Commit 8c8b01c3 authored Jul 13, 2010 by Forest Bond Committed by Jiri Kosina Jul 13, 2010

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>

parent a11b3fab

drivers/hid/hid-input.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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;