Hi,
I thought I would try the DICE chipset driver from ALSA, as it appears that this will eventually take over from ffado..
It appears that it doesn't work very well for my Allen & Heath Zed -R16 which works very well under FFADO
Using kernel 4.4.0 from Ubuntu
The ALSA driver limited the device to only 16 inputs and outputs, however it has a total capability of 26 This is comprises of 16 inputs and outputs on the desk channels, a stereo main pair of outputs and inputs for the master bus 8 additional ins and outs to support the ADAT ports on the back (availoable in 44.1 and 48 khz modes, but not 88.2 or 96 Khz
Similiarly I was not able to set the device to run at a latency lower than 256 frames in jack, however in FFADO I could go as low as 64 frames.
Please let me know if I can help with any further testing to get this to the same level as the FFADO driver.
Regards
Allan