USB devices in 2.5.xx do not show in /dev

I'm trying an 2.5.66-mm kernel on 1386

I have 3 USB devices connected.
The mouse works - mostly (no wheel support)
But scanner and printer do not work.

The modules scanner and usblp seem to load fine

Apr  6 14:14:37 lisaserver kernel: drivers/usb/core/usb.c: registered
new driver usbscanner
Apr  6 14:14:37 lisaserver kernel: drivers/usb/image/scanner.c:
0.4.11:USB Scanner Driver
Apr  6 14:15:50 lisaserver kernel: drivers/usb/core/usb.c: registered
new driver usblp
Apr  6 14:15:50 lisaserver kernel: drivers/usb/class/usblp.c: v0.13: USB

Printer Device Class driver

but I do not get the devices under /dev to actually use them

I have a gentoo system that uses
* sys-apps/devfsd

      Latest version available: 1.3.25-r3
      Latest version installed: 1.3.25-r3

to load /dev

any ideas?

thanks
Jens

Jens Ansorg <[email protected]>

You have to have an actual device for the /dev node to show up. Do you have any USB devices plugged in? What does:
tree /sys/bus/usb/
show?

thanks,

greg k-h

yes, I have both, a scanner and a printer plugged into the computer

but there is nothing under /proc/bus/usb, it's empty

(there is no /sys/ on my PC?)

the usbview application also complains that there is no usbfs although it gets registered by the core usb driver

drivers/usb/core/usb.c: registered new driver usbfs

everything works with 2.4.20 - so the hardware is ok

thanks
Jens

Jens Ansorg <[email protected]>

Please see:

	http://www.linux-usb.org/FAQ.html#gs3

You probably have to mount usbfs yourself, as some distro's startup scripts seem to not like 2.5 and don't do it for you.

Make the directory:
mkdir /sys
and then mount sysfs there:
mount -t sysfs none /sys

Edit your /etc/fstab to add it so that it is always mounted at startup.

Sounds like you don't have a USB host controller driver getting loaded, right? What does lsmod show?

thanks,

greg k-h

yea!!!
That's it!!!!

since the USB mouse basically worked I never thought that there is some usb stuf missing ...

and of course the controler module got renamed from 2.4.xx :))

everything works now and my scroll wheel issue got also solved by loading the host controller

Can now use 2.5 as the default system. I need it because the wlan driver seems much more stable than on my 2.4 system

thanks for the hints

Jens Ansorg <[email protected]>