[ 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@xxxxxxxxxxxxxxxxxxxx>
>
> --- 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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