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ALSATPLG(1) General Commands Manual ALSATPLG(1) NAME alsatplg - ALSA Topology Compiler SYNOPSIS alsatplg <options> [command] DESCRIPTION alsatplg (ALSA Topology compiler) is a program to compile topology con- figuration file to the binary file for the kernel drivers. Current audio drivers typically hard code topology information in the driver sources: This tightly couples the audio driver to the develop- ment board making it time consuming to modify a driver to work on a different devices. The driver is also tightly coupled to the DSP firmware version meaning extra care is needed to keep the driver and firmware version in sync. New firmware features also mean driver up- dates. The ALSA topology project removes the need for re-writing or porting audio drivers to different devices or different firmwares: Drivers have no hard coded topology data meaning a single driver can be used on dif- ferent devices by updating the topology data from the file system. Firmware updates can be pushed without having to update the drivers. The new firmware just needs to include an updated topology file de- scribing the update. OPTIONS Available options: -h, --help this help -V, --version show the utility version and versions of used libraries -c, --compile FILE source configuration file for the compilation -d, --decode FILE source binary topology file for the decode -n, --normalize FILE parse and save the configuration file in the normalized for- mat -u, --dump FILE parse and save the configuration file in the specified format -o, --output FILE output file -v, --verbose LEVEL set verbose level -s, --sort sort the configuration identifiers (set for normalization) -x, --nocheck save the configuration without additional integrity check -z, --dapm-nosort do not sort DAPM graph items (like in version 1.2.1-) FILES The master topology files for each supported sound card are in /usr/share/alsa/topology. For example, the master use case file for the broadwell card is in /usr/share/alsa/topology/broadwell/broadwell.conf, this file describes the audio hardware for the driver. For more details on the syntax of UCM files, see the alsa-lib source code: <http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=src/topol- ogy/parser.c> SEE ALSO • Topology Interface: <http://www.alsa-project.org/alsa-doc/alsa-lib/group__topology.html> BUGS None known. AUTHOR Jaroslav Kysela <perex@perex.cz> COPYRIGHT GPLv2+ 2018-10-09 ALSATPLG(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | SEE ALSO | BUGS | AUTHOR | COPYRIGHT
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