led_classdev_unregister(&kbd_led);
}
+static int dell_laptop_notifier_call(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ switch (action) {
+ case DELL_LAPTOP_KBD_BACKLIGHT_BRIGHTNESS_CHANGED:
+ if (!kbd_led_present)
+ break;
+
+ led_classdev_notify_brightness_hw_changed(&kbd_led,
+ kbd_led_level_get(&kbd_led));
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block dell_laptop_notifier = {
+ .notifier_call = dell_laptop_notifier_call,
+};
+
+ int dell_micmute_led_set(int state)
+ {
+ struct calling_interface_buffer *buffer;
+ struct calling_interface_token *token;
+
+ if (state == 0)
+ token = dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE);
+ else if (state == 1)
+ token = dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE);
+ else
+ return -EINVAL;
+
+ if (!token)
+ return -ENODEV;
+
+ buffer = dell_smbios_get_buffer();
+ buffer->input[0] = token->location;
+ buffer->input[1] = token->value;
+ dell_smbios_send_request(1, 0);
+ dell_smbios_release_buffer();
+
+ return state;
+ }
+ EXPORT_SYMBOL_GPL(dell_micmute_led_set);
+
static int __init dell_init(void)
{
struct calling_interface_buffer *buffer;