[alsa-devel] [Alsa-user] snd-usb-caiaq (NI Maschine Mikro) device not recognised by alsa

[sypwex]

On Wed, Sep 23, 2015 at 9:44 AM, Daniel Mack <daniel at zonque.org> wrote:
> On 09/22/2015 09:03 PM, sypwex wrote:
>> On Tue, Sep 22, 2015 at 2:17 PM, Daniel Mack <daniel at zonque.org> wrote:
>>>
>>> Yes, this device only offers HID and DFU (for firmware updates), so
>>> you'll have to parse the HID data it produces.
>>>
>>
>> Ok, but device looks like powered off - no flashes on tap and LED
>> display is blank. When I firstly attach USB cable all buttons flashes
>> but then it looks like switched off.
>
> Everything from that point on is under control of the host software.
>
>> On windows when I plug in the device, LED display offers to start up
>> in MIDI mode (SHIFT+F1) - is it controlled by driver or this is
>> behavior of firmware?
>
> I've personally never used this device, so I can't tell you what they
> do. You need to sniff the USB traffic the Windows software issues to the
> device and find out which HID controls they touch in order to set LEDs
> and issue display commands. IOW: you need to re-engineer the HID
> mapping. That's tedious, but doable.
>
>
> HTH,
> Daniel
>

Thanks Daniel!

Looks like I got the idea. I'll try it next week.

Cheers!