diff options
| author | Mark Assad <massad@gmail.com> | 2006-10-05 12:25:05 +1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 19:44:36 -0700 |
| commit | 77dc2db6d1d2703ee4e83d4b3dbecf4e06a910e6 (patch) | |
| tree | f8ff9b87a63409bd774a9723e2c5b3b546d91134 | |
| parent | 4b8447184ae85de4ce710e5f561fbaada21b8394 (diff) | |
[PATCH] itmtouch: fix inverted flag to indicate touch location correctly, correct white space
There is a bug in the current version of the itmtouch USB touchscreen
driver. The if statment that checks if pressure is being applied to the
touch screen is now missing a ! (not), so events are no longer being
reported correctly.
The original source code for this line was as follows:
#define UCP(x) ((unsigned char*)(x))
#define UCOM(x,y,z) ((UCP((x)->transfer_buffer)[y]) & (z))
...
if (!UCOM(urb, 7, 0x20)) {
And was cleaned to:
unsigned char *data = urb->transfer_buffer;
....
if (data[7] & 0x20) {
(note the lack of '!')
This has been tested on an LG L1510BF and an LG1510SF touch screen.
Signed-off-by: Mark Assad <massad@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/usb/input/itmtouch.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/input/itmtouch.c b/drivers/usb/input/itmtouch.c index 61966d719ca..f3e3080de5b 100644 --- a/drivers/usb/input/itmtouch.c +++ b/drivers/usb/input/itmtouch.c @@ -36,7 +36,11 @@ * * 1.2.1 09/03/2005 (HCE) hc@mivu.no * Code cleanup and adjusting syntax to start matching kernel standards - * + * + * 1.2.2 10/05/2006 (MJA) massad@gmail.com + * Flag for detecting if the screen was being touch was incorrectly + * inverted, so no touch events were being detected. + * *****************************************************************************/ #include <linux/kernel.h> @@ -53,7 +57,7 @@ #define USB_PRODUCT_ID_TOUCHPANEL 0xf9e9 #define DRIVER_AUTHOR "Hans-Christian Egtvedt <hc@mivu.no>" -#define DRIVER_VERSION "v1.2.1" +#define DRIVER_VERSION "v1.2.2" #define DRIVER_DESC "USB ITM Inc Touch Panel Driver" #define DRIVER_LICENSE "GPL" @@ -108,7 +112,7 @@ static void itmtouch_irq(struct urb *urb, struct pt_regs *regs) input_regs(dev, regs); /* if pressure has been released, then don't report X/Y */ - if (data[7] & 0x20) { + if (!(data[7] & 0x20)) { input_report_abs(dev, ABS_X, (data[0] & 0x1F) << 7 | (data[3] & 0x7F)); input_report_abs(dev, ABS_Y, (data[1] & 0x1F) << 7 | (data[4] & 0x7F)); } |