libusb_hotplug_deregister_callback  257 third_party/libusb/src/libusb/hotplug.c 			libusb_hotplug_deregister_callback(ctx,
libusb_hotplug_deregister_callback 1954 third_party/libusb/src/libusb/libusb.h void LIBUSB_CALL libusb_hotplug_deregister_callback(libusb_context *ctx,