Re: USB bus fails to see devices

[Haines Brown <brownh@hartford-hwp.com>]

Nigel Henry <cave.dnb@tiscali.fr> writes:

> Just a thought, and I don't know which kernel you were using when
> all your usb devices were working ok, but I installed Debian from
> Woody disks which were upgraded to Sarge, and with the 2.6 kernel
> IIRC I had problems with my usb midi keyboard, and had to add to
> /etc/modules uhci_hcd. I see that that module isn't showing on your
> list.
> 
> Currently running Sarge, Etch, and Lenny. Only 2 devices on the USB
> though.  The usb midi keyboard, and a webcam.

The kernel that supported my camera was 2.6.18-4-686, but that same
kernel since last week no longer sees the camera.

You loaded the module uhci_hcd. That module I don't have loaded:

	$ lsmod | grep 'usb\|hci'
	usb_storage            71840  0 
	usblp                  12768  0 
	scsi_mod              124168  6 usb_storage,sbp2,sd_mod,libata,
					aic79xx,scsi_transport_spi
	ehci_hcd               28136  0 
	ohci1394               30800  0 
	ieee1394               86904  3 sbp2,eth1394,ohci1394
	ohci_hcd               18276  0 
	ide_core              110504  4 usb_storage,ide_cd,amd74xx,generic
	usbcore               112644  5 usb_storage,usblp,ehci_hcd,ohci_hcd

I thought the choice of ehci, ohci, uhci depended on one's MB
chipset. In any case, I loaded the uhci module and reconnected the
camera, but nothing reported in syslog, and the camera is not reported
by $ lsusb.

I'm concerned that I apparently no longer have usbdevfs mounted. Is
that a thing of the past with Etch? If it should be loaded and is not,
I'd surely experience troubles seeing USB devices.

Also, I don't have /proc/bus/usb/drivers . That used to be the mount
point for usbdevfs.

-- 
 
       Haines Brown, KB1GRM