snd_mixer_elem_callback_t typedef
snd_mixer_elem_callback_t = Pointer<NativeFunction<Int Function(Pointer<snd_mixer_elem_t> elem, UnsignedInt mask)> >
Implementation
typedef snd_mixer_elem_callback_t = ffi.Pointer<
ffi.NativeFunction<
ffi.Int Function(
ffi.Pointer<snd_mixer_elem_t> elem, ffi.UnsignedInt mask)>>;