* [PATCH 2/4] input - wacom: don't retrieve touch_max when it is predefined
@ 2012-06-25 21:36 Ping Cheng
0 siblings, 0 replies; only message in thread
From: Ping Cheng @ 2012-06-25 21:36 UTC (permalink / raw)
To: linux-input; +Cc: Ping Cheng, Ping Cheng
Some models, such as 0xE6, report more fingers than we process.
Reported-by: Jonathan Nieder <jrnieder@gmail.com>
Tested-by: Nils Kanning <nils@kanning.de>
Signed-off-by: Ping Cheng <pingc@wacom.com>
---
drivers/input/tablet/wacom_sys.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index c2fb698..2714ce6 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -398,7 +398,9 @@ static int wacom_parse_hid(struct usb_interface *intf,
break;
case HID_USAGE_CONTACTMAX:
- wacom_retrieve_report_data(intf, features);
+ /* leave touch_max as is if predefined */
+ if (!features->touch_max)
+ wacom_retrieve_report_data(intf, features);
i++;
break;
}
--
1.7.7.6
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