drivers/usb/serial/hp4x.c

   1 /*
   2  * HP4x Calculators Serial USB driver
   3  *
   4  * Copyright (C) 2005 Arthur Huillet (ahuillet@users.sf.net)
   5  * Copyright (C) 2001-2005 Greg Kroah-Hartman (greg@kroah.com)
   6  *
   7  *      This program is free software; you can redistribute it and/or modify
   8  *      it under the terms of the GNU General Public License as published by
   9  *      the Free Software Foundation; either version 2 of the License, or
  10  *      (at your option) any later version.
  11  *
  12  * See Documentation/usb/usb-serial.txt for more information on using this
  13  * driver
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/tty.h>
  19 #include <linux/module.h>
  20 #include <linux/usb.h>
  21 #include <linux/usb/serial.h>
  22
  23 /*
  24  * Version Information
  25  */
  26 #define DRIVER_VERSION "v1.00"
  27 #define DRIVER_DESC "HP4x (48/49) Generic Serial driver"
  28
  29 #define HP_VENDOR_ID 0x03f0
  30 #define HP49GP_PRODUCT_ID 0x0121
  31
  32 static struct usb_device_id id_table [] = {
  33         { USB_DEVICE(HP_VENDOR_ID, HP49GP_PRODUCT_ID) },
  34         { }                                     /* Terminating entry */
  35 };
  36
  37 MODULE_DEVICE_TABLE(usb, id_table);
  38
  39 static struct usb_driver hp49gp_driver = {
  40         .name =         "hp4X",
  41         .probe =        usb_serial_probe,
  42         .disconnect =   usb_serial_disconnect,
  43         .id_table =     id_table,
  44         .no_dynamic_id =        1,
  45 };
  46
  47 static struct usb_serial_driver hp49gp_device = {
  48         .driver = {
  49                 .owner =        THIS_MODULE,
  50                 .name =         "hp4X",
  51         },
  52         .id_table =             id_table,
  53         .usb_driver =           &hp49gp_driver,
  54         .num_ports =            1,
  55 };
  56
  57 static int __init hp49gp_init(void)
  58 {
  59         int retval;
  60         retval = usb_serial_register(&hp49gp_device);
  61         if (retval)
  62                 goto failed_usb_serial_register;
  63         retval = usb_register(&hp49gp_driver);
  64         if (retval)
  65                 goto failed_usb_register;
  66         info(DRIVER_DESC " " DRIVER_VERSION);
  67         return 0;
  68 failed_usb_register:
  69         usb_serial_deregister(&hp49gp_device);
  70 failed_usb_serial_register:
  71         return retval;
  72 }
  73
  74 static void __exit hp49gp_exit(void)
  75 {
  76         usb_deregister(&hp49gp_driver);
  77         usb_serial_deregister(&hp49gp_device);
  78 }
  79
  80 module_init(hp49gp_init);
  81 module_exit(hp49gp_exit);
  82
  83 MODULE_DESCRIPTION(DRIVER_DESC);
  84 MODULE_VERSION(DRIVER_VERSION);
  85 MODULE_LICENSE("GPL");