Trying to use active USB 2.0 extension cable.

jim cinetron-uEvt2TsIf2EsA/PxXw9srA at public.gmane.org
Fri Dec 4 16:14:16 UTC 2009


On Fri, 2009-12-04 at 04:54 -0500, Mark Lane wrote:
> On Fri, Dec 4, 2009 at 3:04 AM, jim <cinetron-uEvt2TsIf2EsA/PxXw9srA at public.gmane.org> wrote:
>         I'm trying to use an active USB 2.0 extension cable and it
>         doesn't seem
>         to be recognized properly. I'm using Ubuntu Jaunty
>         ( unfotunately the
>         modules are compiled into kernel or I'd try removing uhci_hcd)
>         Below is
>         dmesg output:
>         
>         usb 2-2: new high speed USB device using ehci_hcd and address
>         9
>         hub 2-0:1.0: unable to enumerate USB device on port 2
>         usb 6-2: new full speed USB device using uhci_hcd and address
>         3
>         usb 6-2: not running at top speed; connect to a high speed hub
>         usb 6-2: configuration #1 chosen from 1 choice
>         hub 6-2:1.0: USB hub found
>         hub 6-2:1.0: 4 ports detected
>         
>         At first it is recognized as USB 2.0 device ie ehci_hcd driver
>         but
>         ultimately becomes uhci_hcd device. It is this device
>         http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=2329301&CatId=444
>         
>         Maybe it is just a lousy device. Problem is I can't get a USB
>         2.0 web
>         camera to work properly with it. Can anyone recommend an an
>         active USB
>         2.0 extension that works with Linux . Eventually I need about
>         30 feet so
>         was hoping to use two of these. The literature says you can
>         string up to
>         5 together. I know my USB bus is ok since USB 2.0 hubs work ok
>         and the
>         camera works ok when directly plugged into my computer. Any
>         suggestions?
>         Eventually I will be hooking up 4 cameras.
>         Thanks,
>         Jim
>         
> 
> Have you considered wireless Cameras? I was going to suggest just
> plugging the camera into an ASUS router that supports dd-wrt but since
> you want 4 eventually it would be cheaper just to buy wireless cameras
> as I assume you don't want the cameras all in the same place.
> 
> Here's an example. You can control the camera through a browser.
> 
> http://www.dlink.com/products/?pid=342 
> 
> 
> -- 
> Mark Lane <lmlane-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>
> 
Thanks, The cameras I'm using have been modified to work with infrared
light so I can't use just any camera unfortunately. This is for an
interactive art installation and the cameras have to be about 15 to 20
feet apart.
Jim

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