffer, size_t count)
> + struct uinput_user_dev2 *user_dev2,
> + size_t abscnt)
> {
> - struct uinput_user_dev *user_dev;
> struct input_dev *dev;
> int i;
> int retval;
>
> - if (count != sizeof(struct uinput_user_dev))
> + /* Ensure name is filled in */
> + if (!user_dev2->name[0])
> return -EINVAL;
>
> if (!udev->dev) {
> @@ -375,37 +376,24 @@ static int uinput_setup_device(struct uinput_device *udev,
> }
>
> dev = udev->dev;
> -
> - user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
> - if (IS_ERR(user_dev))
> - return PTR_ERR(user_dev);
> -
> - udev->ff_effects_max = user_dev->ff_effects_max;
> -
> - /* Ensure name is filled in */
> - if (!user_dev->name[0]) {
> - retval = -EINVAL;
> - goto exit;
> - }
> + udev->ff_effects_max = user_dev2->ff_effects_max;
>
> kfree(dev->name);
> - dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
> + dev->name = kstrndup(user_dev2->name, UINPUT_MAX_NAME_SIZE,
> GFP_KERNEL);
> - if (!dev->name) {
> - retval = -ENOMEM;
> - goto exit;
> - }
> + if (!dev->name)
> + return -ENOMEM;
>
> - dev->id.bustype = user_dev->id.bustype;
> - dev->id.vendor = user_dev->id.vendor;
> - dev->id.product = user_dev->id.product;
> - dev->id.version = user_dev->id.version;
> + dev->id.bustype = user_dev2->id.bustype;
> + dev->id.vendor = user_dev2->id.vendor;
> + dev->id.product = user_dev2->id.product;
> + dev->id.version = user_dev2->id.version;
>
> - for (i = 0; i < ABS_CNT; i++) {
> - input_abs_set_max(dev, i, user_dev->absmax[i]);
> - input_abs_set_min(dev, i, user_dev->absmin[i]);
> - input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
> - input_abs_set_flat(dev, i, user_dev->absflat[i]);
> + for (i = 0; i < abscnt; i++) {
> + input_abs_set_max(dev, i, user_dev2->abs[i].max);
> + input_abs_set_min(dev, i, user_dev2->abs[i].min);
> + input_abs_set_fuzz(dev, i, user_dev2->abs[i].fuzz);
> + input_abs_set_flat(dev, i, user_dev2->abs[i].flat);
> }
>
> /* check if absmin/absmax/absfuzz/absflat are filled as
> @@ -413,7 +401,7 @@ static int uinput_setup_device(struct uinput_device *udev,
> if (test_bit(EV_ABS, dev->evbit)) {
> retval = uinput_validate_absbits(dev);
> if (retval < 0)
> - goto exit;
> + return retval;
> if (test_bit(ABS_MT_SLOT, dev->absbit)) {
> int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
> input_mt_init_slots(dev, nslot, 0);
> @@ -423,11 +411,72 @@ static int uinput_setup_device(struct uinput_device *udev,
> }
>
> udev->state = UIST_SETUP_COMPLETE;
> - retval = count;
> + return 0;
> +}
> +
> +static int uinput_setup_device1(struct uinput_device *udev,
> + const char __user *buffer, size_t count)
> +{
> + struct uinput_user_dev *user_dev;
> + struct uinput_user_dev2 *user_dev2;
> + int i;
> + int retval;
> +
> + if (count != sizeof(struct uinput_user_dev))
> + return -EINVAL;
> +
> + user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
> + if (IS_ERR(user_dev))
> + return PTR_ERR(user_dev);
> +
> + user_dev2 = kmalloc(sizeof(*user_dev2), GFP_KERNEL);
> + if (!user_dev2) {
> + kfree(user_dev);
> + return -ENOMEM;
> + }
> +
> + memcpy(user_dev2->name, user_dev->name, UINPUT_MAX_NAME_SIZE);
> + memcpy(&user_dev2->id, &user_dev->id, sizeof(struct input_id));
> + user_dev2->ff_effects_max = user_dev->ff_effects_max;
> +
> + for (i = 0; i < ABS_CNT; ++i) {
> + user_dev2->abs[i].max = user_dev->absmax[i];
> + user_dev2->abs[i].min = user_dev->absmin[i];
> + user_dev2->abs[i].fuzz = user_dev->absfuzz[i];
> + user_dev2->abs[i].flat = user_dev->absflat[i];
> + }
> +
> + retval = uinput_setup_device(udev, user_dev2, ABS_CNT);
>
> - exit:
> kfree(user_dev);
> - return retval;
> + kfree(user_dev2);
> +
> + return retval ? retval : count;
> +}
> +
> +static int uinput_setup_device2(struct uinput_device *udev,
> + const char __user *buffer, size_t count)
> +{
> + struct uinput_user_dev2 *user_dev2;
> + int retval;
> + size_t off, abscnt;
> +
> + /* The first revision of "uinput_user_dev2" is bigger than
> + * "uinput_user_dev" and growing. Disallow any smaller payloads. */
> + if (count <= sizeof(struct uinput_user_dev))
> + return -EINVAL;
> +
> + user_dev2 = memdup_user(buffer, count);
> + if (IS_ERR(user_dev2))
> + return PTR_ERR(user_dev2);
> +
> + off = offsetof(struct uinput_user_dev2, abs);
> + abscnt = (count - off) / sizeof(struct uinput_user_absinfo);
> + retval = uinput_setup_device(udev, user_dev2, abscnt);
> +
> + kfree(user_dev2);
> +
> + return retval ? retval : count;
> }
>
> static ssize_t uinput_inject_event(struct uinput_device *udev,
> @@ -459,9 +508,12 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer,
> if (retval)
> return retval;
>
> - retval = udev->state == UIST_CREATED ?
> - uinput_inject_event(udev, buffer, count) :
> - uinput_setup_device(udev, buffer, count);
> + if (udev->state == UIST_CREATED)
> + retval = uinput_inject_event(udev, buffer, count);
> + else if (count <= sizeof(struct uinput_user_dev))
> + retval = uinput_setup_device1(udev, buffer, count);
> + else
> + retval = uinput_setup_device2(udev, buffer, count);
>
> mutex_unlock(&udev->mutex);
>
> @@ -702,7 +754,7 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
> break;
>
> case UI_SET_ABSBIT:
> - retval = uinput_set_bit(arg, absbit, ABS_MAX);
> + retval = uinput_set_bit(arg, absbit, ABS_MAX2);
> break;
>
> case UI_SET_MSCBIT:
> diff --git a/include/linux/hid.h b/include/linux/hid.h
> index 31b9d29..c21d8bb 100644
> --- a/include/linux/hid.h
> +++ b/include/linux/hid.h
> @@ -828,7 +828,7 @@ static inline void hid_map_usage(struct hid_input *hidinput,
> switch (type) {
> case EV_ABS:
> *bit = input->absbit;
> - *max = ABS_MAX;
> + *max = ABS_MAX2;
> break;
> case EV_REL:
> *bit = input->relbit;
> diff --git a/include/linux/input.h b/include/linux/input.h
> index 82ce323..c6add6f 100644
> --- a/include/linux/input.h
> +++ b/include/linux/input.h
> @@ -129,7 +129,7 @@ struct input_dev {
> unsigned long evbit[BITS_TO_LONGS(EV_CNT)];
> unsigned long keybit[BITS_TO_LONGS(KEY_CNT)];
> unsigned long relbit[BITS_TO_LONGS(REL_CNT)];
> - unsigned long absbit[BITS_TO_LONGS(ABS_CNT)];
> + unsigned long absbit[BITS_TO_LONGS(ABS_CNT2)];
> unsigned long mscbit[BITS_TO_LONGS(MSC_CNT)];
> unsigned long ledbit[BITS_TO_LONGS(LED_CNT)];
> unsigned long sndbit[BITS_TO_LONGS(SND_CNT)];
> @@ -210,8 +210,8 @@ struct input_dev {
> #error "REL_MAX and INPUT_DEVICE_ID_REL_MAX do not match"
> #endif
>
> -#if ABS_MAX != INPUT_DEVICE_ID_ABS_MAX
> -#error "ABS_MAX and INPUT_DEVICE_ID_ABS_MAX do not match"
> +#if ABS_MAX2 != INPUT_DEVICE_ID_ABS_MAX
> +#error "ABS_MAX2 and INPUT_DEVICE_ID_ABS_MAX do not match"
> #endif
>
> #if MSC_MAX != INPUT_DEVICE_ID_MSC_MAX
>lt diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
> index 45e9214..329aa30 100644
> --- a/include/linux/mod_devicetable.h
> +++ b/include/linux/mod_devicetable.h
> @@ -277,7 +277,7 @@ struct pcmcia_device_id {
> #define INPUT_DEVICE_ID_KEY_MIN_INTERESTING 0x71
> #define INPUT_DEVICE_ID_KEY_MAX 0x2ff
> #define INPUT_DEVICE_ID_REL_MAX 0x0f
> -#define INPUT_DEVICE_ID_ABS_MAX 0x3f
> +#define INPUT_DEVICE_ID_ABS_MAX 0x4f
> #define INPUT_DEVICE_ID_MSC_MAX 0x07
> #define INPUT_DEVICE_ID_LED_MAX 0x0f
> #define INPUT_DEVICE_ID_SND_MAX 0x07
> diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
> index a372627..4a6082a 100644
> --- a/include/uapi/linux/input.h
> +++ b/include/uapi/linux/input.h
> @@ -74,6 +74,21 @@ struct input_absinfo {
> };
>
> /**
> + * struct input_absinfo2 - used by EVIOC[G/S]ABS2 ioctls
> + * @code: ABS code to query
> + * @info: absinfo structure to get/set abs parameters for @code
> + *
> + * This structure is used by the new EVIOC[G/S]ABS2 ioctls which
> + * do the same as the old EVIOC[G/S]ABS ioctls but avoid encoding
> + * the ABS code in the ioctl number. This allows a much wider
> + * range of ABS codes.
> + */
> +struct input_absinfo2 {
> + __u32 code;
> + struct input_absinfo info;
> +};
> +
> +/**
> * struct input_keymap_entry - used by EVIOCGKEYCODE/EVIOCSKEYCODE ioctls
> * @scancode: scancode represented in machine-endian form.
> * @len: length of the scancode that resides in @scancode buffer.
> @@ -153,6 +168,8 @@ struct input_keymap_entry {
>
> #define EVIOCGRAB _IOW('E', 0x90, int) /* Grab/Release device */
> #define EVIOCREVOKE _IOW('E', 0x91, int) /* Revoke device access */
> +#define EVIOCGABS2 _IOR('E', 0x92, struct input_absinfo2) /* get abs value/limits */
> +#define EVIOCSABS2 _IOW('E', 0x93, struct input_absinfo2) /* set abs value/limits */
>
> #define EVIOCSCLOCKID _IOW('E', 0xa0, int) /* Set clockid to be used for timestamps */
>
> @@ -832,11 +849,23 @@ struct input_keymap_entry {
> #define ABS_MT_TOOL_X 0x3c /* Center X tool position */
> #define ABS_MT_TOOL_Y 0x3d /* Center Y tool position */
>
> -
> +/*
> + * ABS_MAX/CNT is limited to a maximum of 0x3f due to the design of EVIOCGABS
> + * and EVIOCSABS ioctls. Other kernel APIs like uinput also hardcoded it. Do
> + * not modify this value and instead use the extended ABS_MAX2/CNT2 API.
> + */
> #define ABS_MAX 0x3f
> #define ABS_CNT (ABS_MAX+1)
>
> /*
> + * Due to API restrictions the legacy evdev API only supports ABS values up to
> + * ABS_MAX/CNT. Use the extended *ABS2 ioctls to operate on any ABS values in
> + * between ABS_MAX and ABS_MAX2.
> + */
> +#define ABS_MAX2 0x4f
> +#define ABS_CNT2 (ABS_MAX2+1)
> +
> +/*
> * Switch events
> */
>
> diff --git a/include/uapi/linux/uinput.h b/include/uapi/linux/uinput.h
> index fe46431..124e20c 100644
> --- a/include/uapi/linux/uinput.h
> +++ b/include/uapi/linux/uinput.h
> @@ -134,4 +134,17 @@ struct uinput_user_dev {
> __s32 absfuzz[ABS_CNT];
> __s32 absflat[ABS_CNT];
> };
> +
> +struct uinput_user_dev2 {
> + char name[UINPUT_MAX_NAME_SIZE];
> + struct input_id id;
> + __u32 ff_effects_max;
> + struct uinput_user_absinfo {
> + __s32 max;
> + __s32 min;
> + __s32 fuzz;
> + __s32 flat;
> + } abs[ABS_CNT2];
> +};
> +
> #endif /* _UAPI__UINPUT_H_ */
> --
> 1.8.4
>
^ permalink raw reply
* [PATCH] input - input.h: Add a new switch event
From: Ping Cheng @ 2013-10-03 22:31 UTC (permalink / raw)
To: linux-input
Cc: dmitry.torokhov, rydberg, benjamin.tissoires, linux-kernel,
Ping Cheng
One of Wacom's pen and touch capable models added a switch for
users to turn on/off touch events. We need to report the state of
this switch to userland. But, there is no existing switch event
defined for this purpose. Luckily enough, there is a room for a
new switch event.
Signed-off-by: Ping Cheng <pingc@wacom.com>
---
include/uapi/linux/input.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index d08abf9..d4097b0 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -855,6 +855,7 @@ struct input_keymap_entry {
#define SW_FRONT_PROXIMITY 0x0b /* set = front proximity sensor active */
#define SW_ROTATE_LOCK 0x0c /* set = rotate locked/disabled */
#define SW_LINEIN_INSERT 0x0d /* set = inserted */
+#define SW_TOUCH_ENABLED 0x0e /* set = touch switch turned on (touch events off) */
#define SW_MAX 0x0f
#define SW_CNT (SW_MAX+1)
--
1.8.1.2
^ permalink raw reply related
* Re: [PATCH 2/2] Input: wacom - add support for three new Intuos devices
From: Dmitry Torokhov @ 2013-10-03 21:54 UTC (permalink / raw)
To: Ping Cheng; +Cc: linux-input, chris, Ping Cheng
In-Reply-To: <1380833590-25267-1-git-send-email-pingc@wacom.com>
On Thursday, October 03, 2013 01:53:10 PM Ping Cheng wrote:
> This series of models added a hardware switch to turn touch
> data on/off. To report the state of the switch, SW_TOUCH_ENABLED
> is added in include/uapi/linux/input.h.
Hmm, should we just postpone creating of input device until touch is enabled
instead?
