HI gang, I just installed SuSE 7.2 Professional and upgraded to the 2.4.6 kernel (SMP). For the very first time, I'm attempting to enable the USB controller on my motherboard to talk to my Epson 870 printer (which has both parallel and USB interfaces). The onboard controller is an 82371AB. I looked and noticed the following kernel modules loaded: usbcore printer usb-uhci I think this is correct. I've enabled verbose debugging messages in the kernel. I looked at /var/log/messages, and it is detecting my printer. Also, I ran a program called usbview and saw the printer there as well. OK so far. I tried: cat some_file > /dev/usblp0 I get about 1 line of output and then my entire system hangs (it completely ignores any keyboard input, mouse movements don't cause cursor movement, and the machine is unaccessible from the network). I end up reaching for the reset button and waiting forever for my disks to fsck (yes, Tim K. I'm seriously considering Reiser fs). :-) I'm not sure I know how to go about debugging this...any suggestions? Oh, by the way, I did insure that there were no parallel port modules in place that might somehow interfere. Thanks in advance, Andy -- Andy Stewart Founder Worcester Linux Users' Group Worcester, MA, USA http://www.wlug.org
Andy> I just installed SuSE 7.2 Professional and upgraded to the 2.4.6 Andy> kernel (SMP). For the very first time, I'm attempting to enable Andy> the USB controller on my motherboard to talk to my Epson 870 Andy> printer (which has both parallel and USB interfaces). The Andy> onboard controller is an 82371AB. What's you're motherboard? What kind of CPUs/memory do you have? Andy> I looked and noticed the following kernel modules loaded: Andy> usbcore Andy> printer Andy> usb-uhci This looks ok, but you might want to use the usb-ohci module instead. There are some issues. Andy> I think this is correct. I've enabled verbose debugging Andy> messages in the kernel. I looked at /var/log/messages, and it Andy> is detecting my printer. Also, I ran a program called usbview Andy> and saw the printer there as well. OK so far. This output would help us here. Andy> I get about 1 line of output and then my entire system hangs (it Andy> completely ignores any keyboard input, mouse movements don't Andy> cause cursor movement, and the machine is unaccessible from the Andy> network). I end up reaching for the reset button and waiting Andy> forever for my disks to fsck (yes, Tim K. I'm seriously Andy> considering Reiser fs). :-) Do you have MagicSysReq Key enabled in your kernel? I'd suggest you enable that (and make sure SUSE doesn't disable it like redhat does) and when the system locks, you can try and get a traceback to see what's up. Andy> I'm not sure I know how to go about debugging this...any Andy> suggestions? Oh, by the way, I did insure that there were no Andy> parallel port modules in place that might somehow interfere. That shouldn't matter, esp if you don't have your printer hooked up to both interfaces at the same time. As for your fsck woes, I'd get the latest version of ext3 instead, since you can enable/disable it without having to do a dump/restore conversion like you would for reiserfs. It's not in 2.4.6 by default, but it's easy to patch your kernel with it. Here's the URL: http://www.uow.edu.au/~andrewm/linux/ext3/ I'm running 2.4.6 with ext3 on SMP and it seems to work pretty well so far. No real stress testing yet tough. John
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Andy Stewart -
John Stoffel