diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/alpha/alpha/conf.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/sys/arch/alpha/alpha/conf.c b/sys/arch/alpha/alpha/conf.c index 6cb3cb311a0..f2a566cfda7 100644 --- a/sys/arch/alpha/alpha/conf.c +++ b/sys/arch/alpha/alpha/conf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: conf.c,v 1.8 1996/10/30 22:38:00 niklas Exp $ */ +/* $OpenBSD: conf.c,v 1.9 1996/11/06 02:01:08 deraadt Exp $ */ /* $NetBSD: conf.c,v 1.16 1996/10/18 21:26:57 cgd Exp $ */ /*- @@ -270,3 +270,21 @@ chrtoblk(dev) return (NODEV); return (makedev(blkmaj, minor(dev))); } + +/* + * Convert a character device number to a block device number. + */ +dev_t +blktochr(dev) + dev_t dev; +{ + int blkmaj = major(dev); + int i; + + if (blkmaj >= nblkdev) + return (NODEV); + for (i = 0; i < sizeof(chrtoblktbl)/sizeof(chrtoblktbl[0]); i++) + if (blkmaj == chrtoblktbl[i]) + return (makedev(i, minor(dev))); + return (NODEV); +} |