Re: USB driver issue

Felipe Balbi
2008-07-30T12:05:11Z

Hi,

On Wed, Jul 30, 2008 at 2:59 PM, SUBHRANIL CHOUDHURY <subhra85-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Hi all,
> I am trying to validate the USB driver on OMAP3430 with the
> 2.6.22.18kernel. I am facing problems in the process while trying to
> do a USB
> transfer with DMA enabled.
> The apllication is breaking in a function called consistent_sync. The error
> message is like "Unable to handle kernel Null pointer".
>
> The issue is same with both OHCI and EHCI controller. And the issue is not
> coming if i disable DMA.
>
> Has anyone tried USB packet transfer with DMA enabled? Please let me know.

Why are you using such an old, support-less kernel ?

Try with current 2.6.26 out of git repository. I've been using musb
driver on omap3
for months now and it's working quite ok besides a few bugs hidden
here and there
(which I'm looking at).

ps: this list has moved to linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org and musb driver
is now being
discussed in linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org mailing list, so please, care
to Cc both lists
mentioned here.

--
Best Regards,

Felipe Balbi
felipebalbi-Rn4VEauK+AKRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
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