1 /* 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)ppiioctl.h 7.1 (Berkeley) 11/03/90 8 */ 9 10 #ifndef _IOCTL_ 11 #ifdef KERNEL 12 #include "ioctl.h" 13 #else 14 #include <sys/ioctl.h> 15 #endif 16 #endif 17 18 struct ppiparam { 19 int burst; /* chars to send/recv in one call */ 20 int timo; /* timeout: -1 blocking, 0 non-blocking, >0 msec */ 21 int delay; /* delay between polls (msec) */ 22 }; 23 24 #define PPI_BLOCK -1 25 #define PPI_NOBLOCK 0 26 27 /* default values */ 28 #define PPI_BURST 1024 29 #define PPI_TIMO PPI_BLOCK 30 #define PPI_DELAY 10 31 32 /* limits */ 33 #define PPI_BURST_MIN 1 34 #define PPI_BURST_MAX 1024 35 #define PPI_DELAY_MIN 0 36 #define PPI_DELAY_MAX 30000 37 38 #define PPIIOCSPARAM _IOW('P', 0x1, struct ppiparam) 39 #define PPIIOCGPARAM _IOR('P', 0x2, struct ppiparam) 40 #define PPIIOCSSEC _IOW('P', 0x3, int) 41