pub unsafe extern "C" fn snd_mixer_elem_attach(
melem: *mut snd_mixer_elem_t,
helem: *mut snd_hctl_elem_t,
) -> c_int
pub unsafe extern "C" fn snd_mixer_elem_attach(
melem: *mut snd_mixer_elem_t,
helem: *mut snd_hctl_elem_t,
) -> c_int