In message <mtun0xc4dys.fsf@contents-vnder-pressvre.mit.edu>, "Nathan J. Willia
ms" writes:
>I had a start at this after picking up one of the extremely cute "PDA"
>db9 serial adapters; we have a EZ-USB firmware loader,
>sys/dev/usb/ezload.[ch], which is used by uyap.c to download the audio
>firmware into the Yap! headsets. Putting the keyspan firmware on the
>device worked fine. I didn't actually get around to writing the rest
>of the serial driver, though. Someone else should :)

Well, there's a sample driver you can download from their page.  I might
have a go at this, given the sample code below, but it will probably take
effectively infinite time.  :)

-s