USB sound device questions (multiples!)

[Ethan]

> If they are all plugged in during boot they will get probed in the same order
> every time you boot, so yes, they will be static.

Okay, because this is going to be a fixed installation that will be pretty
much hands off.

> Be sure to calculate if you have enough bandwidth available to drive such a
> great number of devices at the same time though :
> 48KHz * 16-bits sample * stereo * 6 devices = about 48 * 2 * 2 * 6 =
>  1152 KB/sec .
> That's about the maximum you can get over USB 1.0, so I'm not sure if you will
> be able to use them all at the same time at maximum playback rate... So it
> depends on the quality and sample-rate you need.

I figured I would split them across two USB interface cards?