Why is this ALSA configuration file preventing aplay and arecord from listing PCM devices?
In my embedded system I have this configuration file in /etc/asound.conf:
pcm_slave.sl2 {
pcm "hw:0,0"
rate 48000
channels 2
format S16_LE
}
pcm.rate_convert {
type plug
slave sl2
}
pcm.!default rate_convert
I noticed that since this file was placed in the system, aplay -L and arecord -L cannot list the PCM devices anymore. aplay -l and arecord -l are instead working as expected.
If this file is not placed in there, the list is correctly returned. What is this doing exactly? Why is this preventing aplay and arecord from listing PCM devices?
linux audio embedded alsa
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
add a comment |
In my embedded system I have this configuration file in /etc/asound.conf:
pcm_slave.sl2 {
pcm "hw:0,0"
rate 48000
channels 2
format S16_LE
}
pcm.rate_convert {
type plug
slave sl2
}
pcm.!default rate_convert
I noticed that since this file was placed in the system, aplay -L and arecord -L cannot list the PCM devices anymore. aplay -l and arecord -l are instead working as expected.
If this file is not placed in there, the list is correctly returned. What is this doing exactly? Why is this preventing aplay and arecord from listing PCM devices?
linux audio embedded alsa
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
add a comment |
In my embedded system I have this configuration file in /etc/asound.conf:
pcm_slave.sl2 {
pcm "hw:0,0"
rate 48000
channels 2
format S16_LE
}
pcm.rate_convert {
type plug
slave sl2
}
pcm.!default rate_convert
I noticed that since this file was placed in the system, aplay -L and arecord -L cannot list the PCM devices anymore. aplay -l and arecord -l are instead working as expected.
If this file is not placed in there, the list is correctly returned. What is this doing exactly? Why is this preventing aplay and arecord from listing PCM devices?
linux audio embedded alsa
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
In my embedded system I have this configuration file in /etc/asound.conf:
pcm_slave.sl2 {
pcm "hw:0,0"
rate 48000
channels 2
format S16_LE
}
pcm.rate_convert {
type plug
slave sl2
}
pcm.!default rate_convert
I noticed that since this file was placed in the system, aplay -L and arecord -L cannot list the PCM devices anymore. aplay -l and arecord -l are instead working as expected.
If this file is not placed in there, the list is correctly returned. What is this doing exactly? Why is this preventing aplay and arecord from listing PCM devices?
linux audio embedded alsa
linux audio embedded alsa
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
edited Nov 22 '11 at 21:23
Luca Carlon
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
asked Nov 22 '11 at 20:47
Luca CarlonLuca Carlon
184112
184112
add a comment |
add a comment |
1 Answer
1
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Make sure the defaults.namehint.showall and defaults.namehint.extended are set to on in the /usr/share/alsa/alsa.conf file.
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
add a comment |
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Make sure the defaults.namehint.showall and defaults.namehint.extended are set to on in the /usr/share/alsa/alsa.conf file.
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
add a comment |
Make sure the defaults.namehint.showall and defaults.namehint.extended are set to on in the /usr/share/alsa/alsa.conf file.
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
add a comment |
Make sure the defaults.namehint.showall and defaults.namehint.extended are set to on in the /usr/share/alsa/alsa.conf file.
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
Make sure the defaults.namehint.showall and defaults.namehint.extended are set to on in the /usr/share/alsa/alsa.conf file.
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
answered Dec 15 '16 at 5:59
Vladimir VassilievVladimir Vassiliev
1
1
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