Author: hselasky
Date: Thu May 7 18:15:35 2020
New Revision: 360790
URL: https://svnweb.freebsd.org/changeset/base/360790
Log:
Set PCM_CAP_VIRTUAL for virtual DSP devices.
Submitted by: Kevin Zheng <kevinz5...@gmail.com>
PR: 246206
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/dev/sound/pcm/dsp.c
Modified: head/sys/dev/sound/pcm/dsp.c
==============================================================================
--- head/sys/dev/sound/pcm/dsp.c Thu May 7 17:59:17 2020
(r360789)
+++ head/sys/dev/sound/pcm/dsp.c Thu May 7 18:15:35 2020
(r360790)
@@ -1703,6 +1703,10 @@ dsp_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg,
*arg_i = PCM_CAP_REALTIME | PCM_CAP_MMAP | PCM_CAP_TRIGGER;
if (rdch && wrch && !(dsp_get_flags(i_dev) & SD_F_SIMPLEX))
*arg_i |= PCM_CAP_DUPLEX;
+ if (rdch && (rdch->flags & CHN_F_VIRTUAL) != 0)
+ *arg_i |= PCM_CAP_VIRTUAL;
+ if (wrch && (wrch->flags & CHN_F_VIRTUAL) != 0)
+ *arg_i |= PCM_CAP_VIRTUAL;
PCM_UNLOCK(d);
break;
@@ -2653,6 +2657,7 @@ dsp_oss_audioinfo(struct cdev *i_dev, oss_audioinfo *a
* these in pcmchan::caps?
*/
ai->caps = PCM_CAP_REALTIME | PCM_CAP_MMAP |
PCM_CAP_TRIGGER |
+ ((ch->flags & CHN_F_VIRTUAL) ? PCM_CAP_VIRTUAL : 0)
|
((ch->direction == PCMDIR_PLAY) ? PCM_CAP_OUTPUT :
PCM_CAP_INPUT);
/*
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