Function libpulse_sys::context::introspect::pa_context_get_sink_info_by_index

pub unsafe extern "C" fn pa_context_get_sink_info_by_index(
    c: *mut pa_context, 
    idx: u32, 
    cb: pa_sink_info_cb_t, 
    userdata: *mut c_void
) -> *mut pa_operation