Noob's question: How does hardware sharing works?

[doronbehar]

@tmigone

bluetooth : unfortunately I think the bluetooth firmware change that the Arch Wiki describes is already implemented in balenaOS at the host level (unless I’m misreading this). You can see the params in this two firmware files: /lib/firmware/brcm/brcmfmac43455-sdio.txt and /lib/firmware/brcm/brcmfmac43430-sdio.txt . I don’t think adding it to the bluetooth (or any) container will do any difference as the underlying hardware should already be properly configured, though please let me know of your results regardless!

I see, then this is truly a no fix. .

@tmigone

Piano DAC : Have you tried using dtoverlays ? I don’t think I’ve seen this particular DAC used before with balenaSound, but it should be pretty straightforward to setup.

It is straight forward, and I already get sound out of my DAC, but there’s a subtlety, explained here. In short, there is a certain operation mode or two available for the DAC, that it’s possible to reach only with these firmware files installed. I witnessed this back at the time I used moodeaudio. I also know I should run a certain amixer command.

@tmigone

In any case, interested in hearing back from your changes and experience with balenaSound!

Awesome :], I have little time to deal with my Raspberry as of now, unfortunately :/, but I’ll do anything necessary when time permits, to get my absolutely declarative and totally reproducible sound system. Hopefully, the balenaSound project will benefit from my testings, and contributions if any will be needed! Cheers .

P.S (edit): I think the balenaSound project can’t distribute the piano firmware files I mentioned, since their license won’t permit it.