commit 2a8281d72da5dd8da025e6822dadd23a35383895
author Daniel Ritz <daniel.ritz-ml@swissonline.ch> Mon Sep 10 01:31:40 2007 -0400
committer Dmitry Torokhov <dmitry.torokhov@gmail.com> Mon Sep 10 01:31:40 2007 -0400
tree bee3a76f00003d7cdbb659925f06376f5f1c5413
parent f76f672e093b1dc3abff3a21ae6b939b08d192e7

Input: usbtouchscreen - support DMC devices with empty EEPROM

A reply of 0x0600 means all OK, 0x1501 means OK, but EEPROM empty.
The behavior with an empty EEPROM is the same as without one at all
so do not fail loading the driver.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/touchscreen/usbtouchscreen.c

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 796b837..13fbda0 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -402,7 +402,8 @@
 	                      TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
 	if (ret < 0)
 		return ret;
-	if (buf[0] != 0x06 || buf[1] != 0x00)
+	if ((buf[0] != 0x06 || buf[1] != 0x00) &&
+	    (buf[0] != 0x15 || buf[1] != 0x01))
 		return -ENODEV;
 
 	/* start sending data */