On Fri, Nov 28, 2003, Ian Carr-de Avelon <[EMAIL PROTECTED]> wrote:
> I have a Sony DSC-P92 camera with switches to transfer mode when the USB cable
> is connected. I assume the cable is detected by the power pins and wonder 
> whether there is some standard way to power down the USB bus to save pluging 
> the cable in and out each time.

It's possible. Part of the capabilities of a hub is to control power,
although some USB hubs are what is called ganged power switching, but
those are relatively rare as far as I've seen.

The only problem is there is no way to tell the hub driver to remove
power from a port right now.

One could do it behind the back of the hub driver, but I don't think
that would be a good idea, but I would have to take a look at the code
to make sure.

JE



-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
Does SourceForge.net help you be more productive?  Does it
help you create better code?  SHARE THE LOVE, and help us help
YOU!  Click Here: http://sourceforge.net/donate/
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-users

Reply via email to