Function libusb1_sys::libusb_hotplug_register_callback

pub unsafe extern "system" fn libusb_hotplug_register_callback(
    ctx: *mut libusb_context,
    events: c_int,
    flags: c_int,
    vendor_id: c_int,
    product_id: c_int,
    dev_class: c_int,
    cb_fn: libusb_hotplug_callback_fn,
    user_data: *mut c_void,
    callback_handle: *mut libusb_hotplug_callback_handle
) -> c_int