diff options
| author | Christos Margiolis <christos@FreeBSD.org> | 2025-10-22 11:51:01 +0000 |
|---|---|---|
| committer | Christos Margiolis <christos@FreeBSD.org> | 2025-10-22 11:51:01 +0000 |
| commit | 2693d6c7c9cab28967de13233342fcf9281e5636 (patch) | |
| tree | 5faad3c4f0c47e3ba0f1236180498cf6bede531a | |
| parent | 70b34fbdbea13c006a724844caa53f59e0e53bd0 (diff) | |
snd_dummy: Create device alias
Sponsored by: The FreeBSD Foundation
MFC after: 4 days
Reviewed by: emaste, ziaee
Differential Revision: https://reviews.freebsd.org/D53237
| -rw-r--r-- | share/man/man4/snd_dummy.4 | 12 | ||||
| -rw-r--r-- | sys/dev/sound/dummy.c | 6 |
2 files changed, 17 insertions, 1 deletions
diff --git a/share/man/man4/snd_dummy.4 b/share/man/man4/snd_dummy.4 index 2b9d26d318ef..4ede8a806b6a 100644 --- a/share/man/man4/snd_dummy.4 +++ b/share/man/man4/snd_dummy.4 @@ -27,7 +27,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd July 15, 2024 +.Dd October 22, 2025 .Dt SND_DUMMY 4 .Os .Sh NAME @@ -52,6 +52,16 @@ and one recording), as well as a mixer. .Pp Playback works by discarding all input, and recording by returning silence (zeros). +.Sh FILES +.Bl -tag -width "/dev/dsp.dummy" -compact +.It Pa /dev/dsp.dummy +Alias to the device's +.Pa /dev/dsp%d +file created by +.Xr sound 4 . +This makes it easy for tests to open the dummy devic when there are more +devices present in the system. +.El .Sh SEE ALSO .Xr sound 4 , .Xr loader.conf 5 , diff --git a/sys/dev/sound/dummy.c b/sys/dev/sound/dummy.c index 4df5b112d3f4..1f2d69708eec 100644 --- a/sys/dev/sound/dummy.c +++ b/sys/dev/sound/dummy.c @@ -346,6 +346,12 @@ dummy_attach(device_t dev) return (ENXIO); mixer_init(dev, &dummy_mixer_class, sc); + /* + * Create an alias so that tests do not need to guess which one is the + * dummy device if there are more devices present in the system. + */ + make_dev_alias(sc->info.dsp_dev, "dsp.dummy"); + return (0); } |