--
Dmitry
^ permalink raw reply
* [PATCH 2/2] Input: wacom - add support for three new Intuos devices
From: Ping Cheng @ 2013-10-03 20:53 UTC (permalink / raw)
To: linux-input; +Cc: dmitry.torokhov, chris, Ping Cheng
This series of models added a hardware switch to turn touch
data on/off. To report the state of the switch, SW_TOUCH_ENABLED
is added in include/uapi/linux/input.h.
The driver is also updated to process wireless devices that do
not support touch interface.
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
---
drivers/input/tablet/wacom_sys.c | 26 +++++++++++-
drivers/input/tablet/wacom_wac.c | 86 ++++++++++++++++++++++++++++++++--------
drivers/input/tablet/wacom_wac.h | 7 ++++
include/uapi/linux/input.h | 1 +
4 files changed, 102 insertions(+), 18 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 7bdb5e9..3a74fa4 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -1190,12 +1190,15 @@ static void wacom_wireless_work(struct work_struct *work)
wacom_wac1->features.device_type = BTN_TOOL_PEN;
snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen",
wacom_wac1->features.name);
+ wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max;
+ wacom_wac1->shared->type = wacom_wac1->features.type;
error = wacom_register_input(wacom1);
if (error)
goto fail;
/* Touch interface */
- if (wacom_wac1->features.touch_max) {
+ if (wacom_wac1->features.touch_max ||
+ wacom_wac1->features.type == INTUOS_HT) {
wacom_wac2->features =
*((struct wacom_features *)id->driver_info);
wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
@@ -1210,11 +1213,25 @@ static void wacom_wireless_work(struct work_struct *work)
error = wacom_register_input(wacom2);
if (error)
goto fail;
+
+ if (wacom_wac1->features.type == INTUOS_HT &&
+ wacom_wac1->features.touch_max)
+ wacom_wac->shared->touch_input = wacom_wac2->input;
}
error = wacom_initialize_battery(wacom);
if (error)
goto fail;
+ else if ((wacom_wac->shared->type == INTUOS_HT) && wacom_wac->shared->touch_max) {
+ /* report SW_TOUCH_ENABLED initial state for wireless interface */
+ unsigned char *data = wacom_wac->data;
+
+ if (data[0] == WACOM_REPORT_WL_MODE) {
+ input_report_switch(wacom_wac->shared->touch_input,
+ SW_TOUCH_ENABLED, data[5] & 0x40);
+ input_sync(wacom_wac->shared->touch_input);
+ }
+ }
}
return;
@@ -1318,7 +1335,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
* HID descriptor. If this is the touch interface (wMaxPacketSize
* of WACOM_PKGLEN_BBTOUCH3), override the table values.
*/
- if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
+ if (features->type >= INTUOS5S && features->type <= INTUOS_HT) {
if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) {
features->device_type = BTN_TOOL_FINGER;
features->pktlen = WACOM_PKGLEN_BBTOUCH3;
@@ -1390,6 +1407,11 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
}
}
+ if (wacom_wac->features.type == INTUOS_HT && wacom_wac->features.touch_max) {
+ if (wacom_wac->features.device_type == BTN_TOOL_FINGER)
+ wacom_wac->shared->touch_input = wacom_wac->input;
+ }
+
return 0;
fail5: wacom_destroy_leds(wacom);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 9c8eded..658905c 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1176,10 +1176,17 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data)
{
struct input_dev *input = wacom->input;
+ struct wacom_features *features = &wacom->features;
- input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
+ if (features->type == INTUOS_HT) {
+ input_report_key(input, BTN_LEFT, (data[1] & 0x02) != 0);
+ input_report_key(input, BTN_BACK, (data[1] & 0x08) != 0);
+ } else {
+
+ input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
+ input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
+ }
input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0);
- input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
input_report_key(input, BTN_RIGHT, (data[1] & 0x01) != 0);
}
@@ -1213,13 +1220,23 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom)
static int wacom_bpt_pen(struct wacom_wac *wacom)
{
+ struct wacom_features *features = &wacom->features;
struct input_dev *input = wacom->input;
unsigned char *data = wacom->data;
int prox = 0, x = 0, y = 0, p = 0, d = 0, pen = 0, btn1 = 0, btn2 = 0;
- if (data[0] != 0x02)
+ if (data[0] != WACOM_REPORT_PENABLED && data[0] != WACOM_REPORT_USB_MODE)
return 0;
+ if (data[0] == WACOM_REPORT_USB_MODE) {
+ if ((features->type == INTUOS_HT) && features->touch_max) {
+ input_report_switch(wacom->shared->touch_input,
+ SW_TOUCH_ENABLED, data[8] & 0x40);
+ input_sync(wacom->shared->touch_input);
+ }
+ return 0;
+ }
+
prox = (data[1] & 0x20) == 0x20;
/*
@@ -1297,13 +1314,20 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
unsigned char *data = wacom->data;
int connected;
- if (len != WACOM_PKGLEN_WIRELESS || data[0] != 0x80)
+ if (len != WACOM_PKGLEN_WIRELESS || data[0] != WACOM_REPORT_WL_MODE)
return 0;
connected = data[1] & 0x01;
if (connected) {
int pid, battery;
+ if ((wacom->shared->type == INTUOS_HT) &&
+ wacom->shared->touch_max) {
+ input_report_switch(wacom->shared->touch_input,
+ SW_TOUCH_ENABLED, data[5] & 0x40);
+ input_sync(wacom->shared->touch_input);
+ }
+
pid = get_unaligned_be16(&data[6]);
battery = data[5] & 0x3f;
if (wacom->pid != pid) {
@@ -1391,6 +1415,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
break;
case BAMBOO_PT:
+ case INTUOS_HT:
sync = wacom_bpt_irq(wacom_wac, len);
break;
@@ -1459,7 +1484,7 @@ void wacom_setup_device_quirks(struct wacom_features *features)
/* these device have multiple inputs */
if (features->type >= WIRELESS ||
- (features->type >= INTUOS5S && features->type <= INTUOSPL) ||
+ (features->type >= INTUOS5S && features->type <= INTUOS_HT) ||
(features->oVid && features->oPid))
features->quirks |= WACOM_QUIRK_MULTI_INPUT;
@@ -1531,7 +1556,8 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
struct wacom_features *features = &wacom_wac->features;
int i;
- input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
+ BIT_MASK(EV_SW);
__set_bit(BTN_TOUCH, input_dev->keybit);
__set_bit(ABS_MISC, input_dev->absbit);
@@ -1771,33 +1797,47 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
break;
+ case INTUOS_HT:
+ if (features->touch_max &&
+ (features->device_type == BTN_TOOL_FINGER))
+ __set_bit(SW_TOUCH_ENABLED, input_dev->swbit);
+ /* fall through */
+
case BAMBOO_PT:
__clear_bit(ABS_MISC, input_dev->absbit);
- __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
-
if (features->device_type == BTN_TOOL_FINGER) {
- unsigned int flags = INPUT_MT_POINTER;
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_FORWARD, input_dev->keybit);
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
- if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
- input_set_abs_params(input_dev,
+ if (features->touch_max) {
+ /* touch interface */
+ unsigned int flags = INPUT_MT_POINTER;
+
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+ if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
+ input_set_abs_params(input_dev,
ABS_MT_TOUCH_MAJOR,
0, features->x_max, 0, 0);
- input_set_abs_params(input_dev,
+ input_set_abs_params(input_dev,
ABS_MT_TOUCH_MINOR,
0, features->y_max, 0, 0);
+ } else {
+ __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
+ __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
+ flags = 0;
+ }
+ input_mt_init_slots(input_dev, features->touch_max, flags);
} else {
- __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
- __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
- flags = 0;
+ /* buttons/keys only interface */
+ __clear_bit(ABS_X, input_dev->absbit);
+ __clear_bit(ABS_Y, input_dev->absbit);
}
- input_mt_init_slots(input_dev, features->touch_max, flags);
} else if (features->device_type == BTN_TOOL_PEN) {
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
@@ -2194,6 +2234,17 @@ static const struct wacom_features wacom_features_0x300 =
static const struct wacom_features wacom_features_0x301 =
{ "Wacom Bamboo One M", WACOM_PKGLEN_BBPEN, 21648, 13530, 1023,
31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x302 =
+ { "Wacom Intuos PT S", WACOM_PKGLEN_BBPEN, 15200, 9500, 1023,
+ 31, INTUOS_HT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 16 };
+static const struct wacom_features wacom_features_0x303 =
+ { "Wacom Intuos PT M", WACOM_PKGLEN_BBPEN, 21600, 13500, 1023,
+ 31, INTUOS_HT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
+ .touch_max = 16 };
+static const struct wacom_features wacom_features_0x30E =
+ { "Wacom Intuos S", WACOM_PKGLEN_BBPEN, 15200, 9500, 1023,
+ 31, INTUOS_HT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
static const struct wacom_features wacom_features_0x6004 =
{ "ISD-V4", WACOM_PKGLEN_GRAPHIRE, 12800, 8000, 255,
0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -2329,6 +2380,9 @@ const struct usb_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0x10D) },
{ USB_DEVICE_WACOM(0x300) },
{ USB_DEVICE_WACOM(0x301) },
+ { USB_DEVICE_WACOM(0x302) },
+ { USB_DEVICE_DETAILED(0x303, USB_CLASS_HID, 0, 0) },
+ { USB_DEVICE_DETAILED(0x30E, USB_CLASS_HID, 0, 0) },
{ USB_DEVICE_WACOM(0x304) },
{ USB_DEVICE_DETAILED(0x314, USB_CLASS_HID, 0, 0) },
{ USB_DEVICE_DETAILED(0x315, USB_CLASS_HID, 0, 0) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index fd23a37..ba9e335 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -54,6 +54,8 @@
#define WACOM_REPORT_TPCST 16
#define WACOM_REPORT_TPC1FGE 18
#define WACOM_REPORT_24HDT 1
+#define WACOM_REPORT_WL_MODE 128
+#define WACOM_REPORT_USB_MODE 192
/* device quirks */
#define WACOM_QUIRK_MULTI_INPUT 0x0001
@@ -81,6 +83,7 @@ enum {
INTUOSPS,
INTUOSPM,
INTUOSPL,
+ INTUOS_HT,
WACOM_21UX2,
WACOM_22HD,
DTK,
@@ -129,6 +132,10 @@ struct wacom_features {
struct wacom_shared {
bool stylus_in_proximity;
bool touch_down;
+ /* for wireless device to access USB interfaces */
+ unsigned touch_max;
+ int type;
+ struct input_dev *touch_input;
};
struct wacom_wac {
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index d08abf9..d4097b0 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -855,6 +855,7 @@ struct input_keymap_entry {
#define SW_FRONT_PROXIMITY 0x0b /* set = front proximity sensor active */
#define SW_ROTATE_LOCK 0x0c /* set = rotate locked/disabled */
#define SW_LINEIN_INSERT 0x0d /* set = inserted */
+#define SW_TOUCH_ENABLED 0x0e /* set = touch switch turned on (touch events off) */
#define SW_MAX 0x0f
#define SW_CNT (SW_MAX+1)
--
1.8.1.2
^ permalink raw reply related
* [PATCH 1/2] Input - wacom: Not all multi-interface devices support touch
From: Ping Cheng @ 2013-10-03 20:52 UTC (permalink / raw)
To: linux-input; +Cc: dmitry.torokhov, chris, Ping Cheng
Some multi-interface devices support expresskeys on a separate interface,
such as Bamboo; some multi-interface devices do not support touch at all,
such as Pen only Intuos5. Make sure we report the right device names.
Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
---
drivers/input/tablet/wacom_sys.c | 58 +++++++++++++++++++++++++---------------
drivers/input/tablet/wacom_wac.h | 4 ++-
2 files changed, 40 insertions(+), 22 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 63971b8..7bdb5e9 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -1188,34 +1188,47 @@ static void wacom_wireless_work(struct work_struct *work)
wacom_wac1->features =
*((struct wacom_features *)id->driver_info);
wacom_wac1->features.device_type = BTN_TOOL_PEN;
+ snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen",
+ wacom_wac1->features.name);
error = wacom_register_input(wacom1);
if (error)
- goto fail1;
+ goto fail;
/* Touch interface */
- wacom_wac2->features =
- *((struct wacom_features *)id->driver_info);
- wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
- wacom_wac2->features.device_type = BTN_TOOL_FINGER;
- wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
- error = wacom_register_input(wacom2);
- if (error)
- goto fail2;
+ if (wacom_wac1->features.touch_max) {
+ wacom_wac2->features =
+ *((struct wacom_features *)id->driver_info);
+ wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
+ wacom_wac2->features.device_type = BTN_TOOL_FINGER;
+ wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
+ if (wacom_wac2->features.touch_max)
+ snprintf(wacom_wac2->name, WACOM_NAME_MAX,
+ "%s (WL) Finger",wacom_wac2->features.name);
+ else
+ snprintf(wacom_wac2->name, WACOM_NAME_MAX,
+ "%s (WL) Pad",wacom_wac2->features.name);
+ error = wacom_register_input(wacom2);
+ if (error)
+ goto fail;
+ }
error = wacom_initialize_battery(wacom);
if (error)
- goto fail3;
+ goto fail;
}
return;
-fail3:
- input_unregister_device(wacom_wac2->input);
- wacom_wac2->input = NULL;
-fail2:
- input_unregister_device(wacom_wac1->input);
- wacom_wac1->input = NULL;
-fail1:
+fail:
+ if (wacom_wac2->input) {
+ input_unregister_device(wacom_wac2->input);
+ wacom_wac2->input = NULL;
+ }
+ if (wacom_wac1->input) {
+
+ input_unregister_device(wacom_wac1->input);
+ wacom_wac1->input = NULL;
+ }
return;
}
@@ -1332,10 +1345,13 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
struct usb_device *other_dev;
/* Append the device type to the name */
- strlcat(wacom_wac->name,
- features->device_type == BTN_TOOL_PEN ?
