[PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7

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* [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7
@ 2015-08-11 10:50 Dmitry Tunin
  2015-08-11 12:52 ` Dmitry Tunin
  2015-08-11 19:23 ` Marcel Holtmann
  0 siblings, 2 replies; 6+ messages in thread
From: Dmitry Tunin @ 2015-08-11 10:50 UTC (permalink / raw)
  To: Marcel Holtmann, Gustavo Padovan, Johan Hedberg, linux-bluetooth
  Cc: linux-kernel, Dmitry Tunin, stable

This patch causes infinite loop on loading firmware on Acer Aspire
V3è371-31KW and probably other laptops.

This is a serious regression, because system becomes unresponsive.

This should be reverted until the firmware loading issue is sorted out.

Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
Cc: stable@vger.kernel.org
---
 drivers/bluetooth/ath3k.c | 2 --
 drivers/bluetooth/btusb.c | 1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index e527a3e..2fa6588 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -89,7 +89,6 @@ static const struct usb_device_id ath3k_table[] = {
 	{ USB_DEVICE(0x04CA, 0x3007) },
 	{ USB_DEVICE(0x04CA, 0x3008) },
 	{ USB_DEVICE(0x04CA, 0x300b) },
-	{ USB_DEVICE(0x04CA, 0x300d) },
 	{ USB_DEVICE(0x04CA, 0x300f) },
 	{ USB_DEVICE(0x04CA, 0x3010) },
 	{ USB_DEVICE(0x0930, 0x0219) },
@@ -149,7 +148,6 @@ static const struct usb_device_id ath3k_blist_tbl[] = {
 	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
-	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index cc92b0f..73e3b7c 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -191,7 +191,6 @@ static const struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
-	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7
  2015-08-11 10:50 [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7 Dmitry Tunin
@ 2015-08-11 12:52 ` Dmitry Tunin
  2015-08-11 19:23 ` Marcel Holtmann
  1 sibling, 0 replies; 6+ messages in thread
From: Dmitry Tunin @ 2015-08-11 12:52 UTC (permalink / raw)
  To: Marcel Holtmann, Gustavo Padovan, Johan Hedberg, linux-bluetooth
  Cc: linux-kernel, stable



11.08.2015 13:50, Dmitry Tunin пишет:
> This patch causes infinite loop on loading firmware on Acer Aspire
> V3è371-31KW and probably other laptops.
> 
> This is a serious regression, because system becomes unresponsive.
> 
> This should be reverted until the firmware loading issue is sorted out.
> 
> Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
> Cc: stable@vger.kernel.org
> ---
>  drivers/bluetooth/ath3k.c | 2 --
>  drivers/bluetooth/btusb.c | 1 -
>  2 files changed, 3 deletions(-)
> 
> diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
> index e527a3e..2fa6588 100644
> --- a/drivers/bluetooth/ath3k.c
> +++ b/drivers/bluetooth/ath3k.c
> @@ -89,7 +89,6 @@ static const struct usb_device_id ath3k_table[] = {
>  	{ USB_DEVICE(0x04CA, 0x3007) },
>  	{ USB_DEVICE(0x04CA, 0x3008) },
>  	{ USB_DEVICE(0x04CA, 0x300b) },
> -	{ USB_DEVICE(0x04CA, 0x300d) },
>  	{ USB_DEVICE(0x04CA, 0x300f) },
>  	{ USB_DEVICE(0x04CA, 0x3010) },
>  	{ USB_DEVICE(0x0930, 0x0219) },
> @@ -149,7 +148,6 @@ static const struct usb_device_id ath3k_blist_tbl[] = {
>  	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
> -	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index cc92b0f..73e3b7c 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -191,7 +191,6 @@ static const struct usb_device_id blacklist_table[] = {
>  	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
> -	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
>  	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
> 

I just got a response that kernel 4.2rc6 is affected by this regression.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7
  2015-08-11 10:50 [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7 Dmitry Tunin
  2015-08-11 12:52 ` Dmitry Tunin
@ 2015-08-11 19:23 ` Marcel Holtmann
  2015-08-11 19:43   ` Dmitry Tunin
  1 sibling, 1 reply; 6+ messages in thread
From: Marcel Holtmann @ 2015-08-11 19:23 UTC (permalink / raw)
  To: Dmitry Tunin
  Cc: Gustavo F. Padovan, Johan Hedberg, linux-bluetooth, linux-kernel,
	stable

Hi Dmitry,

> This patch causes infinite loop on loading firmware on Acer Aspire
> V3è371-31KW and probably other laptops.
> 
> This is a serious regression, because system becomes unresponsive.
> 
> This should be reverted until the firmware loading issue is sorted out.

this needs a lot more explanation on why I am suppose to revert this now.

And now I am really reluctant to have any ath3k patches marked as stable. If things are not tested properly, then please refrain from adding stable tags since these are clearly more than just VID/PID additions.

Regards

Marcel


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7
  2015-08-11 19:23 ` Marcel Holtmann
@ 2015-08-11 19:43   ` Dmitry Tunin
  2015-08-11 19:54     ` Dmitry Tunin
  0 siblings, 1 reply; 6+ messages in thread
From: Dmitry Tunin @ 2015-08-11 19:43 UTC (permalink / raw)
  To: Marcel Holtmann
  Cc: Gustavo F. Padovan, Johan Hedberg, linux-bluetooth, linux-kernel,
	stable

11.08.2015 22:23, Marcel Holtmann пишет:
> Hi Dmitry,
> 
>> This patch causes infinite loop on loading firmware on Acer Aspire
>> V3è371-31KW and probably other laptops.
>>
>> This is a serious regression, because system becomes unresponsive.
>>
>> This should be reverted until the firmware loading issue is sorted out.
> 
> this needs a lot more explanation on why I am suppose to revert this now.
> 
> And now I am really reluctant to have any ath3k patches marked as stable. If things are not tested properly, then please refrain from adding stable tags since these are clearly more than just VID/PID additions.
> 
> Regards
> 
> Marcel
> 

Here is the explanation.

This is a report I got from a user. He tried to write you too, but did not get a response.

------------------------------quote-----------------------------

However, the same patch makes the same device enter a disconnect /
reconnect infinite loop in my specific laptop model (Acer Aspire
V3è371-31KW). The original poster of the duplicate, #1397885, also has
an Acer Aspire and might be affected by the same issue (not sure about
it). Sorry about commenting the duplicate if it was wrong.

On my laptop, the patch makes the firmware load into the device and it
begins an infinite disconnect/reconnect cycle. The boot makes ages,
lsusb freezes.

Under your kernel, the whole computer runs unstable. the login manager
and X won't always start, the system takes ages to start, lsusb feezes
and I get a log of the following with journalctl -xe.

  mai 02 19:21:00 white kernel: usb 1-5: new full-speed USB device
number 49 using xhci_hcd
mai 02 19:21:01 white kernel: usb 1-5: New USB device found,
idVendor=04ca, idProduct=300d
mai 02 19:21:01 white kernel: usb 1-5: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
mai 02 19:21:01 white kernel: usb 1-5: USB disconnect, device number 49
mai 02 19:21:01 white kernel: usb 1-5: new full-speed USB device number
50 using xhci_hcd
mai 02 19:21:01 white kernel: usb 1-5: New USB device found,
idVendor=04ca, idProduct=300d
mai 02 19:21:01 white kernel: usb 1-5: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
mai 02 19:21:01 white kernel: usb 1-5: USB disconnect, device number 50
mai 02 19:21:01 white kernel: usb 1-5: new full-speed USB device number
51 using xhci_hcd
mai 02 19:21:02 white kernel: usb 1-5: New USB device found,
idVendor=04ca, idProduct=300d
mai 02 19:21:02 white kernel: usb 1-5: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
mai 02 19:21:02 white kernel: usb 1-5: USB disconnect, device number 51
mai 02 19:21:02 white kernel: usb 1-5: new full-speed USB device number
52 using xhci_hcd
mai 02 19:21:02 white kernel: usb 1-5: New USB device found,
idVendor=04ca, idProduct=300d
mai 02 19:21:02 white kernel: usb 1-5: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
mai 02 19:21:02 white kernel: usb 1-5: USB disconnect, device number 52
mai 02 19:21:03 white kernel: usb 1-5: new full-speed USB device number
53 using xhci_hcd
mai 02 19:21:03 white kernel: usb 1-5: New USB device found,
idVendor=04ca, idProduct=300d
mai 02 19:21:03 white kernel: usb 1-5: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
mai 02 19:21:03 white kernel: usb 1-5: USB disconnect, device number 53
mai 02 19:21:03 white kernel: usb 1-5: new full-speed USB device number
54 using xhci_hcd
mai 02 19:21:03 white kernel: usb 1-5: New USB device found,
idVendor=04ca, idProduct=300d
mai 02 19:21:03 white kernel: usb 1-5: New USB device strings: Mfr=0,
Product=0, SerialNumber=0"

I made a workaround which makes the device work by loading the patched
modules, unload them and load the unpatched ones. The firmware being
loaded, the unpatched modules are able to drive the device.

