diff options
| author | Forest Bond <forest@alittletooquiet.net> | 2010-07-13 23:50:57 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-07-13 23:50:57 +0200 |
| commit | 8c8b01c38a70661d663175d355fdea85ca082272 (patch) | |
| tree | 6e0e06d1354a32f2ea313306a3fc8360b177472d /drivers/hid | |
| parent | a11b3fab94d4fb67297b76d0cb81612ebbff276e (diff) | |
| download | lwn-8c8b01c38a70661d663175d355fdea85ca082272.tar.gz lwn-8c8b01c38a70661d663175d355fdea85ca082272.zip | |
HID: ignore digitizer usage Undefined (0x00)
SMART Technologies has recommended this change to fix a problem reported
with SMART Board series interactive whiteboards.
A description of the device-specific symptom follows:
When the board is connected my mouse bounces up to the top left corner.
Bjorn has tested this fix with model SB680.
Tested-by: Bjorn Behrendt <bbehrendt@msjvermont.org>
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-input.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 7a0d2e4661a1..6b10e5afe770 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -301,6 +301,9 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel case HID_UP_DIGITIZER: switch (usage->hid & 0xff) { + case 0x00: /* Undefined */ + goto ignore; + case 0x30: /* TipPressure */ if (!test_bit(BTN_TOUCH, input->keybit)) { device->quirks |= HID_QUIRK_NOTOUCH; |