[ltp] Fingerprint reader occasionally gets hot (T61)

[Tino Keitel]

On Sat, Aug 02, 2008 at 23:00:54 +0200, Daniel Di Giacomo wrote:
> On Freitag, 1. August 2008, Tino Keitel wrote:
> > Try this:
> > 
> > $ for i in `find /sys/devices/*/*/usb* -name level` ; do echo