On Sun, 5 Dec 2004, Eero Volotinen wrote:

> usb 1-4: new high speed USB device using ehci_hcd and address 4
> usb 1-4: khubd timed out on ep0in
> usb 1-4: string descriptor 0 read error: -71
> usb 1-4: string descriptor 0 read error: -71
> usb 1-4: string descriptor 0 read error: -71
> usb 1-4: string descriptor 0 read error: -71
> usb 1-4: string descriptor 0 read error: -71
> usb 1-4: string descriptor 0 read error: -71

> and kernel is:
> 
> Linux tuxor 2.6.10-rc3-ck1 #1 Sat Dec 4 15:26:16 EET 2004 i686 athlon 
> i386 GNU/Linux

Was the behavior different with older kernels?  Do you know at what point 
it changed?

What happens if you unload the ehci_hcd driver before plugging in the 
drive?  Obviously it will only run at full speed, not high speed, but do 
the same errors show up?

Can you turn on the verbose USB debugging switch in the kernel 
configuration and see what it shows?

Alan Stern



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