- " Pen" : " Finger",
- sizeof(wacom_wac->name));
+ if (features->device_type == BTN_TOOL_FINGER) {
+ if (features->touch_max)
+ strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX);
+ else
+ strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX);
+ } else
+ strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX);
other_dev = wacom_get_sibling(dev, features->oVid, features->oPid);
if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL)
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 2a432e6..fd23a37 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -14,6 +14,8 @@
/* maximum packet length for USB devices */
#define WACOM_PKGLEN_MAX 64
+#define WACOM_NAME_MAX 64
+
/* packet length for individual models */
#define WACOM_PKGLEN_PENPRTN 7
#define WACOM_PKGLEN_GRAPHIRE 8
@@ -130,7 +132,7 @@ struct wacom_shared {
};
struct wacom_wac {
- char name[64];
+ char name[WACOM_NAME_MAX];
unsigned char *data;
int tool[2];
int id[2];
--
1.8.1.2
^ permalink raw reply related
* [PATCH] Input: clarify gamepad API ABS values
From: David Herrmann @ 2013-10-03 13:27 UTC (permalink / raw)
To: linux-input; +Cc: Dmitry Torokhov, David Herrmann
It wasn't really clear from the gamepad-API description how ABS values are
mapped exactly. Clarify that negative is left/up and positive is
right/down. Unfortunately, this means I screwed up the Wii U ProController
ABI. Anyhow, this just means we continue to have 0 compatible gamepad
drivers in the kernel. User-space needs to fix them up, anyway, as all
other gamepads are also incompatible.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
Documentation/input/gamepad.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/input/gamepad.txt b/Documentation/input/gamepad.txt
index 8002c89..31bb6a4 100644
--- a/Documentation/input/gamepad.txt
+++ b/Documentation/input/gamepad.txt
@@ -122,12 +122,14 @@ D-Pad:
BTN_DPAD_*
Analog buttons are reported as:
ABS_HAT0X and ABS_HAT0Y
+ (for ABS values negative is left/up, positive is right/down)
Analog-Sticks:
The left analog-stick is reported as ABS_X, ABS_Y. The right analog stick is
reported as ABS_RX, ABS_RY. Zero, one or two sticks may be present.
If analog-sticks provide digital buttons, they are mapped accordingly as
BTN_THUMBL (first/left) and BTN_THUMBR (second/right).
+ (for ABS values negative is left/up, positive is right/down)
Triggers:
Trigger buttons can be available as digital or analog buttons or both. User-
@@ -138,6 +140,7 @@ Triggers:
ABS_HAT2X (right/ZR) and BTN_TL2 or ABS_HAT2Y (left/ZL).
If only one trigger-button combination is present (upper+lower), they are
reported as "right" triggers (BTN_TR/ABS_HAT1X).
+ (ABS trigger values start at 0, pressure is reported as positive values)
Menu-Pad:
Menu buttons are always digital and are mapped according to their location
--
1.8.4
^ permalink raw reply related
* [PATCH 2/9] input: ambakmi: Remove unnecessary amba_set_drvdata()
From: Michal Simek @ 2013-10-03 9:46 UTC (permalink / raw)
To: linux-kernel, monstr; +Cc: Russell King, Dmitry Torokhov, linux-input
In-Reply-To: <27e289763bbcb7d10f84081543cfc3a4dc770398.1380793579.git.michal.simek@xilinx.com>
[-- Attachment #1: Type: text/plain, Size: 803 bytes --]
Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.
Driver core change:
"device-core: Ensure drvdata = NULL when no driver is bound"
(sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
drivers/input/serio/ambakmi.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index 4e2fd44..b7c206d 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -167,8 +167,6 @@ static int amba_kmi_remove(struct amba_device *dev)
{
struct amba_kmi_port *kmi = amba_get_drvdata(dev);
- amba_set_drvdata(dev, NULL);
-
serio_unregister_port(kmi->io);
clk_put(kmi->clk);
iounmap(kmi->base);
--
1.8.2.3
[-- Attachment #2: Type: application/pgp-signature, Size: 198 bytes --]
^ permalink raw reply related
* Re: [PATCH] amba: Ensure drvdata is NULL
From: Michal Simek @ 2013-10-03 9:13 UTC (permalink / raw)
To: Russell King - ARM Linux
Cc: linux-fbdev, Dmitry Torokhov, Linus Walleij, Wim Van Sebroeck,
Jiri Slaby, zhangwei(Jovi), Vinod Koul, Michal Simek,
Tomi Valkeinen, linux-serial, linux-input, Chris Ball,
Jean-Christophe Plagniol-Villard, linux-watchdog, rtc-linux,
Mark Brown, Dan Williams, linux-arm-kernel, Alessandro Zummo,
monstr, Greg Kroah-Hartman, Randy Dunlap, linux-mmc, linux-kernel,
linux-spi
In-Reply-To: <20131002202521.GU12758@n2100.arm.linux.org.uk>
On 10/02/2013 10:25 PM, Russell King - ARM Linux wrote:
> On Mon, Sep 30, 2013 at 08:59:06AM +0200, Michal Simek wrote:
>> This patch is inpired by the patch for drvdata
>> "device-core: Ensure drvdata = NULL when no driver is bound"
>> (sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)
>>
>> Also it fixes all occurences in drivers.
>>
>> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
>> ---
>> This patch has been sent as RFC in this thread.
>> http://lkml.org/lkml/2013/9/4/393
>
> Why not have the driver core do this? Then it gets applied to all bus
> types uniformly.
ok - I have checked that path and it should be already done
in really_probe function which calls amba_probe() and then driver probe function.
It means that the patch should contain just "amba_set_drvdata(dev, NULL);"
removal and not touching bus.c file.
Thanks,
Michal
^ permalink raw reply
* [PATCH] HID: i2c-hid: add platform data for quirks
From: Bibek Basu @ 2013-10-03 8:48 UTC (permalink / raw)
To: benjamin.tissoires; +Cc: linux-tegra, jkosina, kadduri, linux-input, Bibek Basu
Some HID device does not responds to INPUT/FEATURE
report query during initialization. As a result HID driver
throws error even when its not mandatory according to the
HID specification. Add platform data to provide
quirk information to the driver so that init query is not
done on such devices.
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
---
drivers/hid/i2c-hid/i2c-hid.c | 1 +
include/linux/i2c/i2c-hid.h | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index fd7ce37..a7aec2c 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -1017,6 +1017,7 @@ static int i2c_hid_probe(struct i2c_client *client,
hid->version = le16_to_cpu(ihid->hdesc.bcdVersion);
hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
hid->product = le16_to_cpu(ihid->hdesc.wProductID);
+ hid->quirks = platform_data->quirks;
snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX",
client->name, hid->vendor, hid->product);
diff --git a/include/linux/i2c/i2c-hid.h b/include/linux/i2c/i2c-hid.h
index 7aa901d..12e682d 100644
--- a/include/linux/i2c/i2c-hid.h
+++ b/include/linux/i2c/i2c-hid.h
@@ -17,7 +17,7 @@
/**
* struct i2chid_platform_data - used by hid over i2c implementation.
* @hid_descriptor_address: i2c register where the HID descriptor is stored.
- *
+ * @quirks: quirks, if any for i2c-hid devices
* Note that it is the responsibility of the platform driver (or the acpi 5.0
* driver, or the flattened device tree) to setup the irq related to the gpio in
* the struct i2c_board_info.
@@ -31,6 +31,7 @@
*/
struct i2c_hid_platform_data {
u16 hid_descriptor_address;
+ u32 quirks;
};
#endif /* __LINUX_I2C_HID_H */
--
1.8.1.5
^ permalink raw reply related
* PROBLEM: Touchpad reported as: "elantech: unknown hardware version, aborting" -- missing multitouch and scrolling
From: Clayton Craft @ 2013-10-03 2:42 UTC (permalink / raw)
To: linux-input; +Cc: Clayton Craft
[1.] One line summary of the problem:
Touchpad is missing multitouch and scrolling
[2.] Full description of the problem/report:
Only basic functionality (right/left click, moving pointer) work.
Expectation is that the device would be detected as a touchpad with
support for multitouch/scrolling/etc. The laptop is an Acer S7 392.
The following message is printed to the kernel log:
[ 12.464107] psmouse serio1: elantech: unknown hardware version, aborting...
The bug was originally files here, and I was instructed to notify the
maintainers: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1232877
[3.] Keywords (i.e., modules, networking, kernel):
elantech, touchpad
[4.] Kernel version (from /proc/version):
clayton@ultrabook:~$ cat /proc/version
Linux version 3.12.0-031200rc3-generic (apw@gomeisa) (gcc version
4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201309291835 SMP Sun Sep 29
22:37:02 UTC 2013
[5.] Output of Oops.. message (if applicable) with symbolic information
resolved (see Documentation/oops-tracing.txt)
n/a
[6.] A small shell script or example program which triggers the
problem (if possible)
n/a
[7.] Environment
[7.1.] Software (add the output of the ver_linux script here)
clayton@ultrabook:~$ /usr/src/linux-headers-3.12.0-031200rc3/scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux ultrabook 3.12.0-031200rc3-generic #201309291835 SMP Sun Sep 29
22:37:02 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Gnu C 4.8
Gnu make 3.81
binutils 2.23.52.20130913
util-linux 2.20.1
mount support
module-init-tools 9
e2fsprogs 1.42.8
pcmciautils 018
PPP 2.4.5
Linux C Library 2.17
Dynamic linker (ldd) 2.17
Procps 3.3.3
Net-tools 1.60
Kbd 1.15.5
Sh-utils 8.20
wireless-tools 30
Modules Loaded x86_pkg_temp_thermal coretemp kvm_intel kvm
joydev arc4 acer_wmi sparse_keymap dm_multipath scsi_dh iwlmvm
mac80211 parport_pc ppdev microcode psmouse iwlwifi serio_raw
hid_multitouch uvcvideo videobuf2_vmalloc videobuf2_memops
snd_hda_codec_realtek videobuf2_core snd_hda_codec_hdmi videodev bnep
rfcomm btusb cfg80211 snd_hda_intel bluetooth snd_hda_codec snd_hwdep
snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi
snd_seq snd_seq_device snd_timer i2c_designware_platform
i2c_designware_core snd intel_smartconnect lpc_ich mac_hid tpm_tis
mei_me mei soundcore binfmt_misc nls_iso8859_1 lp parport ext2 usbhid
hid dm_crypt dm_mirror dm_region_hash dm_log crct10dif_pclmul
crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul
i915 glue_helper ablk_helper cryptd ahci libahci i2c_algo_bit
drm_kms_helper drm wmi video
[7.2.] Processor information (from /proc/cpuinfo):
clayton@ultrabook:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 69
model name : Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
stepping : 1
microcode : 0x10
cpu MHz : 2507.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida
arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid
bogomips : 4588.31
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 69
model name : Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
stepping : 1
microcode : 0x10
cpu MHz : 2484.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida
arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid
bogomips : 4588.31
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 69
model name : Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
stepping : 1
microcode : 0x10
cpu MHz : 2530.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 2
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida
arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid
bogomips : 4588.31
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 69
model name : Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
stepping : 1
microcode : 0x10
cpu MHz : 2438.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 2
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl
xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor
ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe
popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida
arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid
fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid
bogomips : 4588.31
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
[7.3.] Module information (from /proc/modules):
clayton@ultrabook:~$ cat /proc/modules
x86_pkg_temp_thermal 14269 0 - Live 0x0000000000000000
coretemp 17728 0 - Live 0x0000000000000000
kvm_intel 144049 0 - Live 0x0000000000000000
kvm 457676 1 kvm_intel, Live 0x0000000000000000
joydev 17575 0 - Live 0x0000000000000000
arc4 12573 2 - Live 0x0000000000000000
acer_wmi 32938 0 - Live 0x0000000000000000
sparse_keymap 13890 1 acer_wmi, Live 0x0000000000000000
dm_multipath 27371 0 - Live 0x0000000000000000
scsi_dh 14873 1 dm_multipath, Live 0x0000000000000000
iwlmvm 176559 0 - Live 0x0000000000000000
mac80211 634661 1 iwlmvm, Live 0x0000000000000000
parport_pc 32866 0 - Live 0x0000000000000000
ppdev 17711 0 - Live 0x0000000000000000
microcode 23650 0 - Live 0x0000000000000000
psmouse 104113 0 - Live 0x0000000000000000
iwlwifi 171124 1 iwlmvm, Live 0x0000000000000000
serio_raw 13462 0 - Live 0x0000000000000000
hid_multitouch 17645 0 - Live 0x0000000000000000
uvcvideo 82247 0 - Live 0x0000000000000000
videobuf2_vmalloc 13216 1 uvcvideo, Live 0x0000000000000000
videobuf2_memops 13362 1 videobuf2_vmalloc, Live 0x0000000000000000
snd_hda_codec_realtek 56695 1 - Live 0x0000000000000000
videobuf2_core 40903 1 uvcvideo, Live 0x0000000000000000
snd_hda_codec_hdmi 41684 1 - Live 0x0000000000000000
videodev 139144 2 uvcvideo,videobuf2_core, Live 0x0000000000000000
bnep 23966 2 - Live 0x0000000000000000
rfcomm 74658 12 - Live 0x0000000000000000
btusb 28326 0 - Live 0x0000000000000000
cfg80211 504229 3 iwlmvm,mac80211,iwlwifi, Live 0x0000000000000000
snd_hda_intel 57183 5 - Live 0x0000000000000000
bluetooth 391597 22 bnep,rfcomm,btusb, Live 0x0000000000000000
snd_hda_codec 194881 3
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel, Live
0x0000000000000000
snd_hwdep 13613 1 snd_hda_codec, Live 0x0000000000000000
snd_pcm 107140 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec, Live
0x0000000000000000
snd_page_alloc 18798 2 snd_hda_intel,snd_pcm, Live 0x0000000000000000
snd_seq_midi 13324 0 - Live 0x0000000000000000
snd_seq_midi_event 14899 1 snd_seq_midi, Live 0x0000000000000000
snd_rawmidi 30465 1 snd_seq_midi, Live 0x0000000000000000
snd_seq 66061 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
