Hi, Tzung-Bi I will release v3 version base on your suggestion Thank you for your reply Ajye Tzung-Bi Shih <tzungbi@xxxxxxxxxx> 於 2020年10月30日 週五 下午7:19寫道: > > On Fri, Oct 30, 2020 at 6:55 PM Ajye Huang > <ajye_huang@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > But dmic_get() will need dmic_switch, should i keep dmic_switch? > > I see. I overlooked it. You can keep the dmic_switch for this > purpose or just call gpiod_get_value_cansleep().