diff options
author | phk <phk@FreeBSD.org> | 1999-05-31 11:29:30 +0000 |
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committer | phk <phk@FreeBSD.org> | 1999-05-31 11:29:30 +0000 |
commit | 6a5dc97620c08ad609e1b3c3c042f150feb46dd3 (patch) | |
tree | 6cfc9338ae83f67fd38a853cd0782713c73cad13 /sys/i386/isa/tw.c | |
parent | 881e2636833297a207a791fabd8befc818b1b3fb (diff) | |
download | FreeBSD-src-6a5dc97620c08ad609e1b3c3c042f150feb46dd3.zip FreeBSD-src-6a5dc97620c08ad609e1b3c3c042f150feb46dd3.tar.gz |
Simplify cdevsw registration.
The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it. cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.
cdevsw_add() will print an message if the d_maj field looks bogus.
Remove nblkdev and nchrdev variables. Most places they were used
bogusly. Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.
Move bdevsw() and devsw() functions to kern/kern_conf.c
Bump __FreeBSD_version to 400006
This commit removes:
72 bogus makedev() calls
26 bogus SYSINIT functions
if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.
I4b and vinum not changed. Patches emailed to authors. LINT
probably broken until they catch up.
Diffstat (limited to 'sys/i386/isa/tw.c')
-rw-r--r-- | sys/i386/isa/tw.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/sys/i386/isa/tw.c b/sys/i386/isa/tw.c index 3385a85..c7de9d3 100644 --- a/sys/i386/isa/tw.c +++ b/sys/i386/isa/tw.c @@ -359,7 +359,10 @@ static int twprobe(idp) struct tw_sc sc; int d; int tries; + static int once; + if (!once++) + cdevsw_add(&tw_cdevsw); sc.sc_port = idp->id_iobase; /* Search for the zero crossing signal at ports, bit combinations. */ tw_zcport = tw_control; @@ -1168,21 +1171,4 @@ static int twchecktime(int target, int tol) } #endif /* HIRESTIME */ - -static int tw_devsw_installed; - -static void tw_drvinit(void *unused) -{ - dev_t dev; - - if( ! tw_devsw_installed ) { - dev = makedev(CDEV_MAJOR, 0); - cdevsw_add(&dev,&tw_cdevsw, NULL); - tw_devsw_installed = 1; - } -} - -SYSINIT(twdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,tw_drvinit,NULL) - - #endif /* NTW */ |