Manual: alsatplg

alsatplg(1)					   General Commands Manual					 alsatplg(1)

Name
       alsatplg - ALSA Topology Compiler

SYNOPSIS
       alsatplg  [command]

DESCRIPTION
       alsatplg (ALSA Topology compiler) is a program to compile topology configuration file to the binary file for the ker‐
       nel drivers.

       Current	audio drivers typically hard code topology information in the driver sources: This tightly couples the audio
       driver to the development board making it time consuming to modify a driver to work on a different devices. The	dri‐
       ver  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 updates.

       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 different devices by up‐
       dating 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 describing 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 format

	  -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: 

SEE ALSO
       • Topology Interface: 

BUGS
       None known.

Author
       Jaroslav Kysela 

Copyright
       GPLv2+

							 2018-10-09						 alsatplg(1)