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authorPing Cheng <pinglinux@gmail.com>2011-08-16 11:17:57 +0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2011-08-16 11:21:52 +0400
commit3b48c91cdf2d6827ce315b3b112310fa02198db0 (patch)
tree5a140a55c3e0ca2c9dee714755b14e159c815395 /drivers/input
parenta417ea4432db7fd1c91c19b129a3e3d2367b7ce4 (diff)
downloadlinux-3b48c91cdf2d6827ce315b3b112310fa02198db0.tar.xz
Input: wacom - report id 3 returns 4 bytes of data
Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/tablet/wacom_sys.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 9879c73ee517..d27c9d91630b 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -320,23 +320,25 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
int limit = 0, report_id = 2;
int error = -ENOMEM;
- rep_data = kmalloc(2, GFP_KERNEL);
+ rep_data = kmalloc(4, GFP_KERNEL);
if (!rep_data)
return error;
- /* ask to report tablet data if it is 2FGT Tablet PC or
+ /* ask to report tablet data if it is MT Tablet PC or
* not a Tablet PC */
if (features->type == TABLETPC2FG) {
do {
rep_data[0] = 3;
rep_data[1] = 4;
+ rep_data[2] = 0;
+ rep_data[3] = 0;
report_id = 3;
error = usb_set_report(intf, WAC_HID_FEATURE_REPORT,
- report_id, rep_data, 2);
+ report_id, rep_data, 4);
if (error >= 0)
error = usb_get_report(intf,
WAC_HID_FEATURE_REPORT, report_id,
- rep_data, 3);
+ rep_data, 4);
} while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES);
} else if (features->type != TABLETPC) {
do {