LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT constant
int
const LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT
A device has left and is no longer available. It is the user's responsibility to call libusb_close on any handle associated with a disconnected device. It is safe to call libusb_get_device_descriptor on a device that has left
Implementation
static const int LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT = 2;