snd_seq_device 14497 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000
snd_timer 30038 2 snd_pcm,snd_seq, Live 0x0000000000000000
i2c_designware_platform 13006 0 - Live 0x0000000000000000
i2c_designware_core 14990 1 i2c_designware_platform, Live 0x0000000000000000
snd 73802 21 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq_midi,snd_rawmidi,snd_seq,snd_seq_device,snd_timer,
Live 0x0000000000000000
intel_smartconnect 12619 0 - Live 0x0000000000000000
lpc_ich 21163 0 - Live 0x0000000000000000
mac_hid 13253 0 - Live 0x0000000000000000
tpm_tis 19116 0 - Live 0x0000000000000000
mei_me 18418 0 - Live 0x0000000000000000
mei 78609 1 mei_me, Live 0x0000000000000000
soundcore 12680 1 snd, Live 0x0000000000000000
binfmt_misc 17508 1 - Live 0x0000000000000000
nls_iso8859_1 12713 1 - Live 0x0000000000000000
lp 17799 0 - Live 0x0000000000000000
parport 42481 3 parport_pc,ppdev,lp, Live 0x0000000000000000
ext2 73684 1 - Live 0x0000000000000000
usbhid 53067 0 - Live 0x0000000000000000
hid 106254 2 hid_multitouch,usbhid, Live 0x0000000000000000
dm_crypt 23012 1 - Live 0x0000000000000000
dm_mirror 22326 0 - Live 0x0000000000000000
dm_region_hash 20981 1 dm_mirror, Live 0x0000000000000000
dm_log 18527 2 dm_mirror,dm_region_hash, Live 0x0000000000000000
crct10dif_pclmul 14250 0 - Live 0x0000000000000000
crc32_pclmul 13160 0 - Live 0x0000000000000000
ghash_clmulni_intel 13259 0 - Live 0x0000000000000000
aesni_intel 55720 4 - Live 0x0000000000000000
aes_x86_64 17131 1 aesni_intel, Live 0x0000000000000000
lrw 13294 1 aesni_intel, Live 0x0000000000000000
gf128mul 14951 1 lrw, Live 0x0000000000000000
i915 733800 5 - Live 0x0000000000000000
glue_helper 14095 1 aesni_intel, Live 0x0000000000000000
ablk_helper 13597 1 aesni_intel, Live 0x0000000000000000
cryptd 20501 4 ghash_clmulni_intel,aesni_intel,ablk_helper, Live
0x0000000000000000
ahci 30063 2 - Live 0x0000000000000000
libahci 32088 1 ahci, Live 0x0000000000000000
i2c_algo_bit 13564 1 i915, Live 0x0000000000000000
drm_kms_helper 53165 1 i915, Live 0x0000000000000000
drm 303133 4 i915,drm_kms_helper, Live 0x0000000000000000
wmi 19363 1 acer_wmi, Live 0x0000000000000000
video 19574 2 acer_wmi,i915, Live 0x0000000000000000
[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
clayton@ultrabook:~$ cat /proc/ioports
0000-0cf7 : PCI Bus 0000:00
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-0060 : keyboard
0062-0062 : EC data
0064-0064 : keyboard
0066-0066 : EC cmd
0070-0071 : rtc_cmos
0070-0071 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
1800-1803 : ACPI PM1a_EVT_BLK
1804-1805 : ACPI PM1a_CNT_BLK
1808-180b : ACPI PM_TMR
1810-1815 : ACPI CPU throttle
1830-1833 : iTCO_wdt
1850-1850 : ACPI PM2_CNT_BLK
1860-187f : iTCO_wdt
1880-189f : ACPI GPE0_BLK
2000-2fff : PCI Bus 0000:01
3000-303f : 0000:00:02.0
3040-305f : 0000:00:1f.3
3060-307f : 0000:00:1f.2
3060-307f : ahci
3080-3087 : 0000:00:1f.2
3080-3087 : ahci
3088-308f : 0000:00:1f.2
3088-308f : ahci
3090-3093 : 0000:00:1f.2
3090-3093 : ahci
3094-3097 : 0000:00:1f.2
3094-3097 : ahci
clayton@ultrabook:~$ cat /proc/iomem
00000000-00000fff : reserved
00001000-0006efff : System RAM
0006f000-0006ffff : reserved
00070000-00087fff : System RAM
00088000-000bffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000c3fff : PCI Bus 0000:00
000c4000-000c7fff : PCI Bus 0000:00
000c8000-000cbfff : PCI Bus 0000:00
000cc000-000cffff : PCI Bus 0000:00
000d0000-000d3fff : PCI Bus 0000:00
000d4000-000d7fff : PCI Bus 0000:00
000d8000-000dbfff : PCI Bus 0000:00
000dc000-000dffff : PCI Bus 0000:00
000e0000-000e3fff : PCI Bus 0000:00
000e4000-000e7fff : PCI Bus 0000:00
000e8000-000ebfff : PCI Bus 0000:00
000ec000-000effff : PCI Bus 0000:00
000f0000-000fffff : PCI Bus 0000:00
000f0000-000fffff : System ROM
00100000-8c6befff : System RAM
02000000-02762924 : Kernel code
02762925-02d18c7f : Kernel data
02e72000-02fe4fff : Kernel bss
2c000000-33ffffff : Crash kernel
8c6bf000-8cebefff : reserved
8cebf000-8cfbefff : ACPI Non-volatile Storage
8cfbf000-8cffefff : ACPI Tables
8cfff000-8cffffff : System RAM
8d000000-9f9fffff : reserved
97a00000-9f9fffff : Graphics Stolen Memory
9fa00000-feafffff : PCI Bus 0000:00
9fa10000-9fa10fff : pnp 00:02
9fb00000-9fcfffff : PCI Bus 0000:01
a0000000-afffffff : 0000:00:02.0
b0000000-b03fffff : 0000:00:02.0
b0400000-b04fffff : PCI Bus 0000:01
b0400000-b0401fff : 0000:01:00.0
b0400000-b0401fff : iwlwifi
b0500000-b050ffff : 0000:00:14.0
b0500000-b050ffff : xhci_hcd
b0510000-b0513fff : 0000:00:03.0
b0510000-b0513fff : ICH HD audio
b0514000-b0517fff : 0000:00:1b.0
b0514000-b0517fff : ICH HD audio
b0519000-b0519007 : pnp 00:03
b0519014-b0519fff : pnp 00:03
b051a000-b051a01f : 0000:00:16.0
b051a000-b051a01f : mei_me
b051b000-b051b0ff : 0000:00:1f.3
b051d000-b051d7ff : 0000:00:1f.2
b051d000-b051d7ff : ahci
b051e000-b051e3ff : 0000:00:1d.0
b051e000-b051e3ff : ehci_hcd
b051f000-b051ffff : pnp 00:03
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
e0000000-efffffff : reserved
e0000000-efffffff : pnp 00:02
fe101000-fe112fff : reserved
fe105000-fe105fff : INT33C3:00
fe105000-fe105fff : INT33C3:00
fe106000-fe106fff : pnp 00:03
feb00000-feb0ffff : reserved
fec00000-fec00fff : reserved
fec00000-fec003ff : IOAPIC 0
fed00000-fee00fff : reserved
fed00000-fed003ff : HPET 0
fed10000-fed17fff : pnp 00:02
fed18000-fed18fff : pnp 00:02
fed19000-fed19fff : pnp 00:02
fed1c000-fed1ffff : pnp 00:02
fed1f410-fed1f414 : iTCO_wdt
fed20000-fed3ffff : pnp 00:02
fed90000-fed93fff : pnp 00:02
fee00000-fee00fff : Local APIC
ffc00000-ffffffff : reserved
100000000-25f5fffff : System RAM
25f600000-25fffffff : RAM buffer
[7.5.] PCI information ('lspci -vvv' as root)
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT
Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 59
Region 0: Memory at b0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at a0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 3000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
00:03.0 Audio device: Intel Corporation Device 0a0c (rev 09)
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 60
Region 0: Memory at b0510000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC
(rev 04) (prog-if 30 [XHCI])
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 62
Region 0: Memory at b0500000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI
#0 (rev 04)
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 61
Region 0: Memory at b051a000 (64-bit, non-prefetchable) [size=32]
Capabilities: <access denied>
Kernel driver in use: mei_me
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio
Controller (rev 04)
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 57
Region 0: Memory at b0514000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root
Port 3 (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: b0400000-b04fffff
Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1
(rev 04) (prog-if 20 [EHCI])
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 0: Memory at b051e000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA
Controller [RAID mode] (rev 04)
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 58
Region 0: I/O ports at 3088 [size=8]
Region 1: I/O ports at 3094 [size=4]
Region 2: I/O ports at 3080 [size=8]
Region 3: I/O ports at 3090 [size=4]
Region 4: I/O ports at 3060 [size=32]
Region 5: Memory at b051d000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
Subsystem: Acer Incorporated [ALI] Device 0817
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 0
Region 0: Memory at b051b000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at 3040 [size=32]
01:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
Subsystem: Intel Corporation Dual Band Wireless-N 7260
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 63
Region 0: Memory at b0400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
[7.6.] SCSI information (from /proc/scsi/scsi)
clayton@ultrabook:~$ cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: KINGSTON SMSR150 Rev: S8FM
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: KINGSTON SMSR150 Rev: S8FM
Type: Direct-Access ANSI SCSI revision: 05
[7.7.] Other information that might be relevant to the problem
(please look in /proc and include all information that you
think to be relevant):
clayton@ultrabook:~$ sudo lsusb -vvv -d 04f3:015b
[sudo] password for clayton:
Bus 002 Device 004: ID 04f3:015b Elan Microelectronics Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x04f3 Elan Microelectronics Corp.
idProduct 0x015b
bcdDevice 0.11
iManufacturer 4 ELAN
iProduct 14 Touchscreen
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 925
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 10
Device Status: 0x0001
Self Powered
[X.] Other notes, patches, fixes, workarounds:
<None>
^ permalink raw reply
* [RFC] Input: introduce ABS_MAX2/CNT2 and friends
From: David Herrmann @ 2013-10-02 22:10 UTC (permalink / raw)
To: linux-input
Cc: Dmitry Torokhov, Henrik Rydberg, Benjamin Tissoires, Jiri Kosina,
Peter Hutterer, linux-kernel, David Herrmann
As we painfully noticed during the 3.12 merge-window our
EVIOCGABS/EVIOCSABS API is limited to ABS_MAX<=0x3f. We tried several
hacks to work around it but if we ever decide to increase ABS_MAX, the
EVIOCSABS ioctl ABI might overflow into the next byte causing horrible
misinterpretations in the kernel that we cannot catch.
Therefore, we decided to go with ABS_MAX2/CNT2 and introduce two new
ioctls to get/set abs-params. They no longer encode the ABS code in the
ioctl number and thus allow up to 4 billion ABS codes.
Unfortunately, the uinput API also hard-coded the ABS_CNT value in its
ABI. To avoid any hacks in uinput, we simply introduce a new
uinput_user_dev2 to replace the old one. The new API allows growing
ABS_CNT2 values without any API changes.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
Hi
This is only compile-tested but I wanted to get a first revision out to let
people know what we're working on. Unfortunately, the ABS API has this horribly
low ABS_MAX limit and we couldn't figure out a way to increase it while keeping
ABI compatibility.
Any feedback and review is welcome. And if anyone spots ABI breakage by this
patch, please let me know. If nothing comes up I will patch libevdev to use the
new API, write some extensive test-cases and push this forward.
As a sidenote: I didn't modify joydev to use the new values. Fortunately, the
joydev API would allow switching to ABS_CNT2 without breaking API, but it would
limit the new ABS_CNT2 to 16k. This is quite high but nothing compared to the
2^32 that we can theoretically support now. If you think 16k ought to be enough
(probably?) I can adjust the joydev API, too.
All other kernel users were converted to the new values. Nothing left behind..
Thanks
David
drivers/hid/hid-debug.c | 2 +-
drivers/hid/hid-input.c | 2 +-
drivers/input/evdev.c | 63 ++++++++++++++-
drivers/input/input.c | 14 ++--
drivers/input/keyboard/goldfish_events.c | 6 +-
drivers/input/keyboard/hil_kbd.c | 2 +-
drivers/input/misc/uinput.c | 128 ++++++++++++++++++++++---------
include/linux/hid.h | 2 +-
include/linux/input.h | 6 +-
include/linux/mod_devicetable.h | 2 +-
include/uapi/linux/input.h | 31 +++++++-
include/uapi/linux/uinput.h | 13 ++++
12 files changed, 213 insertions(+), 58 deletions(-)
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 8453214..d32fa30 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -862,7 +862,7 @@ static const char *relatives[REL_MAX + 1] = {
[REL_WHEEL] = "Wheel", [REL_MISC] = "Misc",
};
-static const char *absolutes[ABS_CNT] = {
+static const char *absolutes[ABS_CNT2] = {
[ABS_X] = "X", [ABS_Y] = "Y",
[ABS_Z] = "Z", [ABS_RX] = "Rx",
[ABS_RY] = "Ry", [ABS_RZ] = "Rz",
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 8741d95..3e879bf 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1305,7 +1305,7 @@ static bool hidinput_has_been_populated(struct hid_input *hidinput)
for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
r |= hidinput->input->relbit[i];
- for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
+ for (i = 0; i < BITS_TO_LONGS(ABS_CNT2); i++)
r |= hidinput->input->absbit[i];
for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index b6ded17..c76b87e 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -635,7 +635,7 @@ static int handle_eviocgbit(struct input_dev *dev,
case 0: bits = dev->evbit; len = EV_MAX; break;
case EV_KEY: bits = dev->keybit; len = KEY_MAX; break;
case EV_REL: bits = dev->relbit; len = REL_MAX; break;
- case EV_ABS: bits = dev->absbit; len = ABS_MAX; break;
+ case EV_ABS: bits = dev->absbit; len = ABS_MAX2; break;
case EV_MSC: bits = dev->mscbit; len = MSC_MAX; break;
case EV_LED: bits = dev->ledbit; len = LED_MAX; break;
case EV_SND: bits = dev->sndbit; len = SND_MAX; break;
@@ -663,6 +663,61 @@ static int handle_eviocgbit(struct input_dev *dev,
}
#undef OLD_KEY_MAX
+static int evdev_handle_get_abs2(struct input_dev *dev, void __user *p)
+{
+ u32 code;
+ struct input_absinfo2 __user *pinfo = p;
+ struct input_absinfo abs;
+
+ if (!dev->absinfo)
+ return -EINVAL;
+
+ if (copy_from_user(&code, &pinfo->code, sizeof(code)))
+ return -EFAULT;
+
+ if (code >= ABS_CNT2)
+ return -EINVAL;
+
+ /*
+ * Take event lock to ensure that we are not
+ * copying data while EVIOCSABS2 changes it.
+ * Might be inconsistent, otherwise.
+ */
+ spin_lock_irq(&dev->event_lock);
+ abs = dev->absinfo[code];
+ spin_unlock_irq(&dev->event_lock);
+
+ if (copy_to_user(&pinfo->info, &abs, sizeof(abs)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int evdev_handle_set_abs2(struct input_dev *dev, void __user *p)
+{
+ struct input_absinfo2 info;
+
+ if (!dev->absinfo)
+ return -EINVAL;
+
+ if (copy_from_user(&info, p, sizeof(info)))
+ return -EFAULT;
+
+ if (info.code == ABS_MT_SLOT || info.code >= ABS_CNT2)
+ return -EINVAL;
+
+ /*
+ * Take event lock to ensure that we are not
+ * changing device parameters in the middle
+ * of event.
