Hi, On Wed, Jul 23, 2003 at 09:28:30AM -0500, Michal Sabala wrote: > I use kernel 2.4.21 with scanner module that came with that kernel. I > have an Epson CX5200 printer/scanner/copier device. As of right now I > load all my needed usb modules on system boot. What often happens is the > scanner doesn't respond when xsane tries to scan. I have to wait for > xsane to time-out and unload/reload scanner.o. Sometimes this fixes the > problem. When it doesn't work, reloading usb-uhci does help half of the > time. I suspect it might be a bigger usb problem than just limited to > scanner.o. I haven't tried using libusb, but since the problem doesn't > seem limited to scanner.o, I don't think it will help. The only > diagnostic message given by the kernel is: > > kernel: usb_control/bulk_msg: timeout
I think your diagnosis is right and it's not a scanner.o problem. I've read similar reports especially with UHCI controllers. > Please tell me what else I can try, or what other information to > provide. My standard advice is to try to disable the use of an APIC if that's enabled in your kernel. You could also try the "uhci" module instead of "usb-uhci". Or try a 2.6.* kernel :-) > And out of curiosity, is there a reason why usb devices don't work with > alias char-major-..... in /etc/modules.conf? Probably yes, but I don't know it :-) Well, maybe it would conflict with hot-plugging? Bye, Henning ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100006ave/direct;at.asp_061203_01/01 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
