1 /* $NetBSD: drvctl_component.c,v 1.4 2017/01/15 01:48:05 pgoyette Exp $ */ 2 3 /* 4 * Copyright (c) 2010 Antti Kantee. All Rights Reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: drvctl_component.c,v 1.4 2017/01/15 01:48:05 pgoyette Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/conf.h> 33 #include <sys/device.h> 34 #include <sys/stat.h> 35 36 #include <rump-sys/kern.h> 37 #include <rump-sys/vfs.h> 38 39 RUMP_COMPONENT(RUMP_COMPONENT_DEV) 40 { 41 extern const struct cdevsw drvctl_cdevsw; 42 devmajor_t bmaj, cmaj; 43 int error; 44 45 bmaj = cmaj = NODEVMAJOR; 46 error = devsw_attach("drvctl", NULL, &bmaj, &drvctl_cdevsw, &cmaj); 47 if (error != 0) 48 panic("drvctl devsw attach failed: %d", error); 49 50 error = rump_vfs_makeonedevnode(S_IFCHR, "/dev/drvctl", cmaj, 0); 51 if ( error !=0) 52 panic("cannot create drvctl device node: %d", error); 53 54 error = devsw_detach(NULL, &drvctl_cdevsw); 55 if (error != 0) 56 panic("cannot detach drvctl devsw: %d", error); 57 } 58