+ */
+ spin_lock_irq(&dev->event_lock);
+ dev->absinfo[info.code] = info.info;
+ spin_unlock_irq(&dev->event_lock);
+
+ return 0;
+}
+
static int evdev_handle_get_keycode(struct input_dev *dev, void __user *p)
{
struct input_keymap_entry ke = {
@@ -890,6 +945,12 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
client->clkid = i;
return 0;
+ case EVIOCGABS2:
+ return evdev_handle_get_abs2(dev, p);
+
+ case EVIOCSABS2:
+ return evdev_handle_set_abs2(dev, p);
+
case EVIOCGKEYCODE:
return evdev_handle_get_keycode(dev, p);
diff --git a/drivers/input/input.c b/drivers/input/input.c
index c044699..bc88f17 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -305,7 +305,7 @@ static int input_get_disposition(struct input_dev *dev,
break;
case EV_ABS:
- if (is_event_supported(code, dev->absbit, ABS_MAX))
+ if (is_event_supported(code, dev->absbit, ABS_MAX2))
disposition = input_handle_abs_event(dev, code, &value);
break;
@@ -474,7 +474,7 @@ EXPORT_SYMBOL(input_inject_event);
void input_alloc_absinfo(struct input_dev *dev)
{
if (!dev->absinfo)
- dev->absinfo = kcalloc(ABS_CNT, sizeof(struct input_absinfo),
+ dev->absinfo = kcalloc(ABS_CNT2, sizeof(struct input_absinfo),
GFP_KERNEL);
WARN(!dev->absinfo, "%s(): kcalloc() failed?\n", __func__);
@@ -954,7 +954,7 @@ static const struct input_device_id *input_match_device(struct input_handler *ha
if (!bitmap_subset(id->relbit, dev->relbit, REL_MAX))
continue;
- if (!bitmap_subset(id->absbit, dev->absbit, ABS_MAX))
+ if (!bitmap_subset(id->absbit, dev->absbit, ABS_MAX2))
continue;
if (!bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX))
@@ -1147,7 +1147,7 @@ static int input_devices_seq_show(struct seq_file *seq, void *v)
if (test_bit(EV_REL, dev->evbit))
input_seq_print_bitmap(seq, "REL", dev->relbit, REL_MAX);
if (test_bit(EV_ABS, dev->evbit))
- input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX);
+ input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX2);
if (test_bit(EV_MSC, dev->evbit))
input_seq_print_bitmap(seq, "MSC", dev->mscbit, MSC_MAX);
if (test_bit(EV_LED, dev->evbit))
@@ -1333,7 +1333,7 @@ static int input_print_modalias(char *buf, int size, struct input_dev *id,
len += input_print_modalias_bits(buf + len, size - len,
'r', id->relbit, 0, REL_MAX);
len += input_print_modalias_bits(buf + len, size - len,
- 'a', id->absbit, 0, ABS_MAX);
+ 'a', id->absbit, 0, ABS_MAX2);
len += input_print_modalias_bits(buf + len, size - len,
'm', id->mscbit, 0, MSC_MAX);
len += input_print_modalias_bits(buf + len, size - len,
@@ -1592,7 +1592,7 @@ static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env)
if (test_bit(EV_REL, dev->evbit))
INPUT_ADD_HOTPLUG_BM_VAR("REL=", dev->relbit, REL_MAX);
if (test_bit(EV_ABS, dev->evbit))
- INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX);
+ INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX2);
if (test_bit(EV_MSC, dev->evbit))
INPUT_ADD_HOTPLUG_BM_VAR("MSC=", dev->mscbit, MSC_MAX);
if (test_bit(EV_LED, dev->evbit))
@@ -1924,7 +1924,7 @@ static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */
- for (i = 0; i < ABS_CNT; i++) {
+ for (i = 0; i < ABS_CNT2; i++) {
if (test_bit(i, dev->absbit)) {
if (input_is_mt_axis(i))
events += mt_slots;
diff --git a/drivers/input/keyboard/goldfish_events.c b/drivers/input/keyboard/goldfish_events.c
index 9f60a2e..9999cea 100644
--- a/drivers/input/keyboard/goldfish_events.c
+++ b/drivers/input/keyboard/goldfish_events.c
@@ -90,8 +90,8 @@ static void events_import_abs_params(struct event_dev *edev)
__raw_writel(PAGE_ABSDATA, addr + REG_SET_PAGE);
count = __raw_readl(addr + REG_LEN) / sizeof(val);
- if (count > ABS_MAX)
- count = ABS_MAX;
+ if (count > ABS_MAX2)
+ count = ABS_MAX2;
for (i = 0; i < count; i++) {
if (!test_bit(i, input_dev->absbit))
@@ -158,7 +158,7 @@ static int events_probe(struct platform_device *pdev)
events_import_bits(edev, input_dev->evbit, EV_SYN, EV_MAX);
events_import_bits(edev, input_dev->keybit, EV_KEY, KEY_MAX);
events_import_bits(edev, input_dev->relbit, EV_REL, REL_MAX);
- events_import_bits(edev, input_dev->absbit, EV_ABS, ABS_MAX);
+ events_import_bits(edev, input_dev->absbit, EV_ABS, ABS_MAX2);
events_import_bits(edev, input_dev->mscbit, EV_MSC, MSC_MAX);
events_import_bits(edev, input_dev->ledbit, EV_LED, LED_MAX);
events_import_bits(edev, input_dev->sndbit, EV_SND, SND_MAX);
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 589e3c2..4e4e010 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -387,7 +387,7 @@ static void hil_dev_pointer_setup(struct hil_dev *ptr)
0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);
#ifdef TABLET_AUTOADJUST
- for (i = 0; i < ABS_MAX; i++) {
+ for (i = 0; i < ABS_MAX2; i++) {
int diff = input_abs_get_max(input_dev, ABS_X + i) / 10;
input_abs_set_min(input_dev, ABS_X + i,
input_abs_get_min(input_dev, ABS_X + i) + diff);
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index a0a4bba..72029d6 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -311,7 +311,7 @@ static int uinput_validate_absbits(struct input_dev *dev)
unsigned int cnt;
int retval = 0;
- for (cnt = 0; cnt < ABS_CNT; cnt++) {
+ for (cnt = 0; cnt < ABS_CNT2; cnt++) {
int min, max;
if (!test_bit(cnt, dev->absbit))
continue;
@@ -358,14 +358,15 @@ static int uinput_allocate_device(struct uinput_device *udev)
}
static int uinput_setup_device(struct uinput_device *udev,
- const char __user *buffer, size_t count)
+ struct uinput_user_dev2 *user_dev2,
+ size_t abscnt)
{
- struct uinput_user_dev *user_dev;
struct input_dev *dev;
int i;
int retval;
- if (count != sizeof(struct uinput_user_dev))
+ /* Ensure name is filled in */
+ if (!user_dev2->name[0])
return -EINVAL;
if (!udev->dev) {
@@ -375,37 +376,24 @@ static int uinput_setup_device(struct uinput_device *udev,
}
dev = udev->dev;
-
- user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
- if (IS_ERR(user_dev))
- return PTR_ERR(user_dev);
-
- udev->ff_effects_max = user_dev->ff_effects_max;
-
- /* Ensure name is filled in */
- if (!user_dev->name[0]) {
- retval = -EINVAL;
- goto exit;
- }
+ udev->ff_effects_max = user_dev2->ff_effects_max;
kfree(dev->name);
- dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
+ dev->name = kstrndup(user_dev2->name, UINPUT_MAX_NAME_SIZE,
GFP_KERNEL);
- if (!dev->name) {
- retval = -ENOMEM;
- goto exit;
- }
+ if (!dev->name)
+ return -ENOMEM;
- dev->id.bustype = user_dev->id.bustype;
- dev->id.vendor = user_dev->id.vendor;
- dev->id.product = user_dev->id.product;
- dev->id.version = user_dev->id.version;
+ dev->id.bustype = user_dev2->id.bustype;
+ dev->id.vendor = user_dev2->id.vendor;
+ dev->id.product = user_dev2->id.product;
+ dev->id.version = user_dev2->id.version;
- for (i = 0; i < ABS_CNT; i++) {
- input_abs_set_max(dev, i, user_dev->absmax[i]);
- input_abs_set_min(dev, i, user_dev->absmin[i]);
- input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
- input_abs_set_flat(dev, i, user_dev->absflat[i]);
+ for (i = 0; i < abscnt; i++) {
+ input_abs_set_max(dev, i, user_dev2->abs[i].max);
+ input_abs_set_min(dev, i, user_dev2->abs[i].min);
+ input_abs_set_fuzz(dev, i, user_dev2->abs[i].fuzz);
+ input_abs_set_flat(dev, i, user_dev2->abs[i].flat);
}
/* check if absmin/absmax/absfuzz/absflat are filled as
@@ -413,7 +401,7 @@ static int uinput_setup_device(struct uinput_device *udev,
if (test_bit(EV_ABS, dev->evbit)) {
retval = uinput_validate_absbits(dev);
if (retval < 0)
- goto exit;
+ return retval;
if (test_bit(ABS_MT_SLOT, dev->absbit)) {
int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
input_mt_init_slots(dev, nslot, 0);
@@ -423,11 +411,72 @@ static int uinput_setup_device(struct uinput_device *udev,
}
udev->state = UIST_SETUP_COMPLETE;
- retval = count;
+ return 0;
+}
+
+static int uinput_setup_device1(struct uinput_device *udev,
+ const char __user *buffer, size_t count)
+{
+ struct uinput_user_dev *user_dev;
+ struct uinput_user_dev2 *user_dev2;
+ int i;
+ int retval;
+
+ if (count != sizeof(struct uinput_user_dev))
+ return -EINVAL;
+
+ user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
+ if (IS_ERR(user_dev))
+ return PTR_ERR(user_dev);
+
+ user_dev2 = kmalloc(sizeof(*user_dev2), GFP_KERNEL);
+ if (!user_dev2) {
+ kfree(user_dev);
+ return -ENOMEM;
+ }
+
+ memcpy(user_dev2->name, user_dev->name, UINPUT_MAX_NAME_SIZE);
+ memcpy(&user_dev2->id, &user_dev->id, sizeof(struct input_id));
+ user_dev2->ff_effects_max = user_dev->ff_effects_max;
+
+ for (i = 0; i < ABS_CNT; ++i) {
+ user_dev2->abs[i].max = user_dev->absmax[i];
+ user_dev2->abs[i].min = user_dev->absmin[i];
+ user_dev2->abs[i].fuzz = user_dev->absfuzz[i];
+ user_dev2->abs[i].flat = user_dev->absflat[i];
+ }
+
+ retval = uinput_setup_device(udev, user_dev2, ABS_CNT);
- exit:
kfree(user_dev);
- return retval;
+ kfree(user_dev2);
+
+ return retval ? retval : count;
+}
+
+static int uinput_setup_device2(struct uinput_device *udev,
+ const char __user *buffer, size_t count)
+{
+ struct uinput_user_dev2 *user_dev2;
+ int retval;
+ size_t off, abscnt;
+
+ /* The first revision of "uinput_user_dev2" is bigger than
+ * "uinput_user_dev" and growing. Disallow any smaller payloads. */
+ if (count <= sizeof(struct uinput_user_dev))
+ return -EINVAL;
+
+ user_dev2 = memdup_user(buffer, count);
+ if (IS_ERR(user_dev2))
+ return PTR_ERR(user_dev2);
+
+ off = offsetof(struct uinput_user_dev2, abs);
+ abscnt = (count - off) / sizeof(struct uinput_user_absinfo);
+ retval = uinput_setup_device(udev, user_dev2, abscnt);
+
+ kfree(user_dev2);
+
+ return retval ? retval : count;
}
static ssize_t uinput_inject_event(struct uinput_device *udev,
@@ -459,9 +508,12 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer,
if (retval)
return retval;
- retval = udev->state == UIST_CREATED ?
- uinput_inject_event(udev, buffer, count) :
- uinput_setup_device(udev, buffer, count);
+ if (udev->state == UIST_CREATED)
+ retval = uinput_inject_event(udev, buffer, count);
+ else if (count <= sizeof(struct uinput_user_dev))
+ retval = uinput_setup_device1(udev, buffer, count);
+ else
+ retval = uinput_setup_device2(udev, buffer, count);
mutex_unlock(&udev->mutex);
@@ -702,7 +754,7 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
break;
case UI_SET_ABSBIT:
- retval = uinput_set_bit(arg, absbit, ABS_MAX);
+ retval = uinput_set_bit(arg, absbit, ABS_MAX2);
break;
case UI_SET_MSCBIT:
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 31b9d29..c21d8bb 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -828,7 +828,7 @@ static inline void hid_map_usage(struct hid_input *hidinput,
switch (type) {
case EV_ABS:
*bit = input->absbit;
- *max = ABS_MAX;
+ *max = ABS_MAX2;
break;
case EV_REL:
*bit = input->relbit;
diff --git a/include/linux/input.h b/include/linux/input.h
index 82ce323..c6add6f 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -129,7 +129,7 @@ struct input_dev {
unsigned long evbit[BITS_TO_LONGS(EV_CNT)];
unsigned long keybit[BITS_TO_LONGS(KEY_CNT)];
unsigned long relbit[BITS_TO_LONGS(REL_CNT)];
- unsigned long absbit[BITS_TO_LONGS(ABS_CNT)];
+ unsigned long absbit[BITS_TO_LONGS(ABS_CNT2)];
unsigned long mscbit[BITS_TO_LONGS(MSC_CNT)];
unsigned long ledbit[BITS_TO_LONGS(LED_CNT)];
unsigned long sndbit[BITS_TO_LONGS(SND_CNT)];
@@ -210,8 +210,8 @@ struct input_dev {
#error "REL_MAX and INPUT_DEVICE_ID_REL_MAX do not match"
#endif
-#if ABS_MAX != INPUT_DEVICE_ID_ABS_MAX
-#error "ABS_MAX and INPUT_DEVICE_ID_ABS_MAX do not match"
+#if ABS_MAX2 != INPUT_DEVICE_ID_ABS_MAX
+#error "ABS_MAX2 and INPUT_DEVICE_ID_ABS_MAX do not match"
#endif
#if MSC_MAX != INPUT_DEVICE_ID_MSC_MAX
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 45e9214..329aa30 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -277,7 +277,7 @@ struct pcmcia_device_id {
#define INPUT_DEVICE_ID_KEY_MIN_INTERESTING 0x71
#define INPUT_DEVICE_ID_KEY_MAX 0x2ff
#define INPUT_DEVICE_ID_REL_MAX 0x0f
-#define INPUT_DEVICE_ID_ABS_MAX 0x3f
+#define INPUT_DEVICE_ID_ABS_MAX 0x4f
#define INPUT_DEVICE_ID_MSC_MAX 0x07
#define INPUT_DEVICE_ID_LED_MAX 0x0f
#define INPUT_DEVICE_ID_SND_MAX 0x07
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index a372627..4a6082a 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -74,6 +74,21 @@ struct input_absinfo {
};
/**
+ * struct input_absinfo2 - used by EVIOC[G/S]ABS2 ioctls
+ * @code: ABS code to query
+ * @info: absinfo structure to get/set abs parameters for @code
+ *
+ * This structure is used by the new EVIOC[G/S]ABS2 ioctls which
+ * do the same as the old EVIOC[G/S]ABS ioctls but avoid encoding
+ * the ABS code in the ioctl number. This allows a much wider
+ * range of ABS codes.
