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AXFER-LIST(1) General Commands Manual AXFER-LIST(1)

axfer-list - dump lists of available sound devices and nodes to transfer audio data frame.

axfer list direction target

direction = capture | playback

target = device | pcm

The list subcommand of axfer dumps lists of available nodes to transfer audio data frame. At present, the subcommand is helpful just for libasound backend of transfer subcommand.

capture
Operates for capture transmission.

playback
Operates for playback transmission.

device
Dumps a list of all soundcards and digital audio devices available in libasound backend for tranfer subcommand.

pcm
Dumps a list of all PCM nodes available in alsa-lib configuration space in libasound backend for transfer subcommand.

Options of -l , --list-devices are handled as device operation. Options of -L , --list-pcms are handled as pcm operation.

axfer(1), axfer-transfer(1), alsamixer(1), amixer(1)

Takashi Sakamoto <o-takashi@sakamocchi.jp>
28 November 2018 alsa-utils