libusb_hotplug_callback_handle typedef
libusb_hotplug_callback_handle = Int
\ingroup libusb_hotplug Callback handle.
Callbacks handles are generated by libusb_hotplug_register_callback() and can be used to deregister callbacks. Callback handles are unique per libusb_context and it is safe to call libusb_hotplug_deregister_callback() on an already deregistered callback.
Since version 1.0.16, \ref LIBUSB_API_VERSION >= 0x01000102
For more information, see \ref libusb_hotplug.
Implementation
typedef libusb_hotplug_callback_handle = ffi.Int;