On Fri, 19 Mar 2004, Max Zaitsev wrote: > Hi folks, > > I've tried the described experiment and what I've seen seem to tell me that > it's really the device controller, who dies rather than anything in the host. > First of all, when the controller dies the "connection" LED on the USB hub > goes down. Secondly, the other USB2 device (usb-stick) continues to work > without any problems. So we seem to have troubles with the usb-storage driver > alone, do we? Alan, I'm really sorry about that, but looks like it's still on > you :-))
Maybe not. If you haven't already, take a look at this thread: http://marc.theaimsgroup.com/?l=linux-usb-devel&m=107962180123336&w=2 You should see if your device behaves in the same way. > Actually, another sanity check was to try to operate the device from within > vmware. And it worked! Slow, but worked. I think vmware uses EHCI driver to > pipe the USB traffic through, but not the usb-storage driver. Could we > probably make use of vmware setup to analyse the problem? That's interesting. Maybe the slowdown makes all the difference. I don't know anything about how vmware works internally. You were running a virtual Linux, but what was the underlying host operating system? My guess would be that vmware uses the host's EHCI driver together with the virtual usb-storage, but that could easily be wrong. Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
