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[v2,5/9] HID: multitouch: ensure that serial devices make no use of contact count

Message ID 1359649351-11092-6-git-send-email-benjamin.tissoires@gmail.com (mailing list archive)
State New, archived
Delegated to: Jiri Kosina
Headers show

Commit Message

Benjamin Tissoires Jan. 31, 2013, 4:22 p.m. UTC 
The serial protocol makes contact count a redondant information, and
sometimes it is not reliable (TRS-Star are in this case).
Disabling the use of contact count for these devices is thus safer.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
---
 drivers/hid/hid-multitouch.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 585a813..86531b1 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -758,6 +758,7 @@  static void mt_post_parse_default_settings(struct mt_device *td)
 		quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
 		quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
 		quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
+		quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
 	}
 
 	td->mtclass.quirks = quirks;