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Focusrite Forte in Linux (and a bit on the Scarletts)

somebodyelse

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I've previously outlined how the Forte currently has essentially no controls in linux, how that stops it being usable as a measurement interface, and that I was trying to do something about it. I've now had enough success that I think it's worth sharing, at least for anyone who can cope with patching and recompiling the kernel. I can now control the mixer matrix and the outputs, which means I can now use it for line level measurement. You can find it at github - I've forked the whole kernel as it'll make it easier to submit further down the line, but the alterations are under sound/usb. There's some documentation in the wiki section, and the issue tracker should cover the bits that don't work properly yet. I've started by adding the Forte to the existing Scarlett Gen 1 mixer as they're closely related, at least in the mixer matrix and outputs.

It would be useful to know if it works for other people, either so I know what I need to fix or as a reason for submitting for inclusion in the kernel. It would also be useful to know that it doesn't break the existing Scarlett Gen 1 mixer support where it currently exists, as I don't have a Scarlett to test with. @Blumlein 88 already noted that the existing support doesn't work properly with the 18i20 Gen 1.

If you've got a Scarlett Gen 2 you might want to check Geoffrey's recent work on adding linux support. You can find the code at github and a pair of linuxmusicians threads where he's discussing it.
 
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