Re: [Gumstix-users] DAC on Ucb1400

[Craig H. <cr...@gu...>]

On Sep 25, 2007, at 7:11 AM, Dave Hylands wrote:

> My guess is that it would involve modifying a portion of the driver,
> but I haven't really played around with the ucb1400, so I'm not 100%
> sure.

If you look at the ucb1400 audio driver, you'll see I've added a  
patch which exposes the ucb1400's 10 GPIO lines under /proc -- you  
could do something similar to expose the A/D stuff as well, or  
similar access methods on the hardware but a proper /dev device to  
get better performance and more control than /proc/ probably gives you.

C