alsa_sys

Function snd_mixer_selem_ask_capture_dB_vol

Source 
pub unsafe extern "C" fn snd_mixer_selem_ask_capture_dB_vol(
    elem: *mut snd_mixer_elem_t,
    dBvalue: c_long,
    dir: c_int,
    value: *mut c_long,
) -> c_int