1 /* 2 * USB Debug cable driver 3 * 4 * Copyright (C) 2006 Greg Kroah-Hartman <greg@kroah.com> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License version 8 * 2 as published by the Free Software Foundation. 9 */ 10 11 #include <linux/kernel.h> 12 #include <linux/init.h> 13 #include <linux/tty.h> 14 #include <linux/module.h> 15 #include <linux/usb.h> 16 #include <linux/usb/serial.h> 17 18 #define USB_DEBUG_MAX_PACKET_SIZE 8 19 20 static struct usb_device_id id_table [] = { 21 { USB_DEVICE(0x0525, 0x127a) }, 22 { }, 23 }; 24 MODULE_DEVICE_TABLE(usb, id_table); 25 26 static struct usb_driver debug_driver = { 27 .name = "debug", 28 .probe = usb_serial_probe, 29 .disconnect = usb_serial_disconnect, 30 .id_table = id_table, 31 .no_dynamic_id = 1, 32 }; 33 34 int usb_debug_open(struct usb_serial_port *port, struct file *filp) 35 { 36 port->bulk_out_size = USB_DEBUG_MAX_PACKET_SIZE; 37 return usb_serial_generic_open(port, filp); 38 } 39 40 static struct usb_serial_driver debug_device = { 41 .driver = { 42 .owner = THIS_MODULE, 43 .name = "debug", 44 }, 45 .id_table = id_table, 46 .num_ports = 1, 47 .open = usb_debug_open, 48 }; 49 50 static int __init debug_init(void) 51 { 52 int retval; 53 54 retval = usb_serial_register(&debug_device); 55 if (retval) 56 return retval; 57 retval = usb_register(&debug_driver); 58 if (retval) 59 usb_serial_deregister(&debug_device); 60 return retval; 61 } 62 63 static void __exit debug_exit(void) 64 { 65 usb_deregister(&debug_driver); 66 usb_serial_deregister(&debug_device); 67 } 68 69 module_init(debug_init); 70 module_exit(debug_exit); 71 MODULE_LICENSE("GPL"); 72