1 /* $NetBSD: hello.c,v 1.1 2015/05/13 07:07:36 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2015 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: hello.c,v 1.1 2015/05/13 07:07:36 pgoyette Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/module.h> 34 35 /* 36 * Last parameter of MODULE macro is a list of names (as string; names are 37 * separated by commas) of dependencies. If module has no dependencies, 38 * then NULL should be passed. 39 */ 40 41 MODULE(MODULE_CLASS_MISC, hello, NULL); 42 43 static int 44 hello_modcmd(modcmd_t cmd, void *arg __unused) 45 { 46 switch (cmd) { 47 case MODULE_CMD_INIT: 48 printf("Example module loaded.\n"); 49 break; 50 51 case MODULE_CMD_FINI: 52 printf("Example module unloaded.\n"); 53 break; 54 55 case MODULE_CMD_STAT: 56 printf("Example module status queried.\n"); 57 break; 58 59 default: 60 return ENOTTY; 61 } 62 63 return 0; 64 } 65