diff options
| author | Aaron Armstrong Skomra <aaron.skomra@wacom.com> | 2023-07-25 15:20:25 -0700 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2023-08-14 11:43:57 +0200 |
| commit | 9ac6678b95b0dd9458a7a6869f46e51cd55a1d84 (patch) | |
| tree | 56e9a7ac651b57bf8253d727dc569d53b67ef0bb /drivers/hid/wacom_wac.c | |
| parent | 1d7546042f8fdc4bc39ab91ec966203e2d64f8bd (diff) | |
HID: wacom: remove the battery when the EKR is off
Currently the EKR battery remains even after we stop getting information
from the device. This can lead to a stale battery persisting indefinitely
in userspace.
The remote sends a heartbeat every 10 seconds. Delete the battery if we
miss two heartbeats (after 21 seconds). Restore the battery once we see
a heartbeat again.
Signed-off-by: Aaron Skomra <skomra@gmail.com>
Signed-off-by: Aaron Armstrong Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Fixes: 9f1015d45f62 ("HID: wacom: EKR: attach the power_supply on first connection")
CC: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/wacom_wac.c')
| -rw-r--r-- | drivers/hid/wacom_wac.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 174bf03908d7..6c056f8844e7 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -1134,6 +1134,7 @@ static int wacom_remote_irq(struct wacom_wac *wacom_wac, size_t len) if (index < 0 || !remote->remotes[index].registered) goto out; + remote->remotes[i].active_time = ktime_get(); input = remote->remotes[index].input; input_report_key(input, BTN_0, (data[9] & 0x01)); |