On Thu, 10 Jan 2008, Sean Darcy wrote:

> But it's all fixed - probably by sunspots.
> 
> I unplugged the MyBook and moved it over to a laptop. That worked under 
> Fedora. Then I took it back to the original desktop, and that worked!!
> 
> Jan 10 14:02:57 testbox kernel: usb 3-1: new full speed USB device using 
> uhci_hcd and address 2
> Jan 10 14:03:10 testbox kernel: usb 3-1: new full speed USB device using 
> uhci_hcd and address 3
> Jan 10 14:03:10 testbox kernel: usb 3-1: configuration #1 chosen from 1 
> choice
> Jan 10 14:03:10 testbox kernel: Initializing USB Mass Storage driver...
> Jan 10 14:03:10 testbox kernel: scsi6 : SCSI emulation for USB Mass 
> Storage devices
> Jan 10 14:03:10 testbox kernel: usbcore: registered new interface driver 
> usb-storage
> Jan 10 14:03:10 testbox kernel: USB Mass Storage support registered.
> Jan 10 14:03:15 testbox kernel: scsi 6:0:0:0: Direct-Access     WD 
>   4000YS External  101a PQ: 0 ANSI: 4
> ..............
> 
> I think the key was unplugging the device. My bet is that when it's been 
> powered up for some period of time, it no longer makes whatever usb 
> noises it should make when the cable is connected.
> 
> 
> So now it Works For Me. Note is always did work under Windows. Perhaps 
> there's some usb signal that restarts the handshake from a device like 
> this that goes to sleep?

I wouldn't be so quick to assume it's working right.  Notice in the 
messages above: "full speed".  You don't want to operate a 500 GB drive 
at full speed.

This doesn't explain why the drive failed to work at full speed in your
earlier test, though.  Whatever the reason, you should verify that it
really does work at high speed.

Alan Stern

-
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to