On Tue, 14 Feb 2006, Jean-Philippe Mengual wrote:

> Hi,
> I'm using a 2.6.11.12 kernel. And I'd like to know  where I can find
> information or if you can  help me  yourself to make  work my USB
> ports on  a motherboard which has a   VIA chipset, KT266/A/333.
> Normally, when I connect  an external hd via  USB, in /dev, sdaX
> should  be created,  since I  ins!alled hotplug and udev. But it
> doesn't. Here's what I set in the kernel, about USB:

> In my BIOS, onchip USB Controller in "integrated peripherals" is "all
> enabled".
> lspci -v|grep USB says:
> 00:11.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller
> (rev 1b) (prog-if 00 [UHCI])
> Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
> 00:11.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller
> (rev 1b) (prog-if 00 [UHCI])
> Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
> 00:11.4 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
> Controller
> (rev 1b) (prog-if 00 [UHCI])
> Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller

> I said all what my system has. Other info: I checked my hd on a
> computer with a  knoppix, with a different motherboard, and it works.
> So, there must be a problem between my VIA card and the kernel.
> My /proc/bus/usb stays empty. I have in fstab:
> none            /proc/bus/usb   usbfs  defaults                      0
> 0
> 
> I mounted manually the fs:
> mount -t usbfs none /proc/bus/usb
> 
> But /proc/bus/usb stays   empty, even after I plugged again my hd.
> Could you explain me why kernel doesn't
> seem to see USB? Where can be the problem?

Is the uhci-hcd driver module loaded?

>  Because physically, I don't
> think there's a problem, since USB is integrated on the motherboard.
> Should I build a newer kernel? Can I ask to another ML, instead of
> disturbing you? Is it a problem to build OHCI AND UHCI, maybe one
> single controller is better? Aren't there any conflicts?
> I wonder if the kernel supports correctly VIA chipset, USB support.

What shows up in the dmesg log after you boot?

Alan Stern



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