uaudio fullduplex on 5.4-RELEASE?

Alexander Leidinger Alexander at
Wed Aug 31 20:32:03 GMT 2005

On Wed, 31 Aug 2005 14:01:39 +0200
Pia Gerhardt <pge at> wrote:

> On Wed, 31 Aug 2005 11:52 +0200, Alexander Leidinger wrote:
> > Pia Gerhardt <pge at> wrote:
> > 
> > >Hi,
> > >I installed a 5.4-RELEASE over ftp just yesterday, and
> > >managed to make uaudio output work on my logitech 350
> > >USB headset with a minor patch. I was wondering if there
> > >is some way to make fullduplex on uaudio work in this
> > >release.
> > 
> > Some USB chips have problems with fullduplex operation. Because of this it's
> > disabled by default. AFAIK it's not known if it is a problem with our USB
> > subsystem or not.
> Hi,
> accidently forgot to cc the list. I think its worth a try. Whats the 
> most elegant way to enable it? 

You have to enable it by modifying a source file. But I don't remember
which one and how.

Maybe google is able to find how to do it. Someone mentioned it
somewhere on the FreeBSD lists.


                Where do you think you're going today?                       Alexander @
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