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https://android.googlesource.com/platform/external/tinyalsa/+/9074cfc4127cb841f0633b35895141f90da3f0d6 commit 9074cfc4127cb841f0633b35895141f90da3f0d6 author Dylan Reid <dgreid@chromium.org> Export pcm_mmap_avail This is useful for timer based wakeups and for checking how much data has been captured by a hotwording device. Change-Id: I409201a5c9ce73abc807a9dd767beb3a32810f06 Signed-off-by: Dylan Reid <dgreid@chromium.org>
TinyALSA
TinyALSA is a small library to interface with ALSA in the Linux kernel.
The aims are:
- Provide a basic pcm and mixer API.
- If it's not absolutely needed, don't add it to the API.
- Avoid supporting complex and unnecessary operations, that could be dealt with at a higher level.
- Provide comprehensive documentation.
Building
TinyALSA supports these build systems:
To build and install with Make, run the commands:
make
sudo make install
sudo ldconfig
Installing
TinyALSA is now available as a set of the following Debian packages from launchpad:
| Package Name: | Description: |
|---|---|
| tinyalsa | Contains tinyplay, tinycap, tinymix and tinypcminfo |
| libtinyalsa | Contains the shared library |
| libtinyalsa-dev | Contains the static library and header files |
To install these packages, run the commands:
sudo apt-add-repository ppa:taylorcholberton/tinyalsa
sudo apt-get update
sudo apt-get install tinyalsa
sudo apt-get install libtinyalsa-dev
Documentation
Once installed, the man pages are available via:
man tinyplay
man tinycap
man tinymix
man tinypcminfo
man libtinyalsa-pcm
man libtinyalsa-mixer