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| author | njl <njl@FreeBSD.org> | 2005-04-04 15:37:59 +0000 |
|---|---|---|
| committer | njl <njl@FreeBSD.org> | 2005-04-04 15:37:59 +0000 |
| commit | f9c3ff58ce75f8b20055bb559bd6d108e55c0fda (patch) | |
| tree | 7530240c0fdaceec4da4448f1c4391f2de942411 | |
| parent | 8a0ce01e9200c604139b76b5addc40a3f6e8dd01 (diff) | |
| download | FreeBSD-src-f9c3ff58ce75f8b20055bb559bd6d108e55c0fda.zip FreeBSD-src-f9c3ff58ce75f8b20055bb559bd6d108e55c0fda.tar.gz | |
Document that devclass_get_maxunit(9) returns one greater than the current
highest unit.
Reviewed by: dfr
MFC after: 2 weeks
| -rw-r--r-- | share/man/man9/devclass_get_maxunit.9 | 8 | ||||
| -rw-r--r-- | sys/kern/subr_bus.c | 3 |
2 files changed, 8 insertions, 3 deletions
diff --git a/share/man/man9/devclass_get_maxunit.9 b/share/man/man9/devclass_get_maxunit.9 index 75fb90f..bcfb222 100644 --- a/share/man/man9/devclass_get_maxunit.9 +++ b/share/man/man9/devclass_get_maxunit.9 @@ -28,7 +28,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 16, 1998 +.Dd April 3, 2005 .Dt DEVCLASS_GET_MAXUNIT 9 .Os .Sh NAME @@ -40,12 +40,14 @@ .Ft int .Fn devclass_get_maxunit "devclass_t dc" .Sh DESCRIPTION -Returns the maximum unit number allocated to device instances in the -specified +Returns the next unit number to be allocated to device instances in the .Dv devclass . +This is one greater than the highest currently allocated unit. .Sh SEE ALSO .Xr devclass 9 , .Xr device 9 .Sh AUTHORS This man page was written by .An Doug Rabson . +.Sh BUGS +The name is confusing since it is one greater than the maximum unit. diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c index 16a2609..438209f 100644 --- a/sys/kern/subr_bus.c +++ b/sys/kern/subr_bus.c @@ -1194,6 +1194,9 @@ devclass_get_count(devclass_t dc) /** * @brief Get the maximum unit number used in a devclass * + * Note that this is one greater than the highest currently-allocated + * unit. + * * @param dc the devclass to examine */ int |
