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 * linux/drivers/char/ppdev.h
 * User-space parallel port device driver (header file).
 * Copyright (C) 1998-9 Tim Waugh <tim@cyberelk.demon.co.uk>
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.

/* Some hacks to make parport.c compile with (YUCK! ;) ) 2.2 kernels */
#include <linux/parport.h>
#ifndef IEEE1284_MODE_NIBBLE
#define IEEE1284_MODE_NIBBLE  0
#define IEEE1284_MODE_BYTE    (1<<0)
#define IEEE1284_MODE_COMPAT  (1<<8)
#define IEEE1284_DEVICEID     (1<<2)

#define PP_MAJOR  99

#define PP_IOCTL  'p'

/* Set mode for read/write (e.g. IEEE1284_MODE_EPP) */
#define PPSETMODE _IOW(PP_IOCTL, 0x80, int)

/* Read status */
#define PPRSTATUS _IOR(PP_IOCTL, 0x81, unsigned char)
#define PPWSTATUS OBSOLETE__IOW(PP_IOCTL, 0x82, unsigned char)

/* Read/write control */
#define PPRCONTROL      _IOR(PP_IOCTL, 0x83, unsigned char)
#define PPWCONTROL      _IOW(PP_IOCTL, 0x84, unsigned char)

00039 struct ppdev_frob_struct {
      unsigned char mask;
      unsigned char val;
#define PPFCONTROL      _IOW(PP_IOCTL, 0x8e, struct ppdev_frob_struct)

/* Read/write data */
#define PPRDATA         _IOR(PP_IOCTL, 0x85, unsigned char)
#define PPWDATA         _IOW(PP_IOCTL, 0x86, unsigned char)

/* Read/write econtrol (not used) */
#define PPRECONTROL     OBSOLETE__IOR(PP_IOCTL, 0x87, unsigned char)
#define PPWECONTROL     OBSOLETE__IOW(PP_IOCTL, 0x88, unsigned char)

/* Read/write FIFO (not used) */
#define PPRFIFO         OBSOLETE__IOR(PP_IOCTL, 0x89, unsigned char)
#define PPWFIFO         OBSOLETE__IOW(PP_IOCTL, 0x8a, unsigned char)

/* Claim the port to start using it */
#define PPCLAIM         _IO(PP_IOCTL, 0x8b)

/* Release the port when you aren't using it */
#define PPRELEASE _IO(PP_IOCTL, 0x8c)

/* Yield the port (release it if another driver is waiting,
 * then reclaim) */
#define PPYIELD         _IO(PP_IOCTL, 0x8d)

/* Register device exclusively (must be before PPCLAIM). */
#define PPEXCL          _IO(PP_IOCTL, 0x8f)

/* Data line direction: non-zero for input mode. */
#define PPDATADIR _IOW(PP_IOCTL, 0x90, int)

/* Negotiate a particular IEEE 1284 mode. */
#define PPNEGOT         _IOW(PP_IOCTL, 0x91, int)
#define PPREG           _IO(PP_IOCTL, 0x92)

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