Re: [FFADO-devel] Need testers of a workaround for M-Audio Firewire 1814 and ProjectMix I/O

[Takashi S. <o-t...@sa...>]

Darren,

> If you're interested in taking a look, I've uploaded them to my dropbox.
> Once I have the protocol worked out, I'll update the wiki page.
>
> https://www.dropbox.com/sh/fvtswetg4fzk0yn/AMoVvXGauf

Aha! Now I realize the protocol.

I know that read requests to 'ffc7'0060'0000 is for metering. See:
http://subversion.ffado.org/wiki/MaudioBebob

For ProjectMix I/O, drivers can read 84bytes from this register.
But the roles of first 4byte is unknown for me.

According to your logs, the roles are:
01 01 01 01
<-'A/B switch' is toggled
    <-'Headphone 1' is turned
       <- 'Headphone 2' is turned
          <- 'Level' is turned

Driver handle these signals and execute write command to refrect 
corresponding control. See:
http://subversion.ffado.org/wiki/MaudioBebob/Firewire1814

Currently I have no time to implement these in FFADO because I need to 
spend time for ALSA. If you need some advices, please inform to me.


Thanks

Takashi Sakamoto
o-t...@sa...