On Tue, 13 Apr 2004, Matthew Dharm wrote:

> On Tue, Apr 13, 2004 at 12:39:32PM +0200, Johan Braeken wrote:
> > Dear all,
> > 
> > I was investigating very slow USB speed from my digital camera (24MB in 30 
> > minutes) and stumbled upon this message in the logs:
> > 
> > usb-storage: This device (0686,4006,0001 S 06 P 50) has an unneeded SubClass 
> > entry in unusual_devs.h
> > Please send a copy of this message to <[EMAIL PROTECTED]>
> 
> This part of the mesage has nothing to do with any sort of slowness.
> 
> > uhci_hcd 0000:00:1d.0: uhci_result_control: failed with status 440000
> 
> This, however, might.  It suggests that all is not well in your setup.

You probably don't have to worry about that particular error.  Most likely 
it just means something went wrong when the driver tried to retrieve the 
Vendor, Product, or Serial Number string from the device.

To determine the reason your transfers are so slow, we need to see a lot 
more of your usb-storage debugging log.

Alan Stern




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