alsaucm(1) (NAME) alsaucm - ALSA (ALSA Use Case Manager) (SYNOPSIS) alsaucm <> [] (DESCRIPTION) alsaucm ( ALSA) ALSA . (audio routes) . ALSA . . ALSA (kcontrols) . kcontrol . verb device . verb . device . (OPTIONS) : -h, --help -c, --card NAME NAME -i, --interactive -b, --batch FILE ( '-' stdin) -n, --no-open : open NAME NAME. /usr/share/alsa/ucm . reset . reload . listcards . list IDENTIFIER ( + ). IDENTIFIER : o _verbs - verb ( verb+comment) o _devices[/{verb}] - ( device+comment) o _modifiers[/{verb}] - ( modifier+comment) /{verb} verb . list1 IDENTIFIER . IDENTIFIER (context) : o TQ[/{verb}] - (Tone Quality) o _enadevs - o _enamods - o _supporteddevs/{modifier}|{device}[/{verb}] - o _conflictingdevs/{modifier}|{device}[/{verb}] - get IDENTIFIER (string). IDENTIFIER : o _verb - verb o [=]{NAME}[/[{modifier}|{/device}][/{verb}]] ( NAME ALSA ) geti IDENTIFIER (integer). IDENTIFIER : o _devstatus/{device} o _modstatus/{device} set IDENTIFIER VALUE IDENTIFIER : o _verb - verb VALUE o _enadev - VALUE o _disdev - VALUE o _swdev/{old_device} - : o old_device VALUE o o _enamod - VALUE o _dismod - VALUE o _swmod/{old_modifier} - : o old_modifier VALUE o verb . h, help q, quit (FILES) /usr/share/alsa/ucm . Pandaboard /usr/share/alsa/ucm/PandaBoard/PandaBoard.conf : SectionUseCase."HiFi" { File "hifi" Comment "Play HiFi quality Music." } ... _verb File ( ) . HiFi /usr/share/alsa/ucm/PandaBoard/hifi . UCM alsa-lib : (EXAMPLES) list _devices _verb : # alsaucm -c bytcr-rt5640 set _verb HiFi # alsaucm -c bytcr-rt5640 list _devices : # alsaucm -n -b - < Speaker verb HiFi bytcr-rt5640: # alsaucm -n -b - < (SEE ALSO) o : (BUGS) . (AUTHORS) Antonio Ospite (COPYRIGHT) GPLv2+ 2016-09-22 alsaucm(1)