Messages in this thread Patch in this message | | | From | Florian Klink <> | Subject | [PATCH v4 2/3] HID: lenovo: Sync Fn-lock state on button press for Compact and TrackPoint II keyboards | Date | Sun, 13 Feb 2022 22:49:23 +0100 |
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From: ValdikSS <iam@valdikss.org.ru>
When Fn-Esc is pressed on the keyboard, it emits the scancode which could be used to sync the fn_lock sysfs state.
Previously fn_lock only allowed to set new Fn-lock state and did not keep the value in sync upon Fn-Esc press, which is now fixed.
Signed-off-by: Florian Klink <flokli@flokli.de> --- drivers/hid/hid-lenovo.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c index a612ae7dfbfc..e9466ae8a9cb 100644 --- a/drivers/hid/hid-lenovo.c +++ b/drivers/hid/hid-lenovo.c @@ -690,6 +690,15 @@ static int lenovo_event_cptkbd(struct hid_device *hdev, return 1; } + if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) { + /* + * The user has toggled the Fn-lock state. Toggle our own + * cached value of it and sync our value to the keyboard to + * ensure things are in sync (the syncing should be a no-op). + */ + cptkbd_data->fn_lock = !cptkbd_data->fn_lock; + } + return 0; } -- 2.35.1
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