LXR linux/include/linux/toshiba.h

   1/* toshiba.h -- Linux driver for accessing the SMM on Toshiba laptops 
   2 *
   3 * Copyright (c) 1996-2000  Jonathan A. Buzzard (jonathan@buzzard.org.uk)
   4 *
   5 * Thanks to Juergen Heinzl <juergen@monocerus.demon.co.uk> for the pointers
   6 * on making sure the structure is aligned and packed.
   7 *
   8 * This program is free software; you can redistribute it and/or modify it
   9 * under the terms of the GNU General Public License as published by the
  10 * Free Software Foundation; either version 2, or (at your option) any
  11 * later version.
  12 *
  13 * This program is distributed in the hope that it will be useful, but
  14 * WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 * General Public License for more details.
  17 *
  18 */
  19
  20#ifndef _LINUX_TOSHIBA_H
  21#define _LINUX_TOSHIBA_H
  22
  23#define TOSH_PROC "/proc/toshiba"
  24#define TOSH_DEVICE "/dev/toshiba"
  25#define TOSH_SMM _IOWR('t', 0x90, int)  /* broken: meant 24 bytes */
  26
  27typedef struct {
  28        unsigned int eax;
  29        unsigned int ebx __attribute__ ((packed));
  30        unsigned int ecx __attribute__ ((packed));
  31        unsigned int edx __attribute__ ((packed));
  32        unsigned int esi __attribute__ ((packed));
  33        unsigned int edi __attribute__ ((packed));
  34} SMMRegisters;
  35
  36int tosh_smm(SMMRegisters *regs);
  37
  38#endif
  39