Re: imx21-hcd bugs, device descriptor read/64, error -110

David Brownell <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <20070814153504.3BAC223549E@adsl-69-226-248-13.dsl.pltn13.pacbell.net>
> > > This version of the source code is clearly preliminary and
> > > experimental.  It shouldn't be expected to work perfectly.
> > 
> >     Hmm. I would like to fix the driver for myself. Can you please
> > provide me a pointer a similar USB driver? (I mean a driver written
> > with a similar style - If none, then the best USB driver.)
>
> The one most suited for what you want is probably the sl811 driver;
> however I don't know how close a match it is to the imx21 hardware.  

Why do you say that?  It's certainly the simplest (and I suspect the
easiest to understand!) but I don't think that would help much here.
(Except maybe for the "what is this supposed to do" learning curve.)

The iMX21 hardware seems OHCI-ish, modulo some OTG additions that
I'd expect are turned off in that code.  So the real OHCI driver, or
maybe the isp116x code (OHCI-ish but likewise not real OHCI) would
probably offer more useful guidance.

- Dave


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