Am Montag, 1. Januar 2007 21:56 schrieb Andrew Barr:
quoted text
> I have a simple question perhaps someone can help me with here...
> 
> I have one of those simple LED keyboard lamps that get their power from
> the USB port. Is there some way in Linux, using files under /sys I would
> imagine, to cut power to the USB port into which this lamp is plugged? I

You could use usbfs to send commands to the hub.

quoted text
> know I would have to manually figure out what port it's plugged into, as
> it is not a "real" USB device...e.g. it just draws power. I would like
> to be able to programmatically switch the lamp on and off.

The ability to cut each port's power individually is optional. Your
hardware may well be incapable of what you want.

	Regards
		Oliver

-
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/