Function libusb1_sys::libusb_set_pollfd_notifiers

pub unsafe extern "system" fn libusb_set_pollfd_notifiers(
    context: *mut libusb_context,
    added_cb: Option<libusb_pollfd_added_cb>,
    removed_cb: Option<libusb_pollfd_removed_cb>,
    user_data: *mut c_void
)