1 /* $NetBSD: drvctl_component.c,v 1.5 2022/03/28 12:33:22 riastradh 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 1.5 2022/03/28 12:33:22 riastradh 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
RUMP_COMPONENT(RUMP_COMPONENT_DEV)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 devsw_detach(NULL, &drvctl_cdevsw);
55 }
56