include/linux/brlvger.h

   1 /*
   2  *      Tieman Voyager braille display USB driver.
   3  *
   4  *      Copyright 2001-2002 Stephane Dalton <sdalton@videotron.ca>
   5  *                      and Stéphane Doyon  <s.doyon@videotron.ca>
   6  *            Maintained by Stéphane Doyon  <s.doyon@videotron.ca>.
   7  */
   8 /*
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #ifndef _LINUX_BRLVGER_H
  25 #define _LINUX_BRLVGER_H
  26
  27 /* Ioctl request codes */
  28 #define BRLVGER_GET_INFO        0
  29 #define BRLVGER_DISPLAY_ON      2
  30 #define BRLVGER_DISPLAY_OFF     3
  31 #define BRLVGER_BUZZ            4
  32
  33 /* Base minor for the char devices */
  34 #define BRLVGER_MINOR           128
  35
  36 /* Size of some fields */
  37 #define BRLVGER_HWVER_SIZE      2
  38 #define BRLVGER_FWVER_SIZE      200 /* arbitrary, a long string */
  39 #define BRLVGER_SERIAL_BIN_SIZE 8
  40 #define BRLVGER_SERIAL_SIZE     ((2*BRLVGER_SERIAL_BIN_SIZE)+1)
  41
  42 struct brlvger_info {
  43         __u8 driver_version[12];
  44         __u8 driver_banner[200];
  45
  46         __u32 display_length;
  47         /* All other char[] fields are strings except this one.
  48            Hardware version: first byte is major, second byte is minor. */
  49         __u8 hwver[BRLVGER_HWVER_SIZE];
  50         __u8 fwver[BRLVGER_FWVER_SIZE];
  51         __u8 serialnum[BRLVGER_SERIAL_SIZE];
  52 };
  53
  54 #endif