USB switch

Net Llama! netllama
Mon May 17 11:57:17 PDT 2004


If i'm understanding you correctly, you're saying that you want to have 
the same filesystem (in the camera) mounted rw in two places at once?

On 12/24/03 06:38, Joel Hammer wrote:

> I need to get a usb switch which performs an electrical disconnect,
> similar to unplugging the USB device. 
> 
> I have a camera with a USB port. When the USB cable is plugged into the
> camera, the camera works as a camera. But, when the cable is plugged
> into the USB port on the computer, then the camera becomes simply a
> storage device. I can't take any pictures until the USB cable is
> unplugged from the computer. 
> 
> I bought a Belkin USB switch but as I feared, the switch is
> intelligent. If I deselect the camera with the switch, the camera still
> behaves just as a storage device.
> 
> I have tried to remove the USB drivers with rmod, but even with the
> drivers for the USB port removed, the camera still remains simply a USB
> storage device.
> 
> I have tried talking directly to several on line stores and manufacturers,
> but their sales reps don't know anything technical.  And, they don't
> get back to you with the information they promise.
> 
> So, I am getting desperate. Does anyone know of a device, aside from
> something I might custom build, that would do what I need? 
> 
> Now that I think about it, how hard would it be to build something like
> this? Building your own serial or parallel switch box is hard because
> there are so many wires and they have to be carefully switched in a
> certain sequence. Something to do with ground, whatever that is. But a
> hot pluggable device might be easier. Does anybody know if building such
> a switch box is easy?

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman                       	       netllama at linux-sxs.org
Linux Step-by-step & TyGeMo: 		    http://netllama.ipfox.com

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