From 388bbcade41ee68d2d1ebb51a538380ea48ae599 Mon Sep 17 00:00:00 2001
From: Ondrej Zary <linux@rainbow-software.org>
Date: Wed, 26 May 2010 23:30:54 -0700
Subject: [PATCH] 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>
---
drivers/input/touchscreen/usbtouchscreen.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 0b0ae2e17a60..82227b00d4b9 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -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,
--
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