On Fri, 26 Mar 2004, Matthias Andree wrote: > Although it appears to contain Alan's patch, it doesn't quite work. It's > OK as long as I don't run a scanner application software and usbmodules > (old version) at the same time.
Don't use that old version of usbmodules! > If I run usbmodules during xsane, I'm > getting > > usb 3-2: control timeout on ep0in > usbfs: USBDEVFS_CONTROL failed cmd usbmodules dev 2 rqt 128 rq 6 len 18 ret -110 > > If I then try an application again, it won't work; not even after power > cycling the scanner. This is in dmesg: > > usb 3-2: bulk timeout on ep2in > usbfs: USBDEVFS_BULK failed dev 2 ep 0x82 len 4096 ret -110 > usbfs: USBDEVFS_BULK failed dev 2 ep 0x82 len 4 ret -75 That -75 error code is "babble", and it's a fatal error for VIA USB controllers. (It shouldn't be, but we don't know how to get around it at this time.) Once you get that error, nothing at all will work on that USB controller. > The kernel hasn't registered the scanner. Plugging the scanner into a > different port seems not to help either, but just solicits this line in > dmesg: > > uhci_hcd 0000:00:10.0: suspend_hc > > > lspci data for reference: > 00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 81) > 00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 81) > 00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 81) > 00:10.3 USB Controller: VIA Technologies, Inc. USB (rev 81) > 00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86) The only way to make the controller start working is to rmmod the uhci-hcd driver and then modprobe it again. > > As I recall, there were two bugs there. One was a "usbfs broken" > > bug, which this patch should resolve. > > Is the state I can get my scanner in 'resolve'd? It's a separate problem. Take my advice, just avoid all these difficulties by not running usbmodules. 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