I sent a mail to the Bluetooth maintainer's mailing list last month, but
for some reasons, it might have been unnoticed, I didn't received any reply.

I'm concerned for unexperienced users of this computer getting trouble
with new kernels. If I can help, don't hesitate to ask me any
information about by laptop.

Cheers,
Raphaël.

----------------------end of quote----------------------------------

I told him to write directly to maintainers and it seem that he has done it.

Before I got responses that the patch worked well. I sent it to you when it was tested by two users.

This issue is really weird, because it appears only on some laptops.
Maybe it is related to the new Atheros firmware files, that can't be loaded properly in certain cases.

It's up to you to decide if marking for stable is appropriate, but before all AR devices ran smoothly and there seemed to be no 
reason not to add them for stable.

I suggest a compromise. Not to add those devices that require the new firmware, because its loading really is not tested well.
If some older devices are discovered, it is very unlikely that there may be any troubles.

I know that it is a pain in the ass to revert it from stable.

Another option is to leave it there, because probably if the firmware is not added, ath3k will just fail to find it and will not cause any trouble.
The new firmware has not been added to linux-firmware yet.

But in this case any time the regression may appear as soon as they add it there. It seems not to be a good idea either.

Regards,

Dmitry

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7
  2015-08-11 19:43   ` Dmitry Tunin
@ 2015-08-11 19:54     ` Dmitry Tunin
  2015-08-11 19:59       ` Dmitry Tunin
  0 siblings, 1 reply; 6+ messages in thread
From: Dmitry Tunin @ 2015-08-11 19:54 UTC (permalink / raw)
  To: Marcel Holtmann
  Cc: Gustavo F. Padovan, Johan Hedberg, linux-bluetooth, linux-kernel,
	stable



11.08.2015 22:43, Dmitry Tunin пишет:
> 
> 
> 11.08.2015 22:23, Marcel Holtmann пишет:
>> Hi Dmitry,
>>
>>> This patch causes infinite loop on loading firmware on Acer Aspire
>>> V3è371-31KW and probably other laptops.
>>>
>>> This is a serious regression, because system becomes unresponsive.
>>>
>>> This should be reverted until the firmware loading issue is sorted out.
>>
>> this needs a lot more explanation on why I am suppose to revert this now.
>>
>> And now I am really reluctant to have any ath3k patches marked as stable. If things are not tested properly, then please refrain from adding stable tags since these are clearly more than just VID/PID additions.
>>
>> Regards
>>
>> Marcel
>>
> 
> Here is the explanation.
> 
> This is a report I got from a user. He tried to write you too, but did not get a response.
> 
> ------------------------------quote-----------------------------
> 
> However, the same patch makes the same device enter a disconnect /
> reconnect infinite loop in my specific laptop model (Acer Aspire
> V3è371-31KW). The original poster of the duplicate, #1397885, also has
> an Acer Aspire and might be affected by the same issue (not sure about
> it). Sorry about commenting the duplicate if it was wrong.
> 
> On my laptop, the patch makes the firmware load into the device and it
> begins an infinite disconnect/reconnect cycle. The boot makes ages,
> lsusb freezes.
> 
> Under your kernel, the whole computer runs unstable. the login manager
> and X won't always start, the system takes ages to start, lsusb feezes
> and I get a log of the following with journalctl -xe.
> 
>   mai 02 19:21:00 white kernel: usb 1-5: new full-speed USB device
> number 49 using xhci_hcd
> mai 02 19:21:01 white kernel: usb 1-5: New USB device found,
> idVendor=04ca, idProduct=300d
> mai 02 19:21:01 white kernel: usb 1-5: New USB device strings: Mfr=0,
> Product=0, SerialNumber=0
> mai 02 19:21:01 white kernel: usb 1-5: USB disconnect, device number 49
> mai 02 19:21:01 white kernel: usb 1-5: new full-speed USB device number
> 50 using xhci_hcd
> mai 02 19:21:01 white kernel: usb 1-5: New USB device found,
> idVendor=04ca, idProduct=300d
> mai 02 19:21:01 white kernel: usb 1-5: New USB device strings: Mfr=0,
> Product=0, SerialNumber=0
> mai 02 19:21:01 white kernel: usb 1-5: USB disconnect, device number 50
> mai 02 19:21:01 white kernel: usb 1-5: new full-speed USB device number
> 51 using xhci_hcd
> mai 02 19:21:02 white kernel: usb 1-5: New USB device found,
> idVendor=04ca, idProduct=300d
> mai 02 19:21:02 white kernel: usb 1-5: New USB device strings: Mfr=0,
> Product=0, SerialNumber=0
> mai 02 19:21:02 white kernel: usb 1-5: USB disconnect, device number 51
> mai 02 19:21:02 white kernel: usb 1-5: new full-speed USB device number
> 52 using xhci_hcd
> mai 02 19:21:02 white kernel: usb 1-5: New USB device found,
> idVendor=04ca, idProduct=300d
> mai 02 19:21:02 white kernel: usb 1-5: New USB device strings: Mfr=0,
> Product=0, SerialNumber=0
> mai 02 19:21:02 white kernel: usb 1-5: USB disconnect, device number 52
> mai 02 19:21:03 white kernel: usb 1-5: new full-speed USB device number
> 53 using xhci_hcd
> mai 02 19:21:03 white kernel: usb 1-5: New USB device found,
> idVendor=04ca, idProduct=300d
> mai 02 19:21:03 white kernel: usb 1-5: New USB device strings: Mfr=0,
> Product=0, SerialNumber=0
> mai 02 19:21:03 white kernel: usb 1-5: USB disconnect, device number 53
> mai 02 19:21:03 white kernel: usb 1-5: new full-speed USB device number
> 54 using xhci_hcd
> mai 02 19:21:03 white kernel: usb 1-5: New USB device found,
> idVendor=04ca, idProduct=300d
> mai 02 19:21:03 white kernel: usb 1-5: New USB device strings: Mfr=0,
> Product=0, SerialNumber=0"
> 
> I made a workaround which makes the device work by loading the patched
> modules, unload them and load the unpatched ones. The firmware being
> loaded, the unpatched modules are able to drive the device.
> 
> I sent a mail to the Bluetooth maintainer's mailing list last month, but
> for some reasons, it might have been unnoticed, I didn't received any reply.
> 
> I'm concerned for unexperienced users of this computer getting trouble
> with new kernels. If I can help, don't hesitate to ask me any
> information about by laptop.
> 
> Cheers,
> Raphaël.
> 
> ----------------------end of quote----------------------------------
> 
> I told him to write directly to maintainers and it seem that he has done it.
> 
> Before I got responses that the patch worked well. I sent it to you when it was tested by two users.
> 
> This issue is really weird, because it appears only on some laptops.
> Maybe it is related to the new Atheros firmware files, that can't be loaded properly in certain cases.
> 
> It's up to you to decide if marking for stable is appropriate, but before all AR devices ran smoothly and there seemed to be no 
> reason not to add them for stable.
> 
> I suggest a compromise. Not to add those devices that require the new firmware, because its loading really is not tested well.
> If some older devices are discovered, it is very unlikely that there may be any troubles.
> 
> I know that it is a pain in the ass to revert it from stable.
> 
> Another option is to leave it there, because probably if the firmware is not added, ath3k will just fail to find it and will not cause any trouble.
> The new firmware has not been added to linux-firmware yet.
> 
> But in this case any time the regression may appear as soon as they add it there. It seems not to be a good idea either.
> 
> Regards,
> 
> Dmitry
> 

And in addition I am adding a very good desription by Raphael

This is a workaround to make Bluetooth working on some computers
like Acer Aspire V3-371.

