The branch main has been updated by christos:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=ebe7b241662be3941e462be9f228fcad1b67073a

commit ebe7b241662be3941e462be9f228fcad1b67073a
Author:     Goran Mekić <[email protected]>
AuthorDate: 2025-12-08 17:20:34 +0000
Commit:     Christos Margiolis <[email protected]>
CommitDate: 2025-12-08 17:21:30 +0000

    sound examples: Check if setting property was successful
    
    MFC after:      1 week
    Reviewed by:    christos
    Differential Revision:  https://reviews.freebsd.org/D54038
---
 share/examples/sound/oss.h    | 22 ++++++++++++++++++----
 share/examples/sound/simple.c |  4 ++++
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/share/examples/sound/oss.h b/share/examples/sound/oss.h
index e1ba4165810f..cf38b8de2b0c 100644
--- a/share/examples/sound/oss.h
+++ b/share/examples/sound/oss.h
@@ -112,16 +112,28 @@ oss_init(struct config *config)
        }
 
        /* Set sample format */
-       if (ioctl(config->fd, SNDCTL_DSP_SETFMT, &config->format) < 0)
+       tmp = config->format;
+       if (ioctl(config->fd, SNDCTL_DSP_SETFMT, &tmp) < 0)
                err(1, "Unable to set sample format");
+       if (tmp != config->format)
+               warnx("Format: requested=%08x, got=%08x", config->format, tmp);
+       config->format = tmp;
 
        /* Set sample channels */
-       if (ioctl(config->fd, SNDCTL_DSP_CHANNELS, 
&config->audio_info.max_channels) < 0)
+       tmp = config->audio_info.max_channels;
+       if (ioctl(config->fd, SNDCTL_DSP_CHANNELS, &tmp) < 0)
                err(1, "Unable to set channels");
+       if (tmp != config->audio_info.max_channels)
+               warnx("Channels: requested=%d, got=%d", 
config->audio_info.max_channels, tmp);
+       config->audio_info.max_channels = tmp;
 
        /* Set sample rate */
+       tmp = config->sample_rate;
        if (ioctl(config->fd, SNDCTL_DSP_SPEED, &config->sample_rate) < 0)
                err(1, "Unable to set sample rate");
+       if (tmp != config->sample_rate)
+               warnx("Sample rate: requested=%d, got=%d", config->sample_rate, 
tmp);
+       config->sample_rate = tmp;
 
        /* Calculate sample size */
        switch (config->format) {
@@ -197,10 +209,12 @@ oss_init(struct config *config)
        config->chsamples = config->sample_count / 
config->audio_info.max_channels;
 
        printf("bytes: %d, fragments: %d, fragsize: %d, fragstotal: %d, "
-           "samples: %d\n",
+           "samples: %d, channels: %d, sample size: %d, sample rate: %d, "
+           "format: %08x\n",
            config->buffer_info.bytes, config->buffer_info.fragments,
            config->buffer_info.fragsize, config->buffer_info.fragstotal,
-           config->sample_count);
+           config->sample_count, config->audio_info.max_channels,
+           config->sample_size, config->sample_rate, config->format);
 
        /* Set trigger direction and mmap protection */
        switch (config->mode & O_ACCMODE) {
diff --git a/share/examples/sound/simple.c b/share/examples/sound/simple.c
index e458841f596a..78f9d848bcec 100644
--- a/share/examples/sound/simple.c
+++ b/share/examples/sound/simple.c
@@ -29,6 +29,7 @@
  * SUCH DAMAGE.
  */
 
+#include <sys/soundcard.h>
 #include "oss.h"
 
 /*
@@ -115,6 +116,9 @@ main(int argc, char *argv[])
        int rc, bytes;
 
        oss_init(&config);
+       if (config.format != AFMT_S32_NE)
+               errx(1, "Device doesn't support signed 32bit samples. "
+                       "Check with 'sndctl' if it can be configured for 
's32le' format.");
        bytes = config.buffer_info.bytes;
        channels = malloc(bytes);
 

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