alsa_sys

Function snd_ctl_convert_to_dB

Source
pub unsafe extern "C" fn snd_ctl_convert_to_dB(
    ctl: *mut snd_ctl_t,
    id: *const snd_ctl_elem_id_t,
    volume: c_long,
    db_gain: *mut c_long,
) -> c_int