[LAU] How can I detect whether JACK or ALSA clients are using an audio gear?

crocket crockabiscuit at gmail.com
Fri Mar 29 16:32:30 CET 2019

It seems I need to use jack for this. But, I don't know yet if jack can do
what I want.

On Fri, Mar 29, 2019 at 8:25 AM crocket <crockabiscuit at gmail.com> wrote:

> My Raspberry Pi can turn audio gears on and off via relays.
> When my desktop starts using its speakers, I want it to tell Raspberry Pi
> to turn on the speakers via a relay.
> When nothing has used the speakers for a minute, I want it to tell
> Raspberry Pi to turn off the speakers.
> I can do the same for a USB microphone. A USB microphone can be turned on
> and off by uhubctl.
> Does ALSA have a callback API that I hook into? Does jack have it?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.linuxaudio.org/archives/linux-audio-user/attachments/20190330/5cc26555/attachment.html>

More information about the Linux-audio-user mailing list