e6a6784627
Today I wondered about /dev/parport<n> after not seeing anything in drivers/parport register char-major-99. Having PP_MAJOR in include/linux/major.h would've allowed me to more quickly determine that it was the ppdev driver driving these. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
99 lines
3.1 KiB
C
99 lines
3.1 KiB
C
/*
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* linux/drivers/char/ppdev.h
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*
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* User-space parallel port device driver (header file).
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*
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* Copyright (C) 1998-9 Tim Waugh <tim@cyberelk.demon.co.uk>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Added PPGETTIME/PPSETTIME, Fred Barnes, 1999
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* Added PPGETMODES/PPGETMODE/PPGETPHASE, Fred Barnes <frmb2@ukc.ac.uk>, 03/01/2001
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*/
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#define PP_IOCTL 'p'
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/* Set mode for read/write (e.g. IEEE1284_MODE_EPP) */
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#define PPSETMODE _IOW(PP_IOCTL, 0x80, int)
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/* Read status */
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#define PPRSTATUS _IOR(PP_IOCTL, 0x81, unsigned char)
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#define PPWSTATUS OBSOLETE__IOW(PP_IOCTL, 0x82, unsigned char)
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/* Read/write control */
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#define PPRCONTROL _IOR(PP_IOCTL, 0x83, unsigned char)
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#define PPWCONTROL _IOW(PP_IOCTL, 0x84, unsigned char)
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struct ppdev_frob_struct {
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unsigned char mask;
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unsigned char val;
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};
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#define PPFCONTROL _IOW(PP_IOCTL, 0x8e, struct ppdev_frob_struct)
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/* Read/write data */
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#define PPRDATA _IOR(PP_IOCTL, 0x85, unsigned char)
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#define PPWDATA _IOW(PP_IOCTL, 0x86, unsigned char)
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/* Read/write econtrol (not used) */
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#define PPRECONTROL OBSOLETE__IOR(PP_IOCTL, 0x87, unsigned char)
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#define PPWECONTROL OBSOLETE__IOW(PP_IOCTL, 0x88, unsigned char)
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/* Read/write FIFO (not used) */
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#define PPRFIFO OBSOLETE__IOR(PP_IOCTL, 0x89, unsigned char)
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#define PPWFIFO OBSOLETE__IOW(PP_IOCTL, 0x8a, unsigned char)
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/* Claim the port to start using it */
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#define PPCLAIM _IO(PP_IOCTL, 0x8b)
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/* Release the port when you aren't using it */
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#define PPRELEASE _IO(PP_IOCTL, 0x8c)
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/* Yield the port (release it if another driver is waiting,
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* then reclaim) */
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#define PPYIELD _IO(PP_IOCTL, 0x8d)
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/* Register device exclusively (must be before PPCLAIM). */
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#define PPEXCL _IO(PP_IOCTL, 0x8f)
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/* Data line direction: non-zero for input mode. */
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#define PPDATADIR _IOW(PP_IOCTL, 0x90, int)
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/* Negotiate a particular IEEE 1284 mode. */
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#define PPNEGOT _IOW(PP_IOCTL, 0x91, int)
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/* Set control lines when an interrupt occurs. */
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#define PPWCTLONIRQ _IOW(PP_IOCTL, 0x92, unsigned char)
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/* Clear (and return) interrupt count. */
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#define PPCLRIRQ _IOR(PP_IOCTL, 0x93, int)
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/* Set the IEEE 1284 phase that we're in (e.g. IEEE1284_PH_FWD_IDLE) */
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#define PPSETPHASE _IOW(PP_IOCTL, 0x94, int)
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/* Set and get port timeout (struct timeval's) */
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#define PPGETTIME _IOR(PP_IOCTL, 0x95, struct timeval)
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#define PPSETTIME _IOW(PP_IOCTL, 0x96, struct timeval)
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/* Get available modes (what the hardware can do) */
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#define PPGETMODES _IOR(PP_IOCTL, 0x97, unsigned int)
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/* Get the current mode and phaze */
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#define PPGETMODE _IOR(PP_IOCTL, 0x98, int)
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#define PPGETPHASE _IOR(PP_IOCTL, 0x99, int)
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/* get/set flags */
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#define PPGETFLAGS _IOR(PP_IOCTL, 0x9a, int)
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#define PPSETFLAGS _IOW(PP_IOCTL, 0x9b, int)
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/* flags visible to the world */
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#define PP_FASTWRITE (1<<2)
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#define PP_FASTREAD (1<<3)
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#define PP_W91284PIC (1<<4)
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/* only masks user-visible flags */
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#define PP_FLAGMASK (PP_FASTWRITE | PP_FASTREAD | PP_W91284PIC)
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