Hi, On Apr 20 2016 23:31, Allan Klinbail wrote: > 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 This is fixed in Linux kernel 4.6. http://mailman.alsa-project.org/pipermail/alsa-devel/2016-March/105462.html The backported codes are available in my private repository. After installing, You can see two PCM character devices to handle these PCM channels. https://github.com/takaswie/snd-firewire-improve To clarify the capabilities of your model, please show me output of proc node, like $ cat /proc/asound/card1/dice sections: global: offset 10, size 95 tx: offset 105, size 142 ... Regards Takashi Sakamoto _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel