* usbtouchscreen: support bigger iNexio touchscreens
@ 2010-03-16 13:23 Ondrej Zary
2010-03-16 13:26 ` Jiri Kosina
0 siblings, 1 reply; 2+ messages in thread
From: Ondrej Zary @ 2010-03-16 13:23 UTC (permalink / raw)
To: Oliver Neukum; +Cc: linux-usb, daniel.ritz, linux-kernel
Bigger Nexio touchscreens not only send more data but also the header values
are modified somehow. Fix the header somehow (it's a guesswork but it works
at least on one 46" touchscreen with 2.00SMS firmware) and also increase
rept_size.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
--- linux-2.6.34-rc1-orig/drivers/input/touchscreen/usbtouchscreen.c 2010-03-16 13:34:51.000000000 +0100
+++ linux-2.6.34-rc1/drivers/input/touchscreen/usbtouchscreen.c 2010-03-16 13:46:15.000000000 +0100
@@ -858,6 +858,11 @@
if ((pkt[0] & 0xe0) != 0xe0)
return 0;
+ if (be16_to_cpu(packet->data_len) > 0xff)
+ packet->data_len = cpu_to_be16(be16_to_cpu(packet->data_len) - 0x100);
+ if (be16_to_cpu(packet->x_len) > 0xff)
+ packet->x_len = cpu_to_be16(be16_to_cpu(packet->x_len) - 0x80);
+
/* send ACK */
ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
@@ -1113,7 +1118,7 @@
#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
[DEVTYPE_NEXIO] = {
- .rept_size = 128,
+ .rept_size = 1024,
.irq_always = true,
.read_data = nexio_read_data,
.init = nexio_init,
--
Ondrej Zary
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: usbtouchscreen: support bigger iNexio touchscreens
2010-03-16 13:23 usbtouchscreen: support bigger iNexio touchscreens Ondrej Zary
@ 2010-03-16 13:26 ` Jiri Kosina
0 siblings, 0 replies; 2+ messages in thread
From: Jiri Kosina @ 2010-03-16 13:26 UTC (permalink / raw)
To: Ondrej Zary
Cc: Oliver Neukum, linux-usb, daniel.ritz, linux-kernel,
Dmitry Torokhov, linux-input
[ adding some more relevant CCs ]
On Tue, 16 Mar 2010, Ondrej Zary wrote:
> Bigger Nexio touchscreens not only send more data but also the header values
> are modified somehow. Fix the header somehow (it's a guesswork but it works
> at least on one 46" touchscreen with 2.00SMS firmware) and also increase
> rept_size.
>
> Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
>
> --- linux-2.6.34-rc1-orig/drivers/input/touchscreen/usbtouchscreen.c 2010-03-16 13:34:51.000000000 +0100
> +++ linux-2.6.34-rc1/drivers/input/touchscreen/usbtouchscreen.c 2010-03-16 13:46:15.000000000 +0100
> @@ -858,6 +858,11 @@
> if ((pkt[0] & 0xe0) != 0xe0)
> return 0;
>
> + if (be16_to_cpu(packet->data_len) > 0xff)
> + packet->data_len = cpu_to_be16(be16_to_cpu(packet->data_len) - 0x100);
> + if (be16_to_cpu(packet->x_len) > 0xff)
> + packet->x_len = cpu_to_be16(be16_to_cpu(packet->x_len) - 0x80);
> +
> /* send ACK */
> ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
>
> @@ -1113,7 +1118,7 @@
>
> #ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
> [DEVTYPE_NEXIO] = {
> - .rept_size = 128,
> + .rept_size = 1024,
> .irq_always = true,
> .read_data = nexio_read_data,
> .init = nexio_init,
>
>
>
--
Jiri Kosina
SUSE Labs, Novell Inc.
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