On Mon, Mar 01, 2021 at 05:38:34PM +0800, Perry Yuan wrote:

> +	/* Micmute LED state changed by muted/unmute switch */
> +	if (mc->invert) {
> +		if (ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1]) {
> +			micmute_led = LED_OFF;
> +		} else {
> +			micmute_led = LED_ON;
> +		}
> +		ledtrig_audio_set(LED_AUDIO_MICMUTE, micmute_led);
> +	}

These conditionals on inversion seem weird and counterintuitive.  If
we're going with this approach it would probably be clearer to define a
custom operation for the affected controls that wraps the standard one
and adds the LED setting rather than keying off invert like this.