92  * usb_register_dev - register a USB device, and ask for a minor number
97  * If CONFIG_USB_DYNAMIC_MINORS is enabled, the minor number will be
99  * enabled, the minor number will be based on the next available free minor,
105  * the minor numbers given out by this function.
115 	int minor;  in usb_register_dev()  local
122 	 * no holes in the minor range.  in usb_register_dev()
129 	if (intf->minor >= 0)  in usb_register_dev()
132 	dev_dbg(&intf->dev, "looking for a minor, starting at %d\n", minor_base);  in usb_register_dev()
135 	for (minor = minor_base; minor < MAX_USB_MINORS; ++minor) {  in usb_register_dev()
136 		if (usb_minors[minor])  in usb_register_dev()
139 		usb_minors[minor] = class_driver->fops;  in usb_register_dev()
140 		intf->minor = minor;  in usb_register_dev()
143 	if (intf->minor < 0) {  in usb_register_dev()
149 	snprintf(name, sizeof(name), class_driver->name, minor - minor_base);  in usb_register_dev()
151 				      MKDEV(USB_MAJOR, minor), class_driver,  in usb_register_dev()
154 		usb_minors[minor] = NULL;  in usb_register_dev()
155 		intf->minor = -1;  in usb_register_dev()
164  * usb_deregister_dev - deregister a USB device's dynamic minor.
169  * when the USB driver is finished with the minor numbers gotten from a
180 	if (intf->minor == -1)  in usb_deregister_dev()
183 	dev_dbg(&intf->dev, "removing %d minor\n", intf->minor);  in usb_deregister_dev()
184 	device_destroy(&usbmisc_class, MKDEV(USB_MAJOR, intf->minor));  in usb_deregister_dev()
187 	usb_minors[intf->minor] = NULL;  in usb_deregister_dev()
191 	intf->minor = -1;  in usb_deregister_dev()