1 /* 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)ppiioctl.h 7.2 (Berkeley) 12/16/90 34 * $NetBSD: parioctl.h,v 1.1 1998/08/07 16:16:37 minoura Exp $ 35 */ 36 37 #ifndef _IOCTL_ 38 #include <sys/ioctl.h> 39 #endif 40 41 struct parparam { 42 int burst; /* chars to send/recv in one call */ 43 int timo; /* timeout: -1 blocking, 0 non-blocking, >0 msec */ 44 int delay; /* delay between polls (msec) */ 45 }; 46 47 #define PAR_BLOCK -1 48 #define PAR_NOBLOCK 0 49 50 /* default values */ 51 #define PAR_BURST 1024 52 #define PAR_TIMO PAR_BLOCK 53 #define PAR_DELAY 10 54 55 /* limits */ 56 #define PAR_BURST_MIN 1 57 #define PAR_BURST_MAX 1024 58 #define PAR_DELAY_MIN 0 59 #define PAR_DELAY_MAX 30000 60 61 #define PARIOCSPARAM _IOW('P', 0x1, struct parparam) 62 #define PARIOCGPARAM _IOR('P', 0x2, struct parparam) 63