patch for usbtouchscreen.c

patch for usbtouchscreen.c

[yhch]

Hi all

--This is time,I paste the patch into my email directly.
There is a problem,that is,the coordinate of Generaltouch touchscreen is limited to 0xFFF by usbtouchscreen.c while many models of our touchscreen give bigger coordinate than that.Could you please apply this patch to linux kernel?

Thanks!

2010-02-03 
Best Regards
Roy.Yin 
Generaltouch.com

--- usbtouchscreen.c	2008-11-21 07:02:37.000000000 +0800
+++ usbtouchscreengt.c	2010-02-03 15:30:57.000000000 +0800
@@ -526,8 +526,8 @@
 #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
 static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
 {
-	dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1] ;
-	dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3] ;
+	dev->x = ((pkt[2]) << 8) | pkt[1] ;
+	dev->y = ((pkt[4]) << 8) | pkt[3] ;
 	dev->press = pkt[5] & 0xff;
 	dev->touch = pkt[0] & 0x01;
 
@@ -669,9 +669,9 @@
 #ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
 	[DEVTYPE_GENERAL_TOUCH] = {
 		.min_xc		= 0x0,
-		.max_xc		= 0x0500,
+		.max_xc		= 0x0fff,
 		.min_yc		= 0x0,
-		.max_yc		= 0x0500,
+		.max_yc		= 0x0fff,
 		.rept_size	= 7,
 		.read_data	= general_touch_read_data,
 	},