[CLUE-Tech] USB trouble

Kevin Fenzi kevin at scrye.com
Fri Jul 30 11:02:50 MDT 2004


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>>>>> "Matt" == Matt Gushee <mgushee at havenrock.com> writes:

Matt> <mini-rant> Why the *%$Q@#&*() can't USB "just work," like SCSI
Matt> does? Grrr.  </mini-rant>

Matt> ...snip...

Matt> Buuuut, it's not working. Specifically:

Matt> Box #1: desktop, 2.4.18 kernel ------------------------------
Matt> This machine is a bit old and doesn't have built-in USB ports. I
Matt> bought an Adaptec USB2Connect 2000 adapter for it, but my system
Matt> isn't recognizing the adapter. When I try to

Matt>  # modprobe usb-ohci

Matt> I get "no such device" errors. I'm not positive it uses
Matt> OHCI--haven't found any docs on that yet--but since the chipset
Matt> is Compaq (?), I'm guessing it does. In any case, I get the same
Matt> errors with both uhci and usb-uhci modules.

Right. The linux kernel didn't add USB2 support until 2.4.19. 
So, your kernel is too old. ;) 

Can you upgrade to a more recent one?
Anything 2.4.19 and higher should have the ehci-hcd usb2 driver. 

Matt> ...snipp...

Matt>  * /proc/bus/usb exists but contains no files. Should it? This
Matt> Debian package of SANE depends on libusb, which (I have the
Matt> impression) is supposed to be an alternative to the
Matt> /proc/bus/usb mechanism, so maybe that's okay.

Yeah, there should be files, thats a usbdevfs virtual filesystem. 
Try: 

mount -t usbdevfs usbdevfs /proc/bus/usb

and see if that fixes it. 

kevin
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