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Documentation - AlsaProject
https://www.alsa-project.org/main/index.php/Documentation
System Maintainers Info. System Maintainers documentation. Sound Card Matrix & INSTALL documentation. The Unofficial ALSA Wiki. A close look at ALSA an extensive coverage of major aspects by Volker Schatz. The latest INSTALL file. kerndriv Updating ALSA Kernel drivers. olddocs Older documents. asoundrc.
ALSA audio
https://web.media.mit.edu/~stefan/isis/software/alsa-audio.html
The documentation below is for systems with ALSA 0.9.x. (alsa-open-output device) # initialize playback, returns acon (alsa-open-input device) # initialize recording, returns acon # device is OPTIONAL and defaults to "plughw:0,0" (alsa-setup acon bits unsigned-flag big-endian-flag rate channels bufsamps) # sets PCM parameters # bits: 8 or 16 # unsigned-flag: True or False # big …
ALSA Driver Documentation - AlsaProject
https://www.alsa-project.org/wiki/ALSA_Driver_Documentation
ALSA Driver Documentation. Takashi Iwai has written "Writing an ALSA Driver" - a very comprehensive guide to developing a device driver for ALSA. The document focuses mainly on the PCI soundcard. In the case of other device types, the API might be different. However the ALSA kernel API is consistent so it will be helpful in that context.
ALSA Kernel API Documentation - Linux kernel
https://www.kernel.org/doc/html/latest/sound/kernel-api/index.html
ALSA Kernel API Documentation. The ALSA Driver API. Management of Cards and Devices. PCM API. Control/Mixer API. MIDI API. Proc Info API. Compress Offload. ASoC.
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