Difference between revisions of "ALSA Installation"
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* On your Host select ALSA compilation in Linux configuration: | * On your Host select ALSA compilation in Linux configuration: | ||
<pre class="host"> | <pre class="host"> | ||
− | + | $ make linux-menuconfig | |
</pre> | </pre> | ||
Line 34: | Line 34: | ||
* in Buildroot configuration, select the user space packages for ALSA: | * in Buildroot configuration, select the user space packages for ALSA: | ||
<pre class="host"> | <pre class="host"> | ||
− | + | $ make menuconfig | |
</pre> | </pre> | ||
<pre class="config"> | <pre class="config"> | ||
Line 71: | Line 71: | ||
</pre> | </pre> | ||
* save your configuration and rebuild your rootfs: | * save your configuration and rebuild your rootfs: | ||
− | + | <pre class="host"> | |
− | + | $ make | |
+ | </pre> | ||
* reflash your rootfs and your Linux kernel. [[Linux_drivers_generalities|Go here if you need more infos on how to install Linux drivers.]] | * reflash your rootfs and your Linux kernel. [[Linux_drivers_generalities|Go here if you need more infos on how to install Linux drivers.]] | ||
Line 78: | Line 79: | ||
'''Automatically done by Buildroot / mdev, so only here as reference.'''<br> | '''Automatically done by Buildroot / mdev, so only here as reference.'''<br> | ||
In ''/dev/snd/'' you should have: | In ''/dev/snd/'' you should have: | ||
+ | <pre class="apf"> | ||
mknod controlC0 c 116 0 | mknod controlC0 c 116 0 | ||
mknod pcmC0D0c c 116 24 | mknod pcmC0D0c c 116 24 | ||
mknod pcmC0D0p c 116 16 | mknod pcmC0D0p c 116 16 | ||
+ | </pre> | ||
==Links== | ==Links== | ||
* [http://www.busybox.net/lists/buildroot/2008-February/007061.html Buildroot bug (aplay: set_params:1012: unable to install sw params:)] | * [http://www.busybox.net/lists/buildroot/2008-February/007061.html Buildroot bug (aplay: set_params:1012: unable to install sw params:)] |
Latest revision as of 17:06, 4 September 2013
Compilation
- On your Host select ALSA compilation in Linux configuration:
$ make linux-menuconfig
Device Drivers ---> <M> Sound card support ---> <M> Advanced Linux Sound Architecture---> [*] ARM sound devices ---> <M> i.MX1/L TSC2102 alsa driver
<M> Advanced Linux Sound Architecture < > Sequencer support (NEW) <M> OSS Mixer API <M> OSS PCM (digital audio) API [*] OSS PCM (digital audio) API - Include plugin system (NEW) [ ] Dynamic device file minor numbers (NEW) [*] Support old ALSA API (NEW) [ ] Verbose procfs contents (NEW) [ ] Verbose printk [ ] Debug [ ] Debug [ ] Generic sound devices ---> [*] ARM sound devices ---> [ ] SPI sound devices ---> [ ] USB sound devices ---> < > ALSA for SoC audio support --->
- in Buildroot configuration, select the user space packages for ALSA:
$ make menuconfig
Package Selection for the target-> Audio libraries: --- Audio libraries and applications [*] alsa-lib [*] alsa-utils ALSA utils selection ---> [ ] asterisk [*] aumix [ ] libmad --- libid3tag --- libmad [ ] libmad headers in target [ ] libsndfile --- libvorbis requires the package libogg to build [*] madplay [ ] mpg123 in ALSA utils selection ---> [*] alsaconf [*] alsactl [*] alsamixer [ ] amidi [*] amixer [*] aplay [ ] arecord [ ] iecset [ ] aconnect [ ] aplaymidi [ ] arecordmidi [ ] aseqdump [ ] aseqnet [*] speaker-test
- save your configuration and rebuild your rootfs:
$ make
- reflash your rootfs and your Linux kernel. Go here if you need more infos on how to install Linux drivers.
nodes creation
Automatically done by Buildroot / mdev, so only here as reference.
In /dev/snd/ you should have:
mknod controlC0 c 116 0 mknod pcmC0D0c c 116 24 mknod pcmC0D0p c 116 16