Re: [crisos] Re: kmod-usb-sound?

["Oscar Eriksson" <oscar.r.eriksson@xxxxxxxxx>]

Thank you both of you for your support.

I will let you know how it goes.

The errata seems to concern periodic and control data in same USB frame. Does the driver have to send control data during use, or is it just used once to set audio format? If the latter, I don't think this will be a problem.

/Oscar

On Thu, Jan 8, 2009 at 9:59 PM, Salvatore Lionetti <salvatorelionetti@xxxxxxxx> wrote:

Hi,

i'm also interested in audio over usb

On technical description
- Etrax 100LX only support control and bulk tranfer,
- Etrax FS declare to support every usb transfer type.

Moreover the errata about 100lx at http://developer..axis.com/wiki/doku.php?id=axis:etrax_100lx_errata
confirm some pb, at least on V2

On the other side some sw patch was applied in latest kernel revision, that perhaps could circunavigate the hw pb
http://mhonarc.axis.se/dev-etrax/msg03320.html
patchwork.ozlabs.org/patch/292/mbox

I've not tryed such fix (converged on other project), but thank you if you'll try and post result on this mailing list.

Have a good day

Have a good day


--- Gio 8/1/09, Claudio <claudyus84@xxxxxxxxx> ha scritto:

> Da: Claudio <claudyus84@xxxxxxxxx>
> Oggetto: Re: [crisos] Re: kmod-usb-sound?
> A: crisos@xxxxxxxxxxxxxxxxxxx
> Data: Giovedì 8 gennaio 2009, 09:48

> 2009/1/8 Oscar Eriksson <oscar.r.eriksson@xxxxxxxxx>:
> > I noticed now that I don't have the choice
> "Sound Support" in
> > kernel_menuconfig when building for target Foxboard. I
> have this choice if I
> > select target x86 instead. I also tried target
> bcm63xx, and this target did
> > not have "Sound Support".
> >
> > Is usb-sound simply not supported on all targets? I
> think usb-sound should
> > be a high level driver that is common for all targets
> and doesn't need
> > patches. Am I wrong?
> >
> >
>
> Hi Oscar,
> as you correctly say not all driver are support in any
> target. This is
> the case of sound driver and other.
> On cris linux kernel a lot of standard linux driver are
> missing.
> I enable some of this in patches/400-scsi_import.patch ,
> can you try
> to add something like source
> "drivers/sound/Kconfig" too.
>
> Let me know if it works!
>
> Regards
>
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