1 /* $NetBSD: dtrace_modevent.c,v 1.3 2010/03/13 22:31:15 christos Exp $ */ 2 3 /* 4 * CDDL HEADER START 5 * 6 * The contents of this file are subject to the terms of the 7 * Common Development and Distribution License (the "License"). 8 * You may not use this file except in compliance with the License. 9 * 10 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11 * or http://www.opensolaris.org/os/licensing. 12 * See the License for the specific language governing permissions 13 * and limitations under the License. 14 * 15 * When distributing Covered Code, include this CDDL HEADER in each 16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17 * If applicable, add the following below this CDDL HEADER, with the 18 * fields enclosed by brackets "[]" replaced with your own identifying 19 * information: Portions Copyright [yyyy] [name of copyright owner] 20 * 21 * CDDL HEADER END 22 * 23 * $FreeBSD: src/sys/cddl/dev/dtrace/dtrace_modevent.c,v 1.1.4.1 2009/08/03 08:13:06 kensmith Exp $ 24 * 25 */ 26 27 /* ARGSUSED */ 28 static int 29 dtrace_modcmd(modcmd_t cmd, void *data) 30 { 31 int bmajor = -1, cmajor = -1; 32 33 switch (cmd) { 34 case MODULE_CMD_INIT: 35 dtrace_load(NULL); 36 return devsw_attach("dtrace", NULL, &bmajor, 37 &dtrace_cdevsw, &cmajor); 38 case MODULE_CMD_FINI: 39 dtrace_unload(); 40 return devsw_detach(NULL, &dtrace_cdevsw); 41 default: 42 return ENOTTY; 43 } 44 } 45