[src/trunk]: src/lib/libossaudio ossaudio(3): Add SNDCTL_AUDIOINFO_EX as an a...

[nia <nia%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/07496227f745
branches:  trunk
changeset: 977295:07496227f745
user:      nia <nia%NetBSD.org@localhost>
date:      Tue Oct 20 08:57:45 2020 +0000

description:
ossaudio(3): Add SNDCTL_AUDIOINFO_EX as an alias of SNDCTL_AUDIOINFO

diffstat:

 lib/libossaudio/ossaudio.c  |  11 +++++++++--
 lib/libossaudio/soundcard.h |   3 ++-
 2 files changed, 11 insertions(+), 3 deletions(-)

diffs (49 lines):

diff -r 176248b693de -r 07496227f745 lib/libossaudio/ossaudio.c
--- a/lib/libossaudio/ossaudio.c        Tue Oct 20 08:53:34 2020 +0000
+++ b/lib/libossaudio/ossaudio.c        Tue Oct 20 08:57:45 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ossaudio.c,v 1.53 2020/10/20 06:53:37 nia Exp $        */
+/*     $NetBSD: ossaudio.c,v 1.54 2020/10/20 08:57:45 nia Exp $        */
 
 /*-
  * Copyright (c) 1997, 2020 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: ossaudio.c,v 1.53 2020/10/20 06:53:37 nia Exp $");
+__RCSID("$NetBSD: ossaudio.c,v 1.54 2020/10/20 08:57:45 nia Exp $");
 
 /*
  * This is an Open Sound System compatibility layer, which provides
@@ -1045,6 +1045,13 @@
 
        switch (com) {
        case SNDCTL_AUDIOINFO:
+       /*
+        * SNDCTL_AUDIOINFO_EX is intended for underlying hardware devices
+        * that are to be opened in "exclusive mode" (bypassing the normal
+        * kernel mixer for exclusive control). NetBSD does not support
+        * bypassing the kernel mixer, so it's an alias of SNDCTL_AUDIOINFO.
+        */
+       case SNDCTL_AUDIOINFO_EX:
        case SNDCTL_ENGINEINFO:
                devno = 0;
                tmpai = (struct oss_audioinfo*)argp;
diff -r 176248b693de -r 07496227f745 lib/libossaudio/soundcard.h
--- a/lib/libossaudio/soundcard.h       Tue Oct 20 08:53:34 2020 +0000
+++ b/lib/libossaudio/soundcard.h       Tue Oct 20 08:57:45 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: soundcard.h,v 1.29 2020/10/20 06:33:52 nia Exp $       */
+/*     $NetBSD: soundcard.h,v 1.30 2020/10/20 08:57:45 nia Exp $       */
 
 /*-
  * Copyright (c) 1997, 2020 The NetBSD Foundation, Inc.
@@ -418,6 +418,7 @@
 #define SNDCTL_MIX_ENUMINFO    _IOWR ('X',8, oss_mixer_enuminfo)
 #define SNDCTL_MIXERINFO       _IOWR ('X',10, oss_mixerinfo)
 #define SNDCTL_ENGINEINFO      _IOWR ('X',12, oss_audioinfo)
+#define SNDCTL_AUDIOINFO_EX    _IOWR ('X',13, oss_audioinfo)
 #define SNDCTL_MIX_DESCRIPTION _IOWR ('X',14, oss_mixer_enuminfo)
 
 #define MIXT_DEVROOT           0 /* Used for default classes */