usb audio and a 1 channel input device

[Alexander Leidinger]

Bart van Leeuwen <bart at bartsplace.net> wrote:

> On Fri, 10 Mar 2006 11:12:25 +0100, Alexander Leidinger wrote
>> Kazuhito HONDA <kazuhito at 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.

Bye,
Alexander.

-- 
http://www.Leidinger.net  Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org     netchild @ FreeBSD.org  : PGP ID = 72077137
JUSTICE:
	A decision in your favor.