This WILL NOT FIX your problem reliably, so please stay tuned by writing an email
to raphael dot jakse at gmail dot com if you choose to skip the following
introduction (what you *should not* do).

This workaround has only been tested in Mint Linux and should apply to Ubuntu,
Debian and other Debian-like system as well. For other systems, some adaptations
might be necessary. Please ask if you need help for this.

0) INTRODUCTION

    a) PREREQUISITES: MINI HOW-TO FOR USING A TERMINAL

    If you know how to use a terminal, please skip this section.

    In order to test and install this workaround, it is necessary to know how to
    run commands in a terminal. If you don't, you should get help from somebody
    who does. Nonetheless, here is a basic introduction to using a terminal if
    you which to go by yourself.

    To open a terminal, find a terminal application in the menus of your
    computer. It is often in a "Accessories" or a "System" menu.

    Running a command basically means copy it in your terminal and then press
    the Enter key.

    The ls command shows the contents of the directory inside which the terminal
    is. To go to another directory named my_directory, use the the following
    command:

        cd my_directory

    To go back to the parent directory, run:

        cd ..

    For this workaround, the easiest way to open the terminal is to go to open
    the directory which was extracted from the archive you downloaded, right
    click on a blank area and choose an option like "Open a terminal here",
    maybe in an "actions" submenu, if this option exists.

    b) What is a workaround

    A workaround is a temporary fix to a problem. What is really important to
    understand is that it doesn't really fix the cause of the problem.

    So this workaround is unreliable in the long run. It can prevent Bluetooth
    from working in the long term on your computer if you upgrade it to a more
    recent system which fixes (or not) the problem, without uninstalling this
    workaround.

    This is why it is *important you stay tuned* by subscribing to the
    corresponding bug report or, at least, by writing an email to raphael dot
    jakse at gmail dot com so you can get information so everything goes well.

    DISCLAIMER: No guarantee or support can be given for this workaround. That
    said, this workaround should cause no harm to your system and does nothing
    dangerous. Anything it does can be reverted. If you are not sure, please ask
    help to someone who is likely more at ease than you for this kind of
    problems. If you have any question, don't hesitate to ask to the author of
    this workaround at the email address given in the previous paragraph.

    Please report any problem or any success with this workaround. I would be
    glad to hear about it and fix anything within the realms of possibility.

1) SYMPTOMS

    In this section, we check whether this workaround can help you. Your
    situation should be the following:

    a) The Bluetooth icon appears on the system but no Bluetooth device can be
    discovered, and other Bluetooth devices don't see the computer even though
    your Bluetooth adapter seems to be recognized

    ==== OR, on very new Linux systems (after Spring of 2015) ====

    b) The computer takes ages to start, and Bluetooth isn't working.

    If your computer has one of these symptoms, it is likely this workaround is
    for you.

2) CHECKING MORE SERIOUSLY THAT YOU ARE CONCERNED

    a) First, in a terminal, please run the following two commands:

        sudo modprobe -r btusb

        sudo modprobe -r ath3k

    These commands unload the kernel modules which handle the device. This is
    not strictly mandatory, but in newest kernel, as of summer 2015, the
    following lsusb command takes forever (it never ends) if you don't.

    b) Then, please run:

        lsusb | grep 04ca:300d

    It should output something like:

        ------
        Bus 001 Device 084: ID 04ca:300d Lite-On Technology Corp.
        ------

    Numbers after "Bus" and "Device" probably don't matter. The "04ca:300d" is
    important, "Lite-On Technology Corp" also probably. This is your faulty
    Bluetooth card. However, if the command don't output anything, stop here,
    you are probably not concerned by this workaround in its current form.
    Please leave a bug report in your distribution's bug tracking system.

3) TESTING THE WORKAROUND

    In order to test the workaround, open a terminal in the folder where
    you downloaded and extracted the workaround and run:

        ./run.sh

    If it asks you to install something:

        Your kernel's headers are not installed, trying to install them.
        [sudo] password for your_name:


    Please input your password and press enter. Please be aware that nothing is
    shown in the terminal while your enter your password. Then, please enter
    another time and it asks confirmation.


    Wait for the command to end. It should take 2 seconds and a bit. When it
    completes, you can test your Bluetooth. If it succeeds, you got lucky, the
    workaround works in your case. So you can try to install it.

4) INSTALLING THE WORKAROUND

    In order to test the workaround, open a terminal and go to the folder where
    you downloaded and extracted the workaround.

        ./install.sh

    It should apply the workaround each time your computer is turned on and after
    each suspend. If this doesn't work, please drop me an email so I'm aware of
    the problem.


5) UNDESTANDING THE WORKAROUND

    If you are interested in how this workaround works, please keep reading.

    Recently, a patch has been written by Pilot6 (https://launchpad.net/~hanipouspilot)
    in order to support our Bluetooth card. However, at least on some system,
    this makes the card disconnect and reconnect indefinitely (which cause the
    Bluetooth not working, the lsusb command to hang and the system to take ages
    to boot).

    However, it  makes the card work after reboot on a kernel which doesn't
    contain the patch. It is likely because the patch allows the firmware of the
    card to be loaded, which the unpatched driver probably doesn't do. The
    unpatched driver is then able to drive the card after a reboot.

    This workaround loads the patched driver (kernel module) for two seconds,
    then unloads them and load the unpatched driver. It is necessary to apply
    this workaround when starting the system and after suspend.

    The cause of the disconnect-reconnect loop is still unknown as of the
    publication of this workaround and still needs to be worked out.

6) CONTACT

    Raphaël JAKSE: raphael dot jakse at gmail dot com

    Relevant bug report, for more details and to stay tuned (you should indicate
    that you are affected by the bug and subscribe for updates):

        https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1397885

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7
  2015-08-11 19:54     ` Dmitry Tunin
@ 2015-08-11 19:59       ` Dmitry Tunin
  0 siblings, 0 replies; 6+ messages in thread
From: Dmitry Tunin @ 2015-08-11 19:59 UTC (permalink / raw)
  To: Marcel Holtmann
  Cc: Gustavo F. Padovan, Johan Hedberg, linux-bluetooth, linux-kernel,
	stable

The previous mail was a wrong file. Here is the original Raphael report


Hello,

[1.] One line summary of the problem:

AR9462: ath3k and btusb: support for device 04ca:300d makes it disconnect/reconnect indefinitely


[2.] Full description of the problem/report:


I have an Acer Aspire V3-371-31KW with the following Bluetooth device:

    Bus 002 Device 094: ID 04ca:300d Lite-On Technology Corp.

Support for this device has been added in kernel 4.1(.2?) with these three following lines:

in btusb.c:
    { USB_DEVICE(0x04CA, 0x300d) },

in ath3k.c:
    { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },


However, on my computer, it causes a never ending loop of the following:

[10878.667417] usb 2-5: USB disconnect, device number 61
[10879.002466] usb 2-5: new full-speed USB device number 62 using xhci_hcd
[10879.019475] usb 2-5: New USB device found, idVendor=04ca, idProduct=300d
[10879.019488] usb 2-5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[10879.067101] usb 2-5: USB disconnect, device number 62
[10879.402281] usb 2-5: new full-speed USB device number 63 using xhci_hcd
[10879.419130] usb 2-5: New USB device found, idVendor=04ca, idProduct=300d
[10879.419137] usb 2-5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[10879.467626] usb 2-5: USB disconnect, device number 63
[10879.834149] usb 2-5: new full-speed USB device number 64 using xhci_hcd
[10879.851059] usb 2-5: New USB device found, idVendor=04ca, idProduct=300d
[10879.851071] usb 2-5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[10879.898679] usb 2-5: USB disconnect, device number 64
[10880.234001] usb 2-5: new full-speed USB device number 65 using xhci_hcd
[10880.251027] usb 2-5: New USB device found, idVendor=04ca, idProduct=300d
[10880.251041] usb 2-5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[10880.298615] usb 2-5: USB disconnect, device number 65
[10880.633848] usb 2-5: new full-speed USB device number 66 using xhci_hcd
[10880.650806] usb 2-5: New USB device found, idVendor=04ca, idProduct=300d
[10880.650816] usb 2-5: New USB device strings: Mfr=0, Product=0, SerialNumber=0

This loops makes the computer's boot take ages and Bluetooth is obviously not working.

