Re: USB with SDHC card not recognized in 2.6.39 and 3.0rc4

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On Mon, 27 Jun 2011, Matthew Dharm wrote:

> On Sun, Jun 26, 2011 at 03:52:56PM -0700, Peter Rasmussen wrote:
> > The latest kernel I'm able to use a number of my USB-SD adapters is 2.6.38, and 
> > as 3.0 (now rc4) doesn't seem to get it right either I'm writing you. 2.6.39 
> > didn't work either.
> > 
> > I collected info in two files, one for 2.6.38 and one for 3.0rc4, and I hope it 
> > can be helpful.
> > The 2.6.38 file shows some adapters working and some not, which is an issue I 
> > would like to chase later, but for now I would be happy with just one of them 
> > working (like before in 2.6.38).
> > 
> > All tests are carried out with the same 8GB SDHC flash card inserted into the 
> > adapters.
> 
> I took a quick look at these logs... to me, these look like some change in
> the SCSI layer mode-sense handling.  Anyone have any ideas what changed?

It might be helpful to have a usbmon trace, so we can see what data the
SCSI layer is getting.  Peter, can you follow the instructions in 
Documentation/usb/usbmon.txt?

Alan Stern

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