+ */
+struct input_absinfo2 {
+ __u32 code;
+ struct input_absinfo info;
+};
+
+/**
* struct input_keymap_entry - used by EVIOCGKEYCODE/EVIOCSKEYCODE ioctls
* @scancode: scancode represented in machine-endian form.
* @len: length of the scancode that resides in @scancode buffer.
@@ -153,6 +168,8 @@ struct input_keymap_entry {
#define EVIOCGRAB _IOW('E', 0x90, int) /* Grab/Release device */
#define EVIOCREVOKE _IOW('E', 0x91, int) /* Revoke device access */
+#define EVIOCGABS2 _IOR('E', 0x92, struct input_absinfo2) /* get abs value/limits */
+#define EVIOCSABS2 _IOW('E', 0x93, struct input_absinfo2) /* set abs value/limits */
#define EVIOCSCLOCKID _IOW('E', 0xa0, int) /* Set clockid to be used for timestamps */
@@ -832,11 +849,23 @@ struct input_keymap_entry {
#define ABS_MT_TOOL_X 0x3c /* Center X tool position */
#define ABS_MT_TOOL_Y 0x3d /* Center Y tool position */
-
+/*
+ * ABS_MAX/CNT is limited to a maximum of 0x3f due to the design of EVIOCGABS
+ * and EVIOCSABS ioctls. Other kernel APIs like uinput also hardcoded it. Do
+ * not modify this value and instead use the extended ABS_MAX2/CNT2 API.
+ */
#define ABS_MAX 0x3f
#define ABS_CNT (ABS_MAX+1)
/*
+ * Due to API restrictions the legacy evdev API only supports ABS values up to
+ * ABS_MAX/CNT. Use the extended *ABS2 ioctls to operate on any ABS values in
+ * between ABS_MAX and ABS_MAX2.
+ */
+#define ABS_MAX2 0x4f
+#define ABS_CNT2 (ABS_MAX2+1)
+
+/*
* Switch events
*/
diff --git a/include/uapi/linux/uinput.h b/include/uapi/linux/uinput.h
index fe46431..124e20c 100644
--- a/include/uapi/linux/uinput.h
+++ b/include/uapi/linux/uinput.h
@@ -134,4 +134,17 @@ struct uinput_user_dev {
__s32 absfuzz[ABS_CNT];
__s32 absflat[ABS_CNT];
};
+
+struct uinput_user_dev2 {
+ char name[UINPUT_MAX_NAME_SIZE];
+ struct input_id id;
+ __u32 ff_effects_max;
+ struct uinput_user_absinfo {
+ __s32 max;
+ __s32 min;
+ __s32 fuzz;
+ __s32 flat;
+ } abs[ABS_CNT2];
+};
+
#endif /* _UAPI__UINPUT_H_ */
--
1.8.4
^ permalink raw reply related
* Re: [PATCH] amba: Ensure drvdata is NULL
From: Russell King - ARM Linux @ 2013-10-02 20:25 UTC (permalink / raw)
To: Michal Simek
Cc: linux-kernel, monstr, Dan Williams, Vinod Koul, Dmitry Torokhov,
Chris Ball, Alessandro Zummo, Linus Walleij, Mark Brown,
Greg Kroah-Hartman, Jiri Slaby, Jean-Christophe Plagniol-Villard,
Tomi Valkeinen, Wim Van Sebroeck, Andrew Morton, zhangwei(Jovi),
Randy Dunlap, linux-arm-kernel, linux-input, linux-mmc, rtc-linux,
linux-spi, linux-serial, linux-fbdev, linux-watchdog
In-Reply-To: <1b2479137287fa8dfda3089ca0cb9fba8c4b1f1d.1380524337.git.michal.simek@xilinx.com>
On Mon, Sep 30, 2013 at 08:59:06AM +0200, Michal Simek wrote:
> This patch is inpired by the patch for drvdata
> "device-core: Ensure drvdata = NULL when no driver is bound"
> (sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)
>
> Also it fixes all occurences in drivers.
>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> ---
> This patch has been sent as RFC in this thread.
> http://lkml.org/lkml/2013/9/4/393
Why not have the driver core do this? Then it gets applied to all bus
types uniformly.
Thanks.
^ permalink raw reply
* Re: New USB core API to change interval and max packet size
From: Alan Stern @ 2013-10-02 19:37 UTC (permalink / raw)
To: Sarah Sharp; +Cc: Xenia Ragiadakou, linux-usb, linux-input, linux-media
In-Reply-To: <Pine.LNX.4.44L0.1310021449240.1293-100000@iolanthe.rowland.org>
On Wed, 2 Oct 2013, Alan Stern wrote:
> > Ok, so it sounds like we want to keep the changes the endpoints across
> > alt setting changes.
>
> No, just the opposite. That was the point I was trying to make. Any
> changes to ep5 in altsetting 0 (for example) will have no effect on ep1
----------------------------------------------------------------------^^^
Typo: this should have been ep5 as well.
> in altsetting 1, because the two altsettings reference the endpoint by
> two separate usb_host_endpoint structures.
Alan Stern
^ permalink raw reply
* Re: New USB core API to change interval and max packet size
From: Alan Stern @ 2013-10-02 19:08 UTC (permalink / raw)
To: Sarah Sharp
Cc: Xenia Ragiadakou, linux-usb-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-media-u79uwXL29TY76Z2rM5mHXA
In-Reply-To: <20131002183905.GG15395@xanatos>
On Wed, 2 Oct 2013, Sarah Sharp wrote:
> > In particular, do we want to go around changing single endpoints, one
> > at a time? Or do we want to change all the endpoints in an interface
> > at once?
> >
> > Given that a change to one endpoint may require the entire schedule to
> > be recomputed, it seems to make more sense to do all of them at once.
> > For example, drivers could call a routine to set the desired endpoint
> > parameters, and then the new parameters could take effect when the
> > driver calls usb_set_interface().
>
> I think it makes sense to change several endpoints, and then ask the
> host to recompute the schedule. Perhaps the driver could issue several
> calls to usb_change_ep_bandwidth and then ask the USB core to update the
> host's schedule?
That's what I had in mind. Note that usb_set_interface() already
updates the schedule.
> I'm not sure that usb_set_interface() is the right function for the new
> parameters to take effect. What if the driver is trying to modify the
> current alt setting? Would they need to call usb_set_interface() again?
Yes. I can see two disadvantages:
You don't want to call usb_set_interface() if there are any
transfers in progress for endpoints in that interface -- even
endpoints whose bandwidth you aren't trying to change. The
transfers would get shut down.
usb_set_interface() communicates with the device, which isn't
necessary if you're merely updating the host's schedule.
The alternatives are either a separate function to do the schedule
update, or else pass usb_change_ep_bandwidth() an array or list of
endpoint info and have it do all the updates at once. I think a
separate function would be easier for drivers to use.
> > In any case, the question about what to do when the interface setting
> > gets switched never really arises. Each usb_host_endpoint structure is
> > referenced from only one altsetting. If the driver wants the new
> > parameters applied to an endpoint in several altsettings, it will have
> > to change each altsetting separately.
>
> Ok, so it sounds like we want to keep the changes the endpoints across
> alt setting changes.
No, just the opposite. That was the point I was trying to make. Any
changes to ep5 in altsetting 0 (for example) will have no effect on ep1
in altsetting 1, because the two altsettings reference the endpoint by
two separate usb_host_endpoint structures.
Furthermore, it generally doesn't make sense to apply a single change
across multiple altsettings. An isochronous endpoint, for example,
might have maxpacket = 500 in one altsetting and 900 in another. When
you reduce the 500 to 400, that doesn't mean you also want to reduce
the 900 to 400.
> But we still want to reset the values after the
> driver unbinds, correct?
Absolutely. When the next driver binds, it should get the default
values (i.e., the ones stored in the descriptors). This would be
analogous to the way we currently set each interface back to altsetting
0 when a driver unbinds.
Alan Stern
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply
* Re: New USB core API to change interval and max packet size
From: Sarah Sharp @ 2013-10-02 18:39 UTC (permalink / raw)
To: Alan Stern; +Cc: Xenia Ragiadakou, linux-usb, linux-input, linux-media
In-Reply-To: <Pine.LNX.4.44L0.1310021007110.1293-100000@iolanthe.rowland.org>
On Wed, Oct 02, 2013 at 10:22:52AM -0400, Alan Stern wrote:
> On Tue, 1 Oct 2013, Sarah Sharp wrote:
>
> > > When you say a new API, what do you mean? New functions in usbcore
> > > to be used by usb device drivers?
> >
> > Yes. You would export the function in the USB core, and put a prototype
> > in a USB include file (probably in include/linux/usb.h). Let's say that
> > function is called usb_change_ep_bandwidth.
> >
> > Drivers could call into that function when they needed to change either
> > the bInterval or wMaxPacketSize of a particular endpoint. This could be
> > during the driver's probe function, or before switching alternate
> > interface settings, or even after the alt setting is in place, but
> > userspace dictates the driver use a different bandwidth.
> >
> > Drivers should pass usb_change_ep_bandwidth a pointer to the endpoint
> > they need to change, along with the bInterval and wMaxPacketSize values
> > they would like the endpoint to have. Those values could be stored as
> > new values in struct usb_host_endpoint.
> >
> > usb_change_ep_bandwidth would then call into the xHCI driver to drop the
> > endpoint, re-add it, and then issue a bandwidth change. The xHCI driver
> > would have to be changed to look at the new fields in usb_host_endpoint,
> > and set up the endpoint contexts with the interval and packet size from
> > those fields, instead of the endpoint descriptor.
> >
> > We should probably set the new values in usb_host_endpoint to zero after
> > the driver unbinds from the device. Not sure if they should be reset
> > after the driver switches interfaces. I would have to see the use cases
> > in the driver.
>
> We should consider this before rushing into a new API.
Yes, I agree. :) That's why I'd like to see some cases in the media
drivers code where it could benefit from changing the interval or
maxpacket size, so that we can see what use cases we have. Mauro, can
you point is to places in drivers that would need this?
> In particular, do we want to go around changing single endpoints, one
> at a time? Or do we want to change all the endpoints in an interface
> at once?
>
> Given that a change to one endpoint may require the entire schedule to
> be recomputed, it seems to make more sense to do all of them at once.
> For example, drivers could call a routine to set the desired endpoint
> parameters, and then the new parameters could take effect when the
> driver calls usb_set_interface().
I think it makes sense to change several endpoints, and then ask the
host to recompute the schedule. Perhaps the driver could issue several
calls to usb_change_ep_bandwidth and then ask the USB core to update the
host's schedule?
I'm not sure that usb_set_interface() is the right function for the new
parameters to take effect. What if the driver is trying to modify the
current alt setting? Would they need to call usb_set_interface() again?
> In any case, the question about what to do when the interface setting
> gets switched never really arises. Each usb_host_endpoint structure is
> referenced from only one altsetting. If the driver wants the new
> parameters applied to an endpoint in several altsettings, it will have
> to change each altsetting separately.
Ok, so it sounds like we want to keep the changes the endpoints across
alt setting changes. But we still want to reset the values after the
driver unbinds, correct?
Sarah Sharp
^ permalink raw reply
* Re: New USB core API to change interval and max packet size
From: Sarah Sharp @ 2013-10-02 18:26 UTC (permalink / raw)
To: Xenia Ragiadakou; +Cc: linux-usb, Alan Stern, linux-input, linux-media
In-Reply-To: <524B3B94.8060806@gmail.com>
On Wed, Oct 02, 2013 at 12:16:04AM +0300, Xenia Ragiadakou wrote:
> On 10/01/2013 11:45 PM, Sarah Sharp wrote:
> >Sure. I would actually suggest you first finish up the patch to issue a
> >configure endpoint if userspace wants to clear a halt, but the endpoint
> >isn't actually halted. Did your most current patch work? I can't
> >remember what the status was.
> >
> >Sarah Sharp
>
> Thanks for the clarification, I understand better now.
> As far as concerns the reset endpoint fix, I am not sure if it works
> I have to send an RFC so that it can be further tested but I have a
> lot of pending RFCs for xhci on the mailing list so i was waiting
> for those to be reviewed before sending new ones. Or it is not
> necessary to wait and just send the RFC based on current usb-next
> tree?
Go ahead and send that one as well.
Sarah Sharp
^ permalink raw reply
* [hp mini 210-1000] touchpad "jump" when try to select elements
From: Stefano Statuti @ 2013-10-02 17:18 UTC (permalink / raw)
To: linux-input@vger.kernel.org, linux-aio@kvack.org,
christopher.m.penalver@gmail.com
In-Reply-To: <DUB107-W48CA14D4723A8FA01E534983150@phx.gbl>
[1.] One line summary of the problem:
[hp mini 210-1000] touch pad "jump" when try to select elements
[2.] Full description of the problem/report:
1) if i click on left button and try to select (using 2 different
fingers) some element (like word in a website) the icon of mouse has a
strange comportament, "jump".
mouse is this _http://h10032.www1.hp.com/ctg/Manual/c02241565.pdf page n° 14
2) if i try to put my finger into touchpad on "Left touchpad button" (or
Right touchpad button) and try to scroll my finger over the button the
mouse's pointer moves, instead it should not!
3) in this mouse there is a led (TouchPad on/off button) but NOT
work. From manual I have this description : "Turns the Touch Pad on and
off. Quickly double-tap the button to turn the TouchPad on and off."
[3.] Keywords (i.e., modules, networking, kernel): Please do not put
anything here. This is how Kernel.org uses an undocumented keyword
system then the Ubuntu Tags system.
[4.] Kernel version (from /proc/version):
annalisa@annalisa-HP-Mini-210-1000:~$ cat /proc/version
Linux version 3.12.0-031200rc3-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201309291835 SMP Sun Sep 29 22:46:02 UTC 2013
annalisa@annalisa-HP-Mini-210-1000:~$
[5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt)
This is only relevant if you had a oops crash (ex. flashing Caps Lock light). While booted into the newest upstream mainline kernel only, if you have a kernel oops, one may consult http://www.kernel.org/doc/Documentation/oops-tracing.txt . If this is too daunting please ask for help in your bug report, and of the Ubuntu community.
[6.] A small shell script or example program which triggers the problem (if possible)
This is for advanced community members. If you feel comfortable enough
to do this, please do it. It is not crtical if this is beyond your skill
level.