The disconnection seems to happen after the call to ath3k_switch_pid. The disconnection loop, however, doesn't happen if ath3k_load_firmware is commented out in the ath3k_load_patch function.

See the last section for a workaround.

[3.] Keywords (i.e., modules, networking, kernel): ath3k, btusb, 04ca:300d, disconnect loop



[4.] Kernel version (from /proc/version): Linux version 3.13.0-24-generic (buildd@panlong) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014


I tried this in Linux 3.13, 3.19 and 4.1, but it should be true for any kernel after 3.13.

[5.] Output of Oops.. message (if applicable) with symbolic information
     resolved (see Documentation/oops-tracing.txt)

Not concerned

[6.] A small shell script or example program which triggers the problem (if possible):

Not concerned

[7.] Environment: Kubuntu and Mint KDE on an Acer Aspire V3-371-31KW

[7.1.] Software (add the output of the ver_linux script here)

If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux white 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Gnu C                  4.8
Gnu make               3.81
binutils               2.24
util-linux             2.20.1
mount                  support
module-init-tools      15
e2fsprogs              1.42.9
reiserfsprogs          3.6.24
pcmciautils            018
PPP                    2.4.5
Linux C Library        2.19
Dynamic linker (ldd)   2.19
Procps                 3.3.9
Net-tools              1.60
Kbd                    1.15.5
Sh-utils               8.21
wireless-tools         30
Modules Loaded         btusb_without_300d_patch ath3k_without_300d_patch rndis_wlan rndis_host cdc_acm cdc_ether cdc_phonet usbnet phonet ctr ccm rfcomm bnep binfmt_misc arc4 ath9k intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp ath9k_common ath9k_hw kvm_intel ath kvm snd_hda_codec_realtek uvcvideo snd_hda_codec_hdmi crct10dif_pclmul mac80211 snd_hda_intel crc32_pclmul ghash_clmulni_intel snd_hda_codec aesni_intel videobuf2_vmalloc cfg80211 aes_x86_64 videobuf2_memops lrw videobuf2_core joydev gf128mul acer_wmi glue_helper sparse_keymap snd_hwdep ablk_helper serio_raw videodev cryptd snd_pcm rts5139 bluetooth snd_page_alloc snd_seq_midi snd_seq_midi_event parport_pc snd_rawmidi snd_seq ppdev snd_seq_device lp snd_timer lpc_ich snd soundcore mei_me mei mac_hid parport btrfs xor raid6_pq libcrc32c hid_generic usbhid hid i915 i2c_algo_bit psmouse drm_kms_helper drm ahci libahci r8169 mii wmi video


[7.2.] Processor information (from /proc/cpuinfo):

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 69
model name      : Intel(R) Core(TM) i3-4030U CPU @ 1.90GHz
stepping        : 1
microcode       : 0x17
cpu MHz         : 800.000
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 x2apic 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        : 3791.26
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) i3-4030U CPU @ 1.90GHz
stepping        : 1
microcode       : 0x17
cpu MHz         : 800.000
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 x2apic 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        : 3791.26
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) i3-4030U CPU @ 1.90GHz
stepping        : 1
microcode       : 0x17
cpu MHz         : 800.000
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 x2apic 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        : 3791.26
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) i3-4030U CPU @ 1.90GHz
stepping        : 1
microcode       : 0x17
cpu MHz         : 800.000
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 x2apic 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        : 3791.26
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:

[7.3.] Module information (from /proc/modules):

btusb_without_300d_patch 32412 0 - Live 0x0000000000000000 (OF)
ath3k_without_300d_patch 13105 0 - Live 0x0000000000000000 (OF)
rndis_wlan 50281 0 - Live 0x0000000000000000
rndis_host 14503 1 rndis_wlan, Live 0x0000000000000000
cdc_acm 28803 0 - Live 0x0000000000000000
cdc_ether 14351 1 rndis_host, Live 0x0000000000000000
cdc_phonet 13369 0 - Live 0x0000000000000000
usbnet 43877 3 rndis_wlan,rndis_host,cdc_ether, Live 0x0000000000000000
phonet 30439 1 cdc_phonet, Live 0x0000000000000000
ctr 13049 2 - Live 0x0000000000000000
ccm 17773 2 - Live 0x0000000000000000
rfcomm 69160 18 - Live 0x0000000000000000
bnep 19624 2 - Live 0x0000000000000000
binfmt_misc 17468 1 - Live 0x0000000000000000
arc4 12608 2 - Live 0x0000000000000000
ath9k 164164 0 - Live 0x0000000000000000
intel_rapl 18773 0 - Live 0x0000000000000000
x86_pkg_temp_thermal 14205 0 - Live 0x0000000000000000
intel_powerclamp 14705 0 - Live 0x0000000000000000
coretemp 13435 0 - Live 0x0000000000000000
ath9k_common 13551 1 ath9k, Live 0x0000000000000000
ath9k_hw 453856 2 ath9k,ath9k_common, Live 0x0000000000000000
kvm_intel 143060 0 - Live 0x0000000000000000
ath 28698 3 ath9k,ath9k_common,ath9k_hw, Live 0x0000000000000000
kvm 451511 1 kvm_intel, Live 0x0000000000000000
snd_hda_codec_realtek 61438 1 - Live 0x0000000000000000
uvcvideo 80885 0 - Live 0x0000000000000000
snd_hda_codec_hdmi 46207 1 - Live 0x0000000000000000
crct10dif_pclmul 14289 0 - Live 0x0000000000000000
mac80211 626489 1 ath9k, Live 0x0000000000000000
snd_hda_intel 52355 5 - Live 0x0000000000000000
crc32_pclmul 13113 0 - Live 0x0000000000000000
ghash_clmulni_intel 13259 0 - Live 0x0000000000000000
snd_hda_codec 192906 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel, Live 0x0000000000000000
aesni_intel 55624 4 - Live 0x0000000000000000
videobuf2_vmalloc 13216 1 uvcvideo, Live 0x0000000000000000
cfg80211 484040 4 rndis_wlan,ath9k,ath,mac80211, Live 0x0000000000000000
aes_x86_64 17131 1 aesni_intel, Live 0x0000000000000000
videobuf2_memops 13362 1 videobuf2_vmalloc, Live 0x0000000000000000
lrw 13286 1 aesni_intel, Live 0x0000000000000000
videobuf2_core 40664 1 uvcvideo, Live 0x0000000000000000
joydev 17381 0 - Live 0x0000000000000000
gf128mul 14951 1 lrw, Live 0x0000000000000000
acer_wmi 32522 0 - Live 0x0000000000000000
glue_helper 13990 1 aesni_intel, Live 0x0000000000000000
sparse_keymap 13948 1 acer_wmi, Live 0x0000000000000000
snd_hwdep 13602 1 snd_hda_codec, Live 0x0000000000000000
ablk_helper 13597 1 aesni_intel, Live 0x0000000000000000
serio_raw 13462 0 - Live 0x0000000000000000
videodev 134688 2 uvcvideo,videobuf2_core, Live 0x0000000000000000
cryptd 20359 3 ghash_clmulni_intel,aesni_intel,ablk_helper, Live 0x0000000000000000
snd_pcm 102099 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec, Live 0x0000000000000000
rts5139 335409 0 - Live 0x0000000000000000 (C)
bluetooth 395423 23 btusb_with_300d_patch,ath3k_with_300d_patch,rfcomm,bnep, Live 0x0000000000000000
snd_page_alloc 18710 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
parport_pc 32701 0 - Live 0x0000000000000000
snd_rawmidi 30144 1 snd_seq_midi, Live 0x0000000000000000
snd_seq 61560 2 snd_seq_midi,snd_seq_midi_event, Live 0x0000000000000000
ppdev 17671 0 - Live 0x0000000000000000
snd_seq_device 14497 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x0000000000000000
lp 17759 0 - Live 0x0000000000000000
snd_timer 29482 2 snd_pcm,snd_seq, Live 0x0000000000000000
lpc_ich 21080 0 - Live 0x0000000000000000
snd 69238 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
soundcore 12680 1 snd, Live 0x0000000000000000
mei_me 18627 0 - Live 0x0000000000000000
mei 82274 1 mei_me, Live 0x0000000000000000
mac_hid 13205 0 - Live 0x0000000000000000
parport 42348 3 parport_pc,ppdev,lp, Live 0x0000000000000000
btrfs 835954 1 - Live 0x0000000000000000
xor 21411 1 btrfs, Live 0x0000000000000000
raid6_pq 97812 1 btrfs, Live 0x0000000000000000
libcrc32c 12644 1 btrfs, Live 0x0000000000000000
hid_generic 12548 0 - Live 0x0000000000000000
usbhid 52616 0 - Live 0x0000000000000000
hid 106148 2 hid_generic,usbhid, Live 0x0000000000000000
i915 783485 4 - Live 0x0000000000000000
i2c_algo_bit 13413 1 i915, Live 0x0000000000000000
psmouse 102222 0 - Live 0x0000000000000000
drm_kms_helper 52758 1 i915, Live 0x0000000000000000
drm 302817 3 i915,drm_kms_helper, Live 0x0000000000000000
ahci 25819 1 - Live 0x0000000000000000
libahci 32168 1 ahci, Live 0x0000000000000000
r8169 67581 0 - Live 0x0000000000000000
mii 13934 2 usbnet,r8169, Live 0x0000000000000000
wmi 19177 1 acer_wmi, Live 0x0000000000000000
video 19476 2 acer_wmi,i915, Live 0x0000000000000000

