[ltp] what to use to save battery

[Andrew Barr]

On Wed, 2006-09-06 at 19:25 -0400, Jiang Qian wrote:
> Hi Andrew:
> Could you be more specific on how I can turn off the fingerprint reader?  
> I'd like to be able to turn it off when I'm on battery but turn it back 
> on when on AC. Thanks.

I think you use the 'unbind' file in sysfs to detach the device from the
USB bus. Someone else will have to be more specific on how to do this
because I don't have anything attached to my Thinkpad's internal USB
bus.

Andrew