1 /*- 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. 9 * 10 * %sccs.include.redist.c% 11 * 12 * from: @(#)kern_physio.c 8.1 (Berkeley) 6/10/93 13 */ 14 15 #include <sys/param.h> 16 #include <sys/systm.h> 17 #include <sys/buf.h> 18 #include <sys/conf.h> 19 #include <sys/proc.h> 20 21 physio(a1, a2, a3, a4, a5, a6) 22 int (*a1)(); 23 struct buf *a2; 24 dev_t a3; 25 int a4; 26 u_int (*a5)(); 27 struct uio *a6; 28 { 29 30 /* 31 * Body deleted. 32 */ 33 return (EIO); 34 } 35 36 u_int 37 minphys(a1) 38 struct buf *a1; 39 { 40 41 /* 42 * Body deleted. 43 */ 44 return (0); 45 } 46 47 /* 48 * Do a read on a device for a user process. 49 */ 50 rawread(dev, uio) 51 dev_t dev; 52 struct uio *uio; 53 { 54 return (physio(cdevsw[major(dev)].d_strategy, (struct buf *)NULL, 55 dev, B_READ, minphys, uio)); 56 } 57 58 /* 59 * Do a write on a device for a user process. 60 */ 61 rawwrite(dev, uio) 62 dev_t dev; 63 struct uio *uio; 64 { 65 return (physio(cdevsw[major(dev)].d_strategy, (struct buf *)NULL, 66 dev, B_WRITE, minphys, uio)); 67 } 68