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Input: usbtouchscreen - support bigger iNexio touchscreens 

Bigger Nexio touchscreens not only send more data but also the header
values are modified somewhat.  Fix the header (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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Ondrej Zary 2010-05-26 23:30:54 -07:00 committed by Dmitry Torokhov
parent 067fb2f648
commit 388bbcade4
1 changed files with 6 additions and 1 deletions
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7
drivers/input/touchscreen/usbtouchscreen.c
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@ -857,6 +857,11 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
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);
@ -1112,7 +1117,7 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
[DEVTYPE_NEXIO] = {
.rept_size = 128,
.rept_size = 1024,
.irq_always = true,
.read_data = nexio_read_data,
.init = nexio_init,