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if a device has no play or no record channels, set its simplex flag.

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cg 2000-06-01 01:32:30 +00:00
parent b9592ca040
commit ba367be739
1 changed files with 3 additions and 0 deletions
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3
sys/dev/sound/pcm/sound.c
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@ -202,6 +202,9 @@ pcm_register(device_t dev, void *devinfo, int numplay, int numrec)
bzero(d->rec, numrec * sizeof(pcm_channel));
}
if (numplay == 0 || numrec == 0)
d->flags |= SD_F_SIMPLEX;
fkchan_setup(&d->fakechan);
chn_init(&d->fakechan, NULL, 0);
d->magic = MAGIC(unit); /* debugging... */