[EMAIL PROTECTED] wrote:

> I have an emagic AMT 8 midi patch bay.  (Similar to Unitor 8).

I have this one, too. Works great with our apple macintosh.

> 1)  Is anyone working on a driver for this?

Don't know. But it would be great.

> 2)  If not, is there a FAQ on how to approach a manufacturer for
>     documentation on their hardware for purposes of developing a
>     driver for them for free?  (I should have to beg?)

Emagic HQ is about 20 kilometers away from our studio at
Hamburg, Germany. Maybe i should visit them.

> 3)  This is a USB to MIDI device.  Is there any support in ALSA for
>     USB, or do we roll our own support?

If you manage to get the protocol documentation, it should be no
problem to use the USB lowlevel kernel drivers. The alsa driver
would be in fact a usb device driver, which gets loaded by the
kernel when you plug in the amt8.

As far as i know the AMT8/Unitor devices use hardware timestamping
at the inputs and hardware queuing for the outputs.
But usually this is alsa's job. So don't know if it's possible
to use these hardware features together with alsa.
 
Stef(an).

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