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Input: wacom - report id 3 returns 4 bytes of data

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Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Ping Cheng 2011-08-16 00:17:57 -07:00 committed by Dmitry Torokhov
parent a417ea4432
commit 3b48c91cdf
1 changed files with 6 additions and 4 deletions
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10
drivers/input/tablet/wacom_sys.c
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@ -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 {