Date: Fri, 10 Mar 2006 12:16:22 +0100 From: "Bart van Leeuwen" <bart@bartsplace.net> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: freebsd-multimedia@freebsd.org Subject: Re: usb audio and a 1 channel input device Message-ID: <20060310111423.M86542@bartsplace.net> In-Reply-To: <20060310120829.5wkcmkjae8cgsgg0@netchild.homeip.net> References: <20060309163525.M9264@bartsplace.net> <20060310.131822.343160869.kazuhito@ph.noda.tus.ac.jp> <20060310111225.93tbmzmxw4s8www4@netchild.homeip.net> <20060310102511.M65307@bartsplace.net> <20060310120829.5wkcmkjae8cgsgg0@netchild.homeip.net>
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On Fri, 10 Mar 2006 12:08:29 +0100, Alexander Leidinger wrote > Bart van Leeuwen <bart@bartsplace.net> wrote: > > > On Fri, 10 Mar 2006 11:12:25 +0100, Alexander Leidinger wrote > >> Kazuhito HONDA <kazuhito@ph.noda.tus.ac.jp> wrote: > >> > >> > If your USB controller is uhci, you should do 1) below only. > >> > But yours os ohci, you should 1) and 2). > >> > > >> > 1) Comment out these lines in a function "uaudio_init_params()" of > >> > a file "/usr/src/sys/dev/sound/usb/uaudio.c": > >> > if ((sc->sc_playchan.pipe != NULL) || (sc->sc_recchan.pipe > >> != NULL)) > >> > return (-1); > >> > >> Is there a sane way here if we are on a uhci or ohci chipset? I > >> would prefer to check it and allow it if we are on an uhci chipset. > > > > I believe the change is relevant to both cases? > > Sort of. With the driver of hps, you can remove it entirely, but > with the driver in the base system, we have the restriction to only > remove this code for an uhci chipset (since the ohci driver has > problems with this duplex operation). So hps should provide a patch > with his driver which remove this code. Thanks for the clarification. (and indeed the change is also needed for the drivers from hps) Bart. -- Created with Open WebMail at http://www.bartsplace.net/ Read my weblog at http://soapbox.bartsplace.net/
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