Re: USB webcam not detected with VT82C586A UHCI USB controller

Alan Stern <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
On Sat, 16 Jun 2007, Guillaume Audirac wrote:

> Hello,
> 
> I am just following the recommandations of a USB driver developper.
> I have a USB webcam (Creative Live! Cam, Video IM Pro) which may be
> supported by the OV51x driver, but is not detected on the USB port.
> 
> Please find below the results of different commands. Do not hesitate to
> tell me if I can do some tests to help you.
> 
> Guillaume Audirac
> Ubuntu Feisty Fawn user
> 
> -------
> # in /var/log/messages after pluging the USB webcam
> Jun 16 13:37:17 phoenix kernel: [ 3277.781838] usb 5-7: new high speed
> USB device using ehci_hcd and address 2
> Jun 16 13:37:18 phoenix kernel: [ 3278.298822] usb 5-7: new high speed
> USB device using ehci_hcd and address 3
> Jun 16 13:37:19 phoenix kernel: [ 3278.815809] usb 5-7: new high speed
> USB device using ehci_hcd and address 4
> Jun 16 13:37:20 phoenix kernel: [ 3279.089011] usb 5-7: new high speed
> USB device using ehci_hcd and address 5
-------------------^
(Note that contrary to your Subject line, the USB controller here is 
EHCI -- not UHCI.)

This isn't much information.  You should build a kernel with 
CONFIG_USB_DEBUG turned on and then see what shows up in the dmesg log 
instead of /var/log/messages.

Alan Stern


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