[7.] Environment
annalisa@annalisa-HP-Mini-210-1000:~$ lsb_release -rd
Description: Ubuntu 13.04
Release: 13.04
[7.1.] Software (add the output of the ver_linux script here)
annalisa@annalisa-HP-Mini-210-1000:~$ /usr/src/linux-headers-3.12.0-031200rc3/scripts/ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux annalisa-HP-Mini-210-1000 3.12.0-031200rc3-generic #201309291835 SMP Sun Sep 29 22:46:02 UTC 2013 i686 i686 i686 GNU/Linux
Gnu C 4.7
Gnu make 3.81
binutils 2.23.2
util-linux 2.20.1
mount support
module-init-tools 9
e2fsprogs 1.42.5
pcmciautils 018
PPP 2.4.5
Linux C Library 2.17
Dynamic linker (ldd) 2.17
Procps 3.3.3
Net-tools 1.60
Kbd 1.15.5
Sh-utils 8.20
wireless-tools 30
Modules Loaded snd_hda_codec_idt snd_hda_intel joydev snd_hda_codec snd_hwdep hp_wmi sparse_keymap snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event parport_pc snd_rawmidi ppdev i915 rfcomm bnep bluetooth snd_seq drm_kms_helper uvcvideo snd_seq_device videobuf2_vmalloc videobuf2_memops snd_timer videobuf2_core psmouse videodev drm video wmi snd serio_raw mac_hid i2c_algo_bit lp soundcore parport lpc_ich ahci r8169 libahci mii
[7.2.] Processor information (from /proc/cpuinfo):
annalisa@annalisa-HP-Mini-210-1000:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 28
model name : Intel(R) Atom(TM) CPU N450 @ 1.66GHz
stepping : 10
microcode : 0x105
cpu MHz : 1000.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm
bogomips : 3324.89
clflush size : 64
cache_alignment : 64
address sizes : 32 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 28
model name : Intel(R) Atom(TM) CPU N450 @ 1.66GHz
stepping : 10
microcode : 0x105
cpu MHz : 1000.000
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm
bogomips : 3324.89
clflush size : 64
cache_alignment : 64
address sizes : 32 bits physical, 48 bits virtual
power management:
[7.3.] Module information (from /proc/modules):
annalisa@annalisa-HP-Mini-210-1000:~$ cat /proc/modules
snd_hda_codec_idt 45153 1 - Live 0x00000000
snd_hda_intel 43367 3 - Live 0x00000000
joydev 17299 0 - Live 0x00000000
snd_hda_codec 169632 2 snd_hda_codec_idt,snd_hda_intel, Live 0x00000000
snd_hwdep 13276 1 snd_hda_codec, Live 0x00000000
hp_wmi 17834 0 - Live 0x00000000
sparse_keymap 13658 1 hp_wmi, Live 0x00000000
snd_pcm 90501 2 snd_hda_intel,snd_hda_codec, Live 0x00000000
snd_page_alloc 18398 2 snd_hda_intel,snd_pcm, Live 0x00000000
snd_seq_midi 13132 0 - Live 0x00000000
snd_seq_midi_event 14475 1 snd_seq_midi, Live 0x00000000
parport_pc 32114 0 - Live 0x00000000
snd_rawmidi 25198 1 snd_seq_midi, Live 0x00000000
ppdev 17423 0 - Live 0x00000000
i915 656767 3 - Live 0x00000000
rfcomm 59026 0 - Live 0x00000000
bnep 19143 2 - Live 0x00000000
bluetooth 337865 10 rfcomm,bnep, Live 0x00000000
snd_seq 55716 2 snd_seq_midi,snd_seq_midi_event, Live 0x00000000
drm_kms_helper 47293 1 i915, Live 0x00000000
uvcvideo 72275 0 - Live 0x00000000
snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x00000000
videobuf2_vmalloc 13048 1 uvcvideo, Live 0x00000000
videobuf2_memops 13170 1 videobuf2_vmalloc, Live 0x00000000
snd_timer 28971 2 snd_pcm,snd_seq, Live 0x00000000
videobuf2_core 39479 1 uvcvideo, Live 0x00000000
psmouse 92689 0 - Live 0x00000000
videodev 108525 2 uvcvideo,videobuf2_core, Live 0x00000000
drm 248440 4 i915,drm_kms_helper, Live 0x00000000
video 19046 1 i915, Live 0x00000000
wmi 18827 1 hp_wmi, Live 0x00000000
snd 61311 16 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq_midi,snd_rawmidi,snd_seq,snd_seq_device,snd_timer, Live 0x00000000
serio_raw 13230 0 - Live 0x00000000
mac_hid 13077 0 - Live 0x00000000
i2c_algo_bit 13316 1 i915, Live 0x00000000
lp 13359 0 - Live 0x00000000
soundcore 12600 1 snd, Live 0x00000000
parport 40945 3 parport_pc,ppdev,lp, Live 0x00000000
lpc_ich 16987 0 - Live 0x00000000
ahci 25703 2 - Live 0x00000000
r8169 62775 0 - Live 0x00000000
libahci 30834 1 ahci, Live 0x00000000
mii 13693 1 r8169, Live 0x00000000
[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
annalisa@annalisa-HP-Mini-210-1000:~$ cat /proc/ioports
0000-0cf7 : PCI Bus 0000:00
0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-0060 : keyboard
0062-0062 : EC data
0064-0064 : keyboard
0066-0066 : EC cmd
0070-0077 : rtc0
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0380-0387 : pnp 00:00
0400-0403 : ACPI PM1a_EVT_BLK
0404-0405 : ACPI PM1a_CNT_BLK
0408-040b : ACPI PM_TMR
0410-0415 : ACPI CPU throttle
0420-0420 : ACPI PM2_CNT_BLK
0428-042f : ACPI GPE0_BLK
0430-0433 : iTCO_wdt
0460-047f : iTCO_wdt
0500-053f : pnp 00:00
0600-060f : pnp 00:00
0610-0610 : pnp 00:00
0800-080f : pnp 00:00
0810-0817 : pnp 00:00
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
164e-164f : pnp 00:00
4000-4fff : PCI Bus 0000:02
5000-5fff : PCI Bus 0000:01
5000-50ff : 0000:01:00.0
5000-50ff : r8169
6000-601f : 0000:00:1f.3
6020-603f : 0000:00:1d.3
6020-603f : uhci_hcd
6040-605f : 0000:00:1d.2
6040-605f : uhci_hcd
6060-607f : 0000:00:1d.1
6060-607f : uhci_hcd
6080-609f : 0000:00:1d.0
6080-609f : uhci_hcd
60a0-60af : 0000:00:1f.2
60a0-60af : ahci
60b0-60b7 : 0000:00:1f.2
60b0-60b7 : ahci
60b8-60bf : 0000:00:1f.2
60b8-60bf : ahci
60c0-60c7 : 0000:00:02.0
60c8-60cb : 0000:00:1f.2
60c8-60cb : ahci
60cc-60cf : 0000:00:1f.2
60cc-60cf : ahci
annalisa@annalisa-HP-Mini-210-1000:~$ cat /proc/iomem
00000000-00000fff : reserved
00001000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000e0000-000fffff : reserved
000f0000-000fffff : System ROM
00100000-3f493fff : System RAM
01000000-0168fad6 : Kernel code
0168fad7-019f897f : Kernel data
01adb000-01bcefff : Kernel bss
3f494000-3f575fff : reserved
3f576000-3f5befff : ACPI Non-volatile Storage
3f5bf000-3f5e9fff : reserved
3f5ea000-3f5fefff : ACPI Tables
3f5ff000-3fffffff : reserved
3f800000-3fffffff : Graphics Stolen Memory
40000000-febfffff : PCI Bus 0000:00
40000000-4fffffff : 0000:00:02.0
50000000-50ffffff : PCI Bus 0000:01
50000000-5000ffff : 0000:01:00.0
50000000-5000ffff : r8169
50010000-50010fff : 0000:01:00.0
50010000-50010fff : r8169
50020000-5002ffff : 0000:01:00.0
51000000-51ffffff : PCI Bus 0000:02
52000000-52000fff : Intel Flush Page
52004000-52007fff : i915 MCHBAR
56000000-56ffffff : PCI Bus 0000:02
56000000-56003fff : 0000:02:00.0
57000000-57ffffff : PCI Bus 0000:01
58000000-580fffff : 0000:00:02.0
58100000-5817ffff : 0000:00:02.1
58180000-581fffff : 0000:00:02.0
58200000-58203fff : 0000:00:1b.0
58200000-58203fff : ICH HD audio
58204000-582043ff : 0000:00:1f.2
58204000-582043ff : ahci
58204400-582047ff : 0000:00:1d.7
58204400-582047ff : ehci_hcd
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
e0000000-efffffff : reserved
e0000000-efffffff : pnp 00:00
fec00000-fec00fff : reserved
fec00000-fec003ff : IOAPIC 0
fed00000-fed003ff : HPET 0
fed14000-fed19fff : reserved
fed14000-fed17fff : pnp 00:00
fed18000-fed18fff : pnp 00:00
fed19000-fed19fff : pnp 00:00
fed1c000-fed1ffff : reserved
fed1c000-fed1ffff : pnp 00:00
fed1f410-fed1f414 : iTCO_wdt
fee00000-fee00fff : Local APIC
fee00000-fee00fff : reserved
fee00000-fee00fff : pnp 00:00
ffe00000-ffffffff : reserved
[7.5.] PCI information ('lspci -vvv' as root)
root@annalisa-HP-Mini-210-1000:/home/annalisa# sudo lspci -vvv
00:00.0 Host bridge: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx DMI Bridge
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort+>SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=08 <?>
Kernel driver in use: agpgart-intel
00:02.0 VGA compatible controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 44
Region 0: Memory at 58180000 (32-bit, non-prefetchable) [size=512K]
Region 1: I/O ports at 60c0 [size=8]
Region 2: Memory at 40000000 (32-bit, prefetchable) [size=256M]
Region 3: Memory at 58000000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 41c1
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: i915
00:02.1 Display controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Region 0: Memory at 58100000 (32-bit, non-prefetchable) [size=512K]
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02)
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 45
Region 0: Memory at 58200000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0300c Data: 41d1
Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=1 ArbSelect=Fixed TC/VC=80
Status: NegoPending- InProgress-
Capabilities: [130 v1] Root Complex Link
Desc: PortNumber=0f ComponentID=02 EltType=Config
Link0: Desc: TargetPort=00 TargetComponent=02 AssocRCRB- LinkType=MemMapped LinkValid+
Addr: 00000000fed1c000
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00005000-00005fff
Memory behind bridge: 57000000-57ffffff
Prefetchable memory behind bridge: 0000000050000000-0000000050ffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort->Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <256ns, L1 <4us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
Slot #0, PowerLimit 6.500W; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet- LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 4181
Capabilities: [90] Subsystem: Hewlett-Packard Company Device 3660
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed+ WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable- ID=0 ArbSelect=Fixed TC/VC=00
Status: NegoPending- InProgress-
Capabilities: [180 v1] Root Complex Link
Desc: PortNumber=01 ComponentID=02 EltType=Config
Link0: Desc: TargetPort=00 TargetComponent=02 AssocRCRB- LinkType=MemMapped LinkValid+
Addr: 00000000fed1c001
Kernel driver in use: pcieport
00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: 56000000-56ffffff
Prefetchable memory behind bridge: 0000000051000000-0000000051ffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort->Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #2, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <256ns, L1 <4us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
Slot #1, PowerLimit 6.500W; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 4191
Capabilities: [90] Subsystem: Hewlett-Packard Company Device 3660
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed+ WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed+ WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable- ID=0 ArbSelect=Fixed TC/VC=00
Status: NegoPending- InProgress-
Capabilities: [180 v1] Root Complex Link
Desc: PortNumber=02 ComponentID=02 EltType=Config
Link0: Desc: TargetPort=00 TargetComponent=02 AssocRCRB- LinkType=MemMapped LinkValid+
Addr: 00000000fed1c001
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 02) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at 6080 [size=32]
Kernel driver in use: uhci_hcd
00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #2 (rev 02) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 4: I/O ports at 6060 [size=32]
Kernel driver in use: uhci_hcd
00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3 (rev 02) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at 6040 [size=32]
Kernel driver in use: uhci_hcd
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #4 (rev 02) (prog-if 00 [UHCI])
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 19
Region 4: I/O ports at 6020 [size=32]
Kernel driver in use: uhci_hcd
00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 02) (prog-if 20 [EHCI])
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at 58204400 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Kernel driver in use: ehci-pci
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort->Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [50] Subsystem: Hewlett-Packard Company Device 3660
00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02)
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel driver in use: lpc_ich
00:1f.2 SATA controller: Intel Corporation NM10/ICH7 Family SATA Controller [AHCI mode] (rev 02) (prog-if 01 [AHCI 1.0])
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 43
Region 0: I/O ports at 60b8 [size=8]
Region 1: I/O ports at 60cc [size=4]
Region 2: I/O ports at 60b0 [size=8]
Region 3: I/O ports at 60c8 [size=4]
Region 4: I/O ports at 60a0 [size=16]
Region 5: Memory at 58204000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 41b1
Capabilities: [70] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 02)
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 10
Region 4: I/O ports at 6000 [size=32]
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
Subsystem: Hewlett-Packard Company Device 3660
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 42
Region 0: I/O ports at 5000 [size=256]
Region 2: Memory at 50010000 (64-bit, prefetchable) [size=4K]
Region 4: Memory at 50000000 (64-bit, prefetchable) [size=64K]
Expansion ROM at 50020000 [disabled] [size=64K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0300c Data: 41a1
Capabilities: [70] Express (v2) Endpoint, MSI 01
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <128ns, L1 <2us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 4096 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [ac] MSI-X: Enable- Count=2 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00000800
Capabilities: [cc] Vital Product Data
Unknown small resource type 00, will not decode more.
