Date: Wed, 31 Aug 2005 22:23:09 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Clemens Ladisch <clemens@ladisch.de> Cc: freebsd-multimedia@freebsd.org Subject: Re: uaudio fullduplex on 5.4-RELEASE? Message-ID: <20050831222309.112e3e5c@Magellan.Leidinger.net> In-Reply-To: <Pine.HPX.4.33n.0508311332520.16072-100000@studcom.urz.uni-halle.de> References: <20050831115215.6fx8wellc0cs8s8g@netchild.homeip.net> <Pine.HPX.4.33n.0508311332520.16072-100000@studcom.urz.uni-halle.de>
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On Wed, 31 Aug 2005 13:41:57 +0200 (METDST)
Clemens Ladisch <clemens@ladisch.de> wrote:
> Alexander Leidinger wrote:
> > Some USB chips have problems with fullduplex operation. AFAIK it's
> > not known if it is a problem with our USB subsystem or not.
>
> Which chips? There are devices (some from Edirol and M-Audio) that do
> not support full duplex with higher sample rates (and where this is
> documented), but most should work just fine.
I was talking about USB controllers, not about Audio chips. AFAIR there
seems to be a problem with ohci controllers, while uhci controllers
seems to work as expected. This may be a problem in the USB stack.
Bye,
Alexander.
--
It is easier to fix Unix than to live with NT.
http://www.Leidinger.net Alexander @ Leidinger.net
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