backport: HID: wacom: leds: Don't try to control the EKR's read-only LEDs
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PATCH 2/10 backport: HID: wacom: leds: Don't try to control the EKR's read-only LEDs
From: Aaron Armstrong Skomra <[email protected]>
Commit a50aac7193f1 introduces 'led.groups' and adds EKR support for these groups. However, unlike the other devices with LEDs, the EKR's LEDs are read-only and we shouldn't attempt to control them in wacom_led_control().
See bug: https://sourceforge.net/p/linuxwacom/bugs/342/
Fixes a50aac7193f1 ("backport: HID: wacom: leds: dynamically allocate LED groups")
Cc stable <[email protected]> # 4.9
Signed-off-by Aaron Armstrong Skomra <[email protected]>
Reviewed-by Jason Gerecke <[email protected]>
Signed-off-by Jiri Kosina <[email protected]>
[[email protected]: Imported into input-wacom repository (74aebed6dc)]
Signed-off-by Jason Gerecke <[email protected]>
[[email protected]: Backported from input-wacom repository (7a69536)]
Signed-off-by Jason Gerecke <[email protected]>
--- 3.17/wacom_sys.c | 3 +++ 1 file changed, 3 insertions(+)
3.17/wacom_sys.c +3 -0
@@ -794,6 +794,9 @@ static int wacom_led_control(struct wacom *wacom)if (!wacom->led.groups)return -ENOTSUPP ; +if (wacom->wacom_wac.features.type ==REMOTE ) +return -ENOTSUPP ; +if (wacom->wacom_wac.pid) {/* wireless connected */ report_id =WAC_CMD_WL_LED_CONTROL ; buf_size =13 ;
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2.14.1