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr+ BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00
Kernel driver in use: r8169
02:00.0 Network controller: Broadcom Corporation BCM43225 802.11b/g/n (rev 01)
Subsystem: Hewlett-Packard Company Device 145e
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort- <TAbort- <MAbort->SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 10
Region 0: Memory at 56000000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=2 PME-
Capabilities: [58] Vendor Specific Information: Len=78 <?>
Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [d0] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <4us, L1 <64us
ClockPM+ Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 14, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [13c v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 00-00-fe-ff-ff-00-c4-17
Capabilities: [16c v1] Power Budgeting <?>
[7.6.] SCSI information (from /proc/scsi/scsi)
annalisa@annalisa-HP-Mini-210-1000:~$ cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: ST9250410AS Rev: 0006
Type: Direct-Access ANSI SCSI revision: 05
[7.7.] Other information that might be relevant to the problem (please
look in /proc and include all information that you think to be
relevant):
annalisa@annalisa-HP-Mini-210-1000:~$ ls /proc
1 1587 1721 1889 219 36 885 fb sched_debug
10 1591 1726 1890 22 37 891 filesystems schedstat
1016 1594 1737 1891 220 4 9 fs scsi
11 16 1741 1893 2210 469 926 interrupts self
1121 1602 1742 1895 224 49 933 iomem slabinfo
1133 1614 1750 19 227 5 950 ioports softirqs
114 1622 1752 1961 23 52 953 irq stat
1141 1626 1769 1966 245 568 957 kallsyms swaps
1155 1640 1770 1968 246 575 985 kcore sys
1161 1642 1773 1971 25 580 989 key-users sysrq-trigger
12 1647 1774 2 2568 581 991 kmsg sysvipc
1276 1652 1776 20 26 598 acpi kpagecount timer_list
13 1653 1778 2000 2612 603 asound kpageflags timer_stats
14 1654 1781 2001 27 616 buddyinfo latency_stats tty
1403 1655 1782 2034 28 621 bus loadavg uptime
1408 1669 18 2035 3 625 cgroups locks version
1449 1674 1815 2042 30 7 cmdline mdstat vmallocinfo
15 1686 1832 2043 31 71 consoles meminfo vmstat
1512 1689 1839 2093 32 72 cpuinfo misc zoneinfo
1522 1693 1848 21 33 744 crypto modules
1571 1697 1855 2101 331 774 devices mounts
1572 17 1862 2102 34 8 diskstats mtrr
1573 1704 1871 217 342 801 dma net
1576 1709 1877 2171 344 820 driver pagetypeinfo
1577 1716 1888 218 35 847 execdomains partitions
i have this problem from 10.04 to 13.10 & with all kernels until lastest version of mainline kernel 3.12.rc3.
i have already post a report inside the Ubuntu launchpad (_https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1188965) and don't solve the problem, Christopher M.Penalver (penalvch) say to me contact you.
the correct model of this pc is: HP MINI 210-1010sl
------>installation log:
annalisa@annalisa-HP-Mini-210-1000:~/Scaricati$ sudo dpkg -i *.debSelezionato il pacchetto linux-headers-3.12.0-031200rc3 non precedentemente selezionato.
(Lettura del database... 349315 file e directory attualmente installati.)
Estrazione di linux-headers-3.12.0-031200rc3 (da linux-headers-3.12.0-031200rc3_3.12.0-031200rc3.201309291835_all.deb)...
Selezionato il pacchetto linux-headers-3.12.0-031200rc3-generic non precedentemente selezionato.
Estrazione di linux-headers-3.12.0-031200rc3-generic (da linux-headers-3.12.0-031200rc3-generic_3.12.0-031200rc3.201309291835_i386.deb)...
Selezionato il pacchetto linux-image-3.12.0-031200rc3-generic non precedentemente selezionato.
Estrazione di linux-image-3.12.0-031200rc3-generic (da linux-image-3.12.0-031200rc3-generic_3.12.0-031200rc3.201309291835_i386.deb)...
Done.
Configurazione di linux-headers-3.12.0-031200rc3 (3.12.0-031200rc3.201309291835)...
Configurazione di linux-headers-3.12.0-031200rc3-generic (3.12.0-031200rc3.201309291835)...
Examining /etc/kernel/header_postinst.d.
run-parts: executing /etc/kernel/header_postinst.d/dkms 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
Error! Bad return status for module build on kernel: 3.12.0-031200rc3-generic (i686)
Consult /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/make.log for more information.
Configurazione di linux-image-3.12.0-031200rc3-generic (3.12.0-031200rc3.201309291835)...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
run-parts: executing /etc/kernel/postinst.d/dkms 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
Error! Bad return status for module build on kernel: 3.12.0-031200rc3-generic (i686)
Consult /var/lib/dkms/bcmwl/6.20.155.1+bdcom/build/make.log for more information.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
update-initramfs: Generating /boot/initrd.img-3.12.0-031200rc3-generic
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168g-3.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8106e-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8411-2.fw for module r8169
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
Creazione di grub.cfg...
Trovata immagine linux: /boot/vmlinuz-3.12.0-031200rc3-generic
Trovata immagine initrd: /boot/initrd.img-3.12.0-031200rc3-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-31-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-31-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-30-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-30-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-29-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-29-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-27-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-27-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-26-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-26-generic
Found memtest86+ image: /boot/memtest86+.bin
Trovato Windows 7 (loader) su /dev/sda1
fatto
annalisa@annalisa-HP-Mini-210-1000:~/Scaricati$
------>removing the kernel:
annalisa@annalisa-HP-Mini-210-1000:~$ sudo apt-get purge linux-image-3.12.0-031200rc3-generic
Lettura elenco dei pacchetti... Fatto
Generazione albero delle dipendenze
Lettura informazioni sullo stato... Fatto
I seguenti pacchetti saranno RIMOSSI:
linux-image-3.12.0-031200rc3-generic*
0 aggiornati, 0 installati, 1 da rimuovere e 2 non aggiornati.
Dopo quest'operazione, verranno liberati 134 MB di spazio su disco.
Continuare [S/n]? s
(Lettura del database... 378919 file e directory attualmente installati.)
Rimozione di linux-image-3.12.0-031200rc3-generic...
WARN: Proceeding with removing running kernel image.
Examining /etc/kernel/prerm.d.
run-parts: executing /etc/kernel/prerm.d/dkms 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
update-initramfs: Deleting /boot/initrd.img-3.12.0-031200rc3-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
Creazione di grub.cfg...
Trovata immagine linux: /boot/vmlinuz-3.8.0-31-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-31-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-30-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-30-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-29-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-29-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-27-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-27-generic
Trovata immagine linux: /boot/vmlinuz-3.8.0-26-generic
Trovata immagine initrd: /boot/initrd.img-3.8.0-26-generic
Found memtest86+ image: /boot/memtest86+.bin
Trovato Windows 7 (loader) su /dev/sda1
fatto
The link /vmlinuz is a damaged link
Removing symbolic link vmlinuz
you may need to re-run your boot loader[grub]
The link /initrd.img is a damaged link
Removing symbolic link initrd.img
you may need to re-run your boot loader[grub]
Eliminazione dei file di configurazione di linux-image-3.12.0-031200rc3-generic...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.12.0-031200rc3-generic /boot/vmlinuz-3.12.0-031200rc3-generic
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^ permalink raw reply
* Re: New USB core API to change interval and max packet size
From: Mauro Carvalho Chehab @ 2013-10-02 17:11 UTC (permalink / raw)
To: Alan Stern
Cc: Sarah Sharp, Xenia Ragiadakou, linux-usb, linux-input,
linux-media
In-Reply-To: <Pine.LNX.4.44L0.1310021234510.1293-100000@iolanthe.rowland.org>
Em Wed, 02 Oct 2013 12:38:14 -0400 (EDT)
Alan Stern <stern@rowland.harvard.edu> escreveu:
> On Wed, 2 Oct 2013, Mauro Carvalho Chehab wrote:
>
> > > > So, there's no need to call usb_change_ep_bandwidth().
> > >
> > > That's right.
> > >
> > > > If so, then usb_change_ep_bandwidth() as a quirk, if bInterval
> > > > or wMaxPacketSize were improperly filled.
> > > >
> > > > Right?
> > >
> > > Or if the values are correct, but the driver wants to use something
> > > different for its own reasons (for example, to get lower latency or
> > > because it knows that it will never use packets as large as the
> > > descriptor allows). Right.
> >
> > Ok, so, in this case, usb_change_ep_bandwidth() could be called
> > just before usb_alloc_urb(), in order to make it to use the packet
> > size that would be expected for that kind of ISOC traffic that
> > userspace indirectly selected, by adjusting the streaming
> > video resolution selected, right?
>
> We haven't decided on the final API yet. However, note that
> usb_alloc_urb() doesn't depend on the packet size. It requires you to
> specify only the number of packets, not their sizes. Therefore it
> doesn't matter whether you call usb_change_ep_bandwidth() before or
> after usb_alloc_urb().
Sure, but, at least on almost all V4L2 drivers, the number of packets
and their sizes should be calculated to be able to receive all URBs
needed to store a complete image frame (that generally arrives on
every 1/60 Hz or 1/50 Hz - depending on the frames per second rate).
On those drivers, the transfer_buffer is allocated at the same loop
where usb_alloc_urb() is called.
So, it makes sense for them to specify the bandwidth parameters at
the function that calls usb_alloc_coherent() and usb_alloc_urb().
Regards,
Mauro
^ permalink raw reply
* Re: New USB core API to change interval and max packet size
From: Alan Stern @ 2013-10-02 16:38 UTC (permalink / raw)
To: Mauro Carvalho Chehab
Cc: Sarah Sharp, Xenia Ragiadakou, linux-usb-u79uwXL29TY76Z2rM5mHXA,
linux-input-u79uwXL29TY76Z2rM5mHXA,
linux-media-u79uwXL29TY76Z2rM5mHXA
In-Reply-To: <20131002131550.38f90611-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
On Wed, 2 Oct 2013, Mauro Carvalho Chehab wrote:
> > > So, there's no need to call usb_change_ep_bandwidth().
> >
> > That's right.
> >
> > > If so, then usb_change_ep_bandwidth() as a quirk, if bInterval
> > > or wMaxPacketSize were improperly filled.
> > >
> > > Right?
> >
> > Or if the values are correct, but the driver wants to use something
> > different for its own reasons (for example, to get lower latency or
> > because it knows that it will never use packets as large as the
> > descriptor allows). Right.
>
> Ok, so, in this case, usb_change_ep_bandwidth() could be called
> just before usb_alloc_urb(), in order to make it to use the packet
> size that would be expected for that kind of ISOC traffic that
> userspace indirectly selected, by adjusting the streaming
> video resolution selected, right?
We haven't decided on the final API yet. However, note that
usb_alloc_urb() doesn't depend on the packet size. It requires you to
specify only the number of packets, not their sizes. Therefore it
doesn't matter whether you call usb_change_ep_bandwidth() before or
after usb_alloc_urb().
Alan Stern
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^ permalink raw reply
* [PATCH] Input: move name/timer init to input_alloc_dev()
From: David Herrmann @ 2013-10-02 16:27 UTC (permalink / raw)
To: linux-input; +Cc: Dmitry Torokhov, David Herrmann
We want to allow drivers to call input_event() at any time after the
device got allocated. This means input_event() and input_register_device()
must be allowed to run in parallel.
The only conflicting calls in input_register_device() are init_timer() and
dev_set_name(). Both can safely be moved to device allocation and we're
good to go.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
drivers/input/input.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index c044699..e75d015 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1734,6 +1734,7 @@ EXPORT_SYMBOL_GPL(input_class);
*/
struct input_dev *input_allocate_device(void)
{
+ static atomic_t input_no = ATOMIC_INIT(0);
struct input_dev *dev;
dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
@@ -1743,9 +1744,13 @@ struct input_dev *input_allocate_device(void)
device_initialize(&dev->dev);
mutex_init(&dev->mutex);
spin_lock_init(&dev->event_lock);
+ init_timer(&dev->timer);
INIT_LIST_HEAD(&dev->h_list);
INIT_LIST_HEAD(&dev->node);
+ dev_set_name(&dev->dev, "input%ld",
+ (unsigned long) atomic_inc_return(&input_no) - 1);
+
__module_get(THIS_MODULE);
}
@@ -2019,7 +2024,6 @@ static void devm_input_device_unregister(struct device *dev, void *res)
*/
int input_register_device(struct input_dev *dev)
{
- static atomic_t input_no = ATOMIC_INIT(0);
struct input_devres *devres = NULL;
struct input_handler *handler;
unsigned int packet_size;
@@ -2059,7 +2063,6 @@ int input_register_device(struct input_dev *dev)
* If delay and period are pre-set by the driver, then autorepeating
* is handled by the driver itself and we don't do it in input.c.
*/
- init_timer(&dev->timer);
if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) {
dev->timer.data = (long) dev;
dev->timer.function = input_repeat_key;
@@ -2073,9 +2076,6 @@ int input_register_device(struct input_dev *dev)
if (!dev->setkeycode)
dev->setkeycode = input_default_setkeycode;
- dev_set_name(&dev->dev, "input%ld",
- (unsigned long) atomic_inc_return(&input_no) - 1);
-
error = device_add(&dev->dev);
if (error)
goto err_free_vals;
--
1.8.4
^ permalink raw reply related
* Re: New USB core API to change interval and max packet size
From: Mauro Carvalho Chehab @ 2013-10-02 16:15 UTC (permalink / raw)
To: Alan Stern
Cc: Sarah Sharp, Xenia Ragiadakou, linux-usb, linux-input,
linux-media
In-Reply-To: <Pine.LNX.4.44L0.1310021057250.1293-100000@iolanthe.rowland.org>
Em Wed, 02 Oct 2013 11:00:13 -0400 (EDT)
Alan Stern <stern@rowland.harvard.edu> escreveu:
> On Wed, 2 Oct 2013, Mauro Carvalho Chehab wrote:
>
> > Let me see if I understand the changes at the media drivers. So, please
> > correct me if I got it wrong.
> >
> > I'm yet to get any USB 3.0 media device, although it is common to connect
> > an USB 1.1 or USB 2.0 device on a USB 3.0 host port.
> >
> > So, for example, on this device:
>
> > ...
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x83 EP 3 IN
> > bmAttributes 3
> > Transfer Type Interrupt
> > Synch Type None
> > Usage Type Data
> > wMaxPacketSize 0x0004 1x 4 bytes
> > bInterval 1
> > ...
> >
> > connected via this BUS device:
>
> ...
>
> > In such situation, and assuming that the USB tables are correct, there's
> > nothing that needs to be done there, as bInterval/wMaxPacketSize are
> > correct for USB 2.0.
> >
> > So, there's no need to call usb_change_ep_bandwidth().
>
> That's right.
>
> > If so, then usb_change_ep_bandwidth() as a quirk, if bInterval
> > or wMaxPacketSize were improperly filled.
> >
> > Right?
>
> Or if the values are correct, but the driver wants to use something
> different for its own reasons (for example, to get lower latency or
> because it knows that it will never use packets as large as the
> descriptor allows). Right.
Ok, so, in this case, usb_change_ep_bandwidth() could be called
just before usb_alloc_urb(), in order to make it to use the packet
size that would be expected for that kind of ISOC traffic that
userspace indirectly selected, by adjusting the streaming
video resolution selected, right?
Regards,
Mauro
^ permalink raw reply
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