[PATCH 2/2] Sync Fn-lock state on button press for Compact and TrackPoint II keyboards
From: ValdikSS <hidden>
Date: 2021-10-17 08:38:43
Subsystem:
hid core layer, lenovo hid drivers, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Derek J. Clark, Mark Pearson, Linus Torvalds
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. Signed-off-by: ValdikSS <redacted> --- 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 498246cab..62561fb9f 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c@@ -695,6 +695,15 @@ 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; }
--
2.31.1