[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)

   [7.4.1] /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
  03c0-03df : vesafb
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
  1854-1857 : pnp 00:05
  1860-187f : iTCO_wdt
  1880-189f : ACPI GPE0_BLK
  2000-2fff : PCI Bus 0000:02
  3000-3fff : PCI Bus 0000:01
    3000-30ff : 0000:01:00.0
      3000-30ff : r8169
  4000-403f : 0000:00:02.0
  4040-405f : 0000:00:1f.3
  4060-407f : 0000:00:1f.2
    4060-407f : ahci
  4080-4087 : 0000:00:1f.2
    4080-4087 : ahci
  4088-408f : 0000:00:1f.2
    4088-408f : ahci
  4090-4093 : 0000:00:1f.2
    4090-4093 : ahci
  4094-4097 : 0000:00:1f.2
    4094-4097 : ahci
  ffff-ffff : pnp 00:03
    ffff-ffff : pnp 00:03
      ffff-ffff : pnp 00:03

   [7.4.2] /proc/iomem

00000000-00000fff : reserved
00001000-0009d3ff : System RAM
0009d400-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000cebff : Video ROM
000cf000-000cffff : Adapter ROM
000d0000-000d0fff : Adapter ROM
000d1000-000d1dff : Adapter ROM
000e0000-000fffff : reserved
  000f0000-000fffff : System ROM
00100000-975affff : System RAM
  01000000-0172abb4 : Kernel code
  0172abb5-01d1c9bf : Kernel data
  01e74000-01fdbfff : Kernel bss
975b0000-97eaffff : reserved
97eb0000-9cabefff : System RAM
9cabf000-9cebefff : reserved
9cebf000-9cfbefff : ACPI Non-volatile Storage
9cfbf000-9cffefff : ACPI Tables
9cfff000-9cffffff : System RAM
9d000000-9f9fffff : reserved
  9da00000-9f9fffff : Graphics Stolen Memory
9fa00000-feafffff : PCI Bus 0000:00
  9fa10000-9fa1ffff : pnp 00:08
  9fa20000-9fa20fff : pnp 00:08
  9fb00000-9fbfffff : PCI Bus 0000:02
    9fb00000-9fb0ffff : 0000:02:00.0
  a0000000-afffffff : 0000:00:02.0
  b0000000-b03fffff : 0000:00:02.0
  b0400000-b04fffff : PCI Bus 0000:01
    b0400000-b0403fff : 0000:01:00.0
      b0400000-b0403fff : r8169
  b0500000-b05fffff : PCI Bus 0000:02
    b0500000-b057ffff : 0000:02:00.0
      b0500000-b057ffff : ath9k
  b0600000-b06fffff : PCI Bus 0000:01
    b0600000-b0600fff : 0000:01:00.0
      b0600000-b0600fff : r8169
  b0700000-b070ffff : 0000:00:14.0
    b0700000-b070ffff : xhci_hcd
  b0710000-b0713fff : 0000:00:03.0
    b0710000-b0713fff : ICH HD audio
  b0714000-b0717fff : 0000:00:1b.0
    b0714000-b0717fff : ICH HD audio
  b0718000-b071801f : 0000:00:16.0
    b0718000-b071801f : mei_me
  b0719000-b07190ff : 0000:00:1f.3
  b071b000-b071b7ff : 0000:00:1f.2
    b071b000-b071b7ff : ahci
  b071c000-b071c3ff : 0000:00:1d.0
    b071c000-b071c3ff : ehci_hcd
  e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
    e0000000-efffffff : reserved
      e0000000-efffffff : pnp 00:08
  fe101000-fe112fff : reserved
    fe102000-fe102fff : pnp 00:09
    fe106000-fe106fff : pnp 00:09
    fe10e000-fe10efff : pnp 00:09
    fe111000-fe111007 : pnp 00:09
    fe111014-fe111fff : pnp 00:09
    fe112000-fe112fff : pnp 00:09
  fe802000-fe811fff : pnp 00:03
feb00000-feb0ffff : reserved
fec00000-fec00fff : reserved
  fec00000-fec003ff : IOAPIC 0
fed00000-fee00fff : reserved
  fed00000-fed003ff : HPET 0
  fed10000-fed17fff : pnp 00:08
  fed18000-fed18fff : pnp 00:08
  fed19000-fed19fff : pnp 00:08
  fed1c000-fed1ffff : pnp 00:08
    fed1f410-fed1f414 : iTCO_wdt
  fed20000-fed3ffff : pnp 00:08
  fed90000-fed90fff : dmar0
  fed91000-fed91fff : dmar1
  fee00000-fee00fff : Local APIC
ffc00000-ffffffff : reserved
100000000-15f5fffff : System RAM
15f600000-15fffffff : RAM buffer

[7.5.] PCI information ('lspci -vvv' as root)
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
    Subsystem: Acer Incorporated [ALI] Device 0918
    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=0c <?>

00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller])
    Subsystem: Acer Incorporated [ALI] Device 0918
    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 63
    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 4000 [size=64]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Address: fee00018  Data: 0000
    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-
    Capabilities: [a4] PCI Advanced Features
        AFCap: TP+ FLR+
        AFCtrl: FLR-
        AFStatus: TP-
    Kernel driver in use: i915

00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
    Subsystem: Acer Incorporated [ALI] Device 0918
    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 64
    Region 0: Memory at b0710000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [50] 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: [60] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Address: fee00378  Data: 0000
    Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
        DevCap: MaxPayload 128 bytes, PhantFunc 0
            ExtTag- RBE-
        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-
    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 0918
    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 60
    Region 0: Memory at b0700000 (64-bit, non-prefetchable) [size=64K]
    Capabilities: [70] 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: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
        Address: 00000000fee00318  Data: 0000
    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 0918
    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 65
    Region 0: Memory at b0718000 (64-bit, non-prefetchable) [size=32]
    Capabilities: [50] 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=0 PME-
    Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Address: 00000000fee003b8  Data: 0000
    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 0918
    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 66
    Region 0: Memory at b0714000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [50] Power Management version 3
        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: 00000000fee003d8  Data: 0000
    Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
        DevCap: MaxPayload 128 bytes, PhantFunc 0
            ExtTag- RBE-
        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-
    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=ff
            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-
    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: 00003000-00003fff
    Memory behind bridge: b0600000-b06fffff
    Prefetchable memory behind bridge: 00000000b0400000-00000000b04fffff
    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 (v2) Root Port (Slot+), MSI 00
        DevCap: MaxPayload 128 bytes, PhantFunc 0
            ExtTag- RBE+
        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 #3, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us
            ClockPM- Surprise- LLActRep+ BwNot+
        LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- 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 #2, PowerLimit 10.000W; 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-
        DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF Not Supported ARIFwd-
        DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled ARIFwd-
        LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
             Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
             Compliance De-emphasis: -6dB
        LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
             EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Address: fee002b8  Data: 0000
    Capabilities: [90] Subsystem: Acer Incorporated [ALI] Device 0918
    Capabilities: [a0] 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=0 PME-
    Capabilities: [100 v0] #00
    Capabilities: [200 v1] L1 PM Substates
        L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
              PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
    Kernel driver in use: pcieport

00:1c.3 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 4 (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=02, subordinate=02, sec-latency=0
    I/O behind bridge: 0000f000-00000fff
    Memory behind bridge: b0500000-b05fffff
    Prefetchable memory behind bridge: 000000009fb00000-000000009fbfffff
    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 (v2) Root Port (Slot+), MSI 00
        DevCap: MaxPayload 128 bytes, PhantFunc 0
            ExtTag- RBE+
        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 #4, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <512ns, L1 <16us
            ClockPM- Surprise- LLActRep+ BwNot+
        LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- 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 #3, PowerLimit 10.000W; 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-
        DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF Not Supported ARIFwd-
        DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled ARIFwd-
        LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
             Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
             Compliance De-emphasis: -6dB
        LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
             EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Address: fee002f8  Data: 0000
    Capabilities: [90] Subsystem: Acer Incorporated [ALI] Device 0918
    Capabilities: [a0] 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=0 PME-
    Capabilities: [100 v0] #00
    Capabilities: [200 v1] L1 PM Substates
        L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
              PortCommonModeRestoreTime=40us PortTPowerOnTime=10us
    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 0918
    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 b071c000 (32-bit, non-prefetchable) [size=1K]
    Capabilities: [50] 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: [58] Debug port: BAR=1 offset=00a0
    Capabilities: [98] PCI Advanced Features
        AFCap: TP+ FLR+
        AFCtrl: FLR-
        AFStatus: TP-
    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 0918
    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 Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
    Subsystem: Acer Incorporated [ALI] Device 0918
    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 61
    Region 0: I/O ports at 4088 [size=8]
    Region 1: I/O ports at 4094 [size=4]
    Region 2: I/O ports at 4080 [size=8]
    Region 3: I/O ports at 4090 [size=4]
    Region 4: I/O ports at 4060 [size=32]
    Region 5: Memory at b071b000 (32-bit, non-prefetchable) [size=2K]
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Address: fee00338  Data: 0000
    Capabilities: [70] 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=0 PME-
    Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004
    Kernel driver in use: ahci

00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
    Subsystem: Acer Incorporated [ALI] Device 0918
    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 11
    Region 0: Memory at b0719000 (64-bit, non-prefetchable) [size=256]
    Region 4: I/O ports at 4040 [size=32]

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
    Subsystem: Acer Incorporated [ALI] Device 0918
    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 62
    Region 0: I/O ports at 3000 [size=256]
    Region 2: Memory at b0600000 (64-bit, non-prefetchable) [size=4K]
    Region 4: Memory at b0400000 (64-bit, prefetchable) [size=16K]
    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: 00000000fee00358  Data: 0000
    Capabilities: [70] Express (v2) Endpoint, MSI 01
        DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
            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, Exit Latency L0s unlimited, L1 <64us
            ClockPM+ Surprise- LLActRep- BwNot-
        LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
            ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
        LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
        DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Via message/WAKE#
        DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled
        LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
             Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
             Compliance De-emphasis: -6dB
        LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
             EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
    Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
        Vector table: BAR=4 offset=00000000
        PBA: BAR=4 offset=00000800
    Capabilities: [d0] 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=ff
            Status: NegoPending- InProgress-
    Capabilities: [160 v1] Device Serial Number 01-00-00-00-68-4c-e0-00
    Capabilities: [170 v1] Latency Tolerance Reporting
        Max snoop latency: 3145728ns
        Max no snoop latency: 3145728ns
    Kernel driver in use: r8169

02:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
    Subsystem: Lite-On Communications Inc Device 0802
    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 19
    Region 0: Memory at b0500000 (64-bit, non-prefetchable) [size=512K]
    Expansion ROM at 9fb00000 [disabled] [size=64K]
    Capabilities: [40] 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: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
        Address: 0000000000000000  Data: 0000
        Masking: 00000000  Pending: 00000000
    Capabilities: [70] Express (v2) Endpoint, MSI 00
        DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us
            ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
        DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
            RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
            MaxPayload 128 bytes, MaxReadReq 512 bytes
        DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
        LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <64us
            ClockPM- Surprise- LLActRep- BwNot-
        LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- 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+, LTR-, OBFF Not Supported
        DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
        LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
             Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
             Compliance De-emphasis: -6dB
        LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
             EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
    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=ff
            Status: NegoPending- InProgress-
    Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00
    Kernel driver in use: ath9k

[7.6.] SCSI information (from /proc/scsi/scsi)
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: ST500LM000-1EJ16 Rev: SM25
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: Generic- Model: xD/SD/M.S.       Rev: 1.00
  Type:   Direct-Access                    ANSI  SCSI revision: 02


[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):

Let's include the output of lsusb -vv as root.

Bus 001 Device 002: ID 8087:8000 Intel Corp.
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         1 Single TT
  bMaxPacketSize0        64
  idVendor           0x8087 Intel Corp.
  idProduct          0x8000
  bcdDevice            0.04
  iManufacturer           0
  iProduct                0
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0002  1x 2 bytes
        bInterval              12
Hub Descriptor:
  bLength              11
  bDescriptorType      41
  nNbrPorts             8
  wHubCharacteristic 0x0009
    Per-port power switching
    Per-port overcurrent protection
    TT think time 8 FS bits
  bPwrOn2PwrGood        0 * 2 milli seconds
  bHubContrCurrent      0 milli Ampere
  DeviceRemovable    0x00 0x00
  PortPwrCtrlMask    0xff 0xff
 Hub Port Status:
   Port 1: 0000.0100 power
   Port 2: 0000.0100 power
   Port 3: 0000.0100 power
   Port 4: 0000.0100 power
   Port 5: 0000.0100 power
   Port 6: 0000.0100 power
   Port 7: 0000.0100 power
   Port 8: 0000.0100 power
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0001
  Self Powered

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0002 2.0 root hub
  bcdDevice            3.13
  iManufacturer           3 Linux 3.13.0-24-generic ehci_hcd
  iProduct                2 EHCI Host Controller
  iSerial                 1 0000:00:1d.0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              12
Hub Descriptor:
  bLength               9
  bDescriptorType      41
  nNbrPorts             2
  wHubCharacteristic 0x000a
    No power switching (usb 1.0)
    Per-port overcurrent protection
  bPwrOn2PwrGood       10 * 2 milli seconds
  bHubContrCurrent      0 milli Ampere
  DeviceRemovable    0x02
  PortPwrCtrlMask    0xff
 Hub Port Status:
   Port 1: 0000.0507 highspeed power suspend enable connect
   Port 2: 0000.0100 power
Device Status:     0x0001
  Self Powered

Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         3
  bMaxPacketSize0         9
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0003 3.0 root hub
  bcdDevice            3.13
  iManufacturer           3 Linux 3.13.0-24-generic xhci_hcd
  iProduct                2 xHCI Host Controller
  iSerial                 1 0000:00:14.0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           31
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              12
        bMaxBurst               0
Hub Descriptor:
  bLength              12
  bDescriptorType      42
  nNbrPorts             4
  wHubCharacteristic 0x000a
    No power switching (usb 1.0)
    Per-port overcurrent protection
  bPwrOn2PwrGood       10 * 2 milli seconds
  bHubContrCurrent      0 milli Ampere
  bHubDecLat          0.0 micro seconds
  wHubDelay             0 nano seconds
  DeviceRemovable    0x00
 Hub Port Status:
   Port 1: 0000.02a0 5Gbps power Rx.Detect
   Port 2: 0000.02a0 5Gbps power Rx.Detect
   Port 3: 0000.02a0 5Gbps power Rx.Detect
   Port 4: 0000.02a0 5Gbps power Rx.Detect
Binary Object Store Descriptor:
  bLength                 5
  bDescriptorType        15
  wTotalLength           15
  bNumDeviceCaps          1
  SuperSpeed USB Device Capability:
    bLength                10
    bDescriptorType        16
    bDevCapabilityType      3
    bmAttributes         0x02
      Latency Tolerance Messages (LTM) Supported
    wSpeedsSupported   0x0008
      Device can operate at SuperSpeed (5Gbps)
    bFunctionalitySupport   3
      Lowest fully-functional device speed is SuperSpeed (5Gbps)
    bU1DevExitLat          10 micro seconds
    bU2DevExitLat         512 micro seconds
Device Status:     0x0001
  Self Powered

Bus 002 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0        64
  idVendor           0x0bda Realtek Semiconductor Corp.
  idProduct          0x0129 RTS5129 Card Reader Controller
  bcdDevice           39.60
  iManufacturer           1 Generic
  iProduct                2 USB2.0-CRW
  iSerial                 3 20100201396000000
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           39
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          4 CARD READER
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      6
      bInterfaceProtocol     80
      iInterface              5 Bulk-In, Bulk-Out, Interface
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0003  1x 3 bytes
        bInterval              10
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0000
  (Bus Powered)

Bus 002 Device 004: ID 04f2:b469 Chicony Electronics Co., Ltd
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 ?
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x04f2 Chicony Electronics Co., Ltd
  idProduct          0xb469
  bcdDevice           28.57
  iManufacturer           1 Chicony Electronics Co.,Ltd.
  iProduct                2 HD WebCam
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          877
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass         14 Video
      bFunctionSubClass       3 Video Interface Collection
      bFunctionProtocol       0
      iFunction               4 HD WebCam
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      1 Video Control
      bInterfaceProtocol      0
      iInterface              4 HD WebCam
      VideoControl Interface Descriptor:
        bLength                13
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdUVC               1.00
        wTotalLength          109
        dwClockFrequency       48.000000MHz
        bInCollection           1
        baInterfaceNr( 0)       1
      VideoControl Interface Descriptor:
        bLength                18
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Camera Sensor
        bAssocTerminal          0
        iTerminal               0
        wObjectiveFocalLengthMin      0
        wObjectiveFocalLengthMax      0
        wOcularFocalLength            0
        bControlSize                  3
        bmControls           0x0000000a
          Auto-Exposure Mode
          Exposure Time (Absolute)
      VideoControl Interface Descriptor:
        bLength                11
        bDescriptorType        36
        bDescriptorSubtype      5 (PROCESSING_UNIT)
      Warning: Descriptor too short
        bUnitID                 2
        bSourceID               1
        wMaxMultiplier      16384
        bControlSize            2
        bmControls     0x0000157f
          Brightness
          Contrast
          Hue
          Saturation
          Sharpness
          Gamma
          White Balance Temperature
          Backlight Compensation
          Power Line Frequency
          White Balance Temperature, Auto
        iProcessing             0
        bmVideoStandards     0x1d
          None
          PAL - 625/50
          SECAM - 625/50
          NTSC - 625/50
      VideoControl Interface Descriptor:
        bLength                29
        bDescriptorType        36
        bDescriptorSubtype      6 (EXTENSION_UNIT)
        bUnitID                 3
        guidExtensionCode {c385b80f-c268-4745-90f7-8f47579d95fc}
        bNumControl             0
        bNrPins                 1
        baSourceID( 0)          2
        bControlSize            4
        bmControls( 0)       0x1f
        bmControls( 1)       0x00
        bmControls( 2)       0x00
        bmControls( 3)       0x00
        iExtension              0
      VideoControl Interface Descriptor:
        bLength                29
        bDescriptorType        36
        bDescriptorSubtype      6 (EXTENSION_UNIT)
        bUnitID                 4
        guidExtensionCode {82066163-7050-ab49-b8cc-b3855e8d221d}
        bNumControl             0
        bNrPins                 1
        baSourceID( 0)          3
        bControlSize            4
        bmControls( 0)       0xff
        bmControls( 1)       0xff
        bmControls( 2)       0x71
        bmControls( 3)       0x00
        iExtension              0
      VideoControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             5
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               4
        iTerminal               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x87  EP 7 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0010  1x 16 bytes
        bInterval               8
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      VideoStreaming Interface Descriptor:
        bLength                            15
        bDescriptorType                    36
        bDescriptorSubtype                  1 (INPUT_HEADER)
        bNumFormats                         2
        wTotalLength                      545
        bEndPointAddress                  129
        bmInfo                              0
        bTerminalLink                       5
        bStillCaptureMethod                 1
        bTriggerSupport                     1
        bTriggerUsage                       0
        bControlSize                        1
        bmaControls( 0)                    27
        bmaControls( 1)                    27
      VideoStreaming Interface Descriptor:
        bLength                            27
        bDescriptorType                    36
        bDescriptorSubtype                  4 (FORMAT_UNCOMPRESSED)
        bFormatIndex                        1
        bNumFrameDescriptors                8
        guidFormat {59555932-0000-1000-8000-00aa00389b71}
        bBitsPerPixel                      16
        bDefaultFrameIndex                  1
        bAspectRatioX                       0
        bAspectRatioY                       0
        bmInterlaceFlags                 0x00
          Interlaced stream or variable: No
          Fields per frame: 2 fields
          Field 1 first: No
          Field pattern: Field 1 only
          bCopyProtect                      0
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         1
        bmCapabilities                   0x01
          Still image supported
        wWidth                            640
        wHeight                           480
        dwMinBitRate                147456000
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize      614400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         2
        bmCapabilities                   0x01
          Still image supported
        wWidth                            320
        wHeight                           180
        dwMinBitRate                 27648000
        dwMaxBitRate                 27648000
        dwMaxVideoFrameBufferSize      115200
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         3
        bmCapabilities                   0x01
          Still image supported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                 36864000
        dwMaxBitRate                 36864000
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         4
        bmCapabilities                   0x01
          Still image supported
        wWidth                            424
        wHeight                           240
        dwMinBitRate                 48844800
        dwMaxBitRate                 48844800
        dwMaxVideoFrameBufferSize      203520
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         5
        bmCapabilities                   0x01
          Still image supported
        wWidth                            640
        wHeight                           360
        dwMinBitRate                110592000
        dwMaxBitRate                110592000
        dwMaxVideoFrameBufferSize      460800
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         6
        bmCapabilities                   0x01
          Still image supported
        wWidth                            848
        wHeight                           480
        dwMinBitRate                130252800
        dwMaxBitRate                130252800
        dwMaxVideoFrameBufferSize      814080
        dwDefaultFrameInterval         500000
        bFrameIntervalType                  1
        dwFrameInterval( 0)            500000
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         7
        bmCapabilities                   0x01
          Still image supported
        wWidth                            960
        wHeight                           540
        dwMinBitRate                124416000
        dwMaxBitRate                124416000
        dwMaxVideoFrameBufferSize     1036800
        dwDefaultFrameInterval         666666
        bFrameIntervalType                  1
        dwFrameInterval( 0)            666666
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  5 (FRAME_UNCOMPRESSED)
        bFrameIndex                         8
        bmCapabilities                   0x01
          Still image supported
        wWidth                           1280
        wHeight                           720
        dwMinBitRate                147456000
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize     1843200
        dwDefaultFrameInterval        1000000
        bFrameIntervalType                  1
        dwFrameInterval( 0)           1000000
      VideoStreaming Interface Descriptor:
        bLength                             6
        bDescriptorType                    36
        bDescriptorSubtype                 13 (COLORFORMAT)
        bColorPrimaries                     1 (BT.709,sRGB)
        bTransferCharacteristics            1 (BT.709)
        bMatrixCoefficients                 4 (SMPTE 170M (BT.601))
      VideoStreaming Interface Descriptor:
        bLength                            11
        bDescriptorType                    36
        bDescriptorSubtype                  6 (FORMAT_MJPEG)
        bFormatIndex                        2
        bNumFrameDescriptors                8
        bFlags                              1
          Fixed-size samples: Yes
        bDefaultFrameIndex                  1
        bAspectRatioX                       0
        bAspectRatioY                       0
        bmInterlaceFlags                 0x00
          Interlaced stream or variable: No
          Fields per frame: 1 fields
          Field 1 first: No
          Field pattern: Field 1 only
          bCopyProtect                      0
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         1
        bmCapabilities                   0x01
          Still image supported
        wWidth                            640
        wHeight                           480
        dwMinBitRate                147456000
        dwMaxBitRate                147456000
        dwMaxVideoFrameBufferSize      614400
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         2
        bmCapabilities                   0x01
          Still image supported
        wWidth                            320
        wHeight                           180
        dwMinBitRate                 27648000
        dwMaxBitRate                 27648000
        dwMaxVideoFrameBufferSize      115200
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         3
        bmCapabilities                   0x01
          Still image supported
        wWidth                            320
        wHeight                           240
        dwMinBitRate                 36864000
        dwMaxBitRate                 36864000
        dwMaxVideoFrameBufferSize      153600
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         4
        bmCapabilities                   0x01
          Still image supported
        wWidth                            424
        wHeight                           240
        dwMinBitRate                 48844800
        dwMaxBitRate                 48844800
        dwMaxVideoFrameBufferSize      203520
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         5
        bmCapabilities                   0x01
          Still image supported
        wWidth                            640
        wHeight                           360
        dwMinBitRate                110592000
        dwMaxBitRate                110592000
        dwMaxVideoFrameBufferSize      460800
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         6
        bmCapabilities                   0x01
          Still image supported
        wWidth                            848
        wHeight                           480
        dwMinBitRate                195379200
        dwMaxBitRate                195379200
        dwMaxVideoFrameBufferSize      814080
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         7
        bmCapabilities                   0x01
          Still image supported
        wWidth                            960
        wHeight                           540
        dwMinBitRate                248832000
        dwMaxBitRate                248832000
        dwMaxVideoFrameBufferSize     1036800
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                            30
        bDescriptorType                    36
        bDescriptorSubtype                  7 (FRAME_MJPEG)
        bFrameIndex                         8
        bmCapabilities                   0x01
          Still image supported
        wWidth                           1280
        wHeight                           720
        dwMinBitRate                442368000
        dwMaxBitRate                442368000
        dwMaxVideoFrameBufferSize     1843200
        dwDefaultFrameInterval         333333
        bFrameIntervalType                  1
        dwFrameInterval( 0)            333333
      VideoStreaming Interface Descriptor:
        bLength                             6
        bDescriptorType                    36
        bDescriptorSubtype                 13 (COLORFORMAT)
        bColorPrimaries                     1 (BT.709,sRGB)
        bTransferCharacteristics            1 (BT.709)
        bMatrixCoefficients                 4 (SMPTE 170M (BT.601))
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x00c0  1x 192 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       2
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0180  1x 384 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       3
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       4
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0280  1x 640 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       5
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0320  1x 800 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       6
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x03b0  1x 944 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       7
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0a80  2x 640 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       8
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0b20  2x 800 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       9
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x0be0  2x 992 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting      10
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x13c0  3x 960 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting      11
      bNumEndpoints           1
      bInterfaceClass        14 Video
      bInterfaceSubClass      2 Video Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            5
          Transfer Type            Isochronous
          Synch Type               Asynchronous
          Usage Type               Data
        wMaxPacketSize     0x13fc  3x 1020 bytes
        bInterval               1
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 ?
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0000
  (Bus Powered)

Bus 002 Device 094: ID 04ca:300d Lite-On Technology Corp.
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          224 Wireless
  bDeviceSubClass         1 Radio Frequency
  bDeviceProtocol         1 Bluetooth
  bMaxPacketSize0        64
  idVendor           0x04ca Lite-On Technology Corp.
  idProduct          0x300d
  bcdDevice            0.02
  iManufacturer           0
  iProduct                0
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          177
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0010  1x 16 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          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            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0000  1x 0 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0000  1x 0 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0009  1x 9 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0009  1x 9 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       2
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0011  1x 17 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0011  1x 17 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       3
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0019  1x 25 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0019  1x 25 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       4
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0021  1x 33 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0021  1x 33 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       5
      bNumEndpoints           2
      bInterfaceClass       224 Wireless
      bInterfaceSubClass      1 Radio Frequency
      bInterfaceProtocol      1 Bluetooth
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0031  1x 49 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0031  1x 49 bytes
        bInterval               1
Device Status:     0x0003
  Self Powered
  Remote Wakeup Enabled

Bus 002 Device 037: ID 0458:003a KYE Systems Corp. (Mouse Systems) NetScroll+ Mini Traveler / Genius NetScroll 120
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         8
  idVendor           0x0458 KYE Systems Corp. (Mouse Systems)
  idProduct          0x003a NetScroll+ Mini Traveler / Genius NetScroll 120
  bcdDevice            1.00
  iManufacturer           1 Genius
  iProduct                2 Optical Mouse
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           34
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          4 HID-compliant MOUSE
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.10
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      62
         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     0x0004  1x 4 bytes
        bInterval              10
Device Status:     0x0000
  (Bus Powered)

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         1 Single TT
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0002 2.0 root hub
  bcdDevice            3.13
  iManufacturer           3 Linux 3.13.0-24-generic xhci_hcd
  iProduct                2 xHCI Host Controller
  iSerial                 1 0000:00:14.0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              12
Hub Descriptor:
  bLength              11
  bDescriptorType      41
  nNbrPorts             9
  wHubCharacteristic 0x000a
    No power switching (usb 1.0)
    Per-port overcurrent protection
    TT think time 8 FS bits
  bPwrOn2PwrGood       10 * 2 milli seconds
  bHubContrCurrent      0 milli Ampere
  DeviceRemovable    0x00 0x02
  PortPwrCtrlMask    0xff 0xff
 Hub Port Status:
   Port 1: 0000.0101 power connect
   Port 2: 0000.0303 lowspeed power enable connect
   Port 3: 0000.0100 power
   Port 4: 0000.0100 power
   Port 5: 0000.0103 power enable connect
   Port 6: 0000.0100 power
   Port 7: 0000.0503 highspeed power enable connect
   Port 8: 0000.0503 highspeed power enable connect
   Port 9: 0000.0100 power
Device Status:     0x0001
  Self Powered

[X.] Other notes, patches, fixes, workarounds:

A workaround to this bug is to blacklist ath3k and btusb, and have two versions of them:

1) The patched versions, which contains the following lines:

in btusb.c:
    { USB_DEVICE(0x04CA, 0x300d) },

in ath3k.c:
    { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
    { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
2) The unpatched versions, same modules without these lines.

The workaround is to insmod the patched versions (which load the
firmware), rmmod them after a second, and insmod the unpatched versions.
 After that  Bluetooth is working until next computer suspend or halt.
The firmware is not kept loaded after suspend or halt, but it is kept
loaded after a reboot. Using the unpatched versions without the firmware being loaded makes Bluetooth look activated but unusable.

I also noticed that iProduct = 0 for the 04ca:300d device.

This is my first bug report to the kernel, so please tell me if I did anything wrong.

Cheers,

Raphaël.


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2015-08-11 19:59 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-08-11 10:50 [PATCH] ath3k: Revert 7e730c7f3d1f39c25cf5f7cf70c0ff4c28d7bec7 Dmitry Tunin
2015-08-11 12:52 ` Dmitry Tunin
2015-08-11 19:23 ` Marcel Holtmann
2015-08-11 19:43   ` Dmitry Tunin
2015-08-11 19:54     ` Dmitry Tunin
2015-08-11 19:59       ` Dmitry Tunin

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