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HID: wacom: generic: Clear ABS_MISC when tool leaves proximity

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The tool ID information sent in ABS_MISC is expected to be reset to 0
when a tool leaves proximity. Not doing this can cause problems if a
tool is removed and then re-introduced. Kernel event filtering will
prevent the (identical) ABS_MISC event from being sent when the tool
re-enters proxmity. This can cause userspace to not properly set the
tool ID.

Fixes: f85c9dc678 ("HID: wacom: generic: Support tool ID and additional tool types")
Cc: stable # v4.10 <[email protected]>
Signed-off-by: Ping Cheng <[email protected]>
Signed-off-by: Jason Gerecke <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
This commit is contained in:
Jason Gerecke 2017-09-07 17:47:38 -07:00 • committed by Jiri Kosina
commit 92380b572d
1 changed files with 1 additions and 1 deletions
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2
drivers/hid/wacom_wac.c
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@ -2272,7 +2272,7 @@ static void wacom_wac_pen_report(struct hid_device *hdev,
input_report_key(input, wacom_wac->tool[0], prox);
if (wacom_wac->serial[0]) {
input_event(input, EV_MSC, MSC_SERIAL, wacom_wac->serial[0]);
input_report_abs(input, ABS_MISC, id);
input_report_abs(input, ABS_MISC, prox ? id : 0);
}
wacom_wac->hid_data.tipswitch = false;