None of my connected usb devices function any more. I didn't notice when it started, but using USBViewer, it tells me that proc/bus/usb/devices doesn't exist, and sure enough it doesn't. If I check modules.conf I see no mention of USB. How do I get the relevant usb modules to load at boot?

Thank you!

Have you changed anything recently? Or did they just dissappear for no reason? Have you tried to manually load the modules at all? If so, any errors or do they load?

sounds like my last few days.... i'd guess that you're not mounting the usb file system in the first place:

mount -t usbdevfs none /proc/bus/usb

I tried the mount instruction provided above, and get a mount point error. I have found that my usb modules are not loading automatically. By doing a /sbin/modprobe usbcore and /sbin/modprobe/ usb-uhci my usb ports come to life, and the mount of usbdevfs works, as well I can now see all of my usb devices in usbviewer. Now, how do I get those modules to load on reboot?

Thanks

None of my USB devices work either, however I can modprobe all the correct modules and also perform that mount command without error. Why is this? Another strange thing is that the red light on the bottom of the USB mouse is off (it only turns on for a brief instant when being plugged in). I've been working on this problem for a while and I have absolutely no idea what is going on, anyone have any tips?

dave37: Put the modprobe commands you want executed on startup into your /etc/rc.d/rc.modules file

Got it working! As advised, created a startup script and placed it in /etc/rc.d/init.d named usbstart and another in /etc/rc.d/rc5.d named S07usbstart (startup link) and it works fine.
Below is the content of the script in case it is helpful to anyone else

#!/bin/bash

# USB start, workaround for usb modules not loading automatically at boot
# place one copy in /etc/rc.d/init.d and name it usbstart and one in
#/etc/rc.d/rc5.d named S07usbstart
# ensure that the files in both have full r/w permissions in order to execute
# you can do this with chmod 755 S99usbstart and chmod 775 usbstart from each of
#the directories where you placed the files.
# Note the above /etc/rc5/d refers to run level 5. If you have a different run
#level then change the 5 to whatever your current run level is.
# provided with no restrictions, modify as you wish, no warranty implied nor is
#the author responsible for any problems caused by use of this script.


# loading usbcore

/sbin/modprobe usbcore

#loading usb-uhci

/sbin/modprobe usb-uhci

#loading human interface device

/sbin/modprobe hid

#mounting usbdevfs filesystem

mount -t usbdevfs none proc/bus/usb


#Done!

Named one usbstart and stored it in /etc/rc.d/init.d and chmod 755 usbstart to
have the correct file permissions.

Put a copy and renamed it to S07usbstart in /etc/rc.d/rc5.d Also chmod 755
this one for correct file permissions. The S07 means start service seventh.
This ensures that the usb subsystem is loaded before any devices which may need
it.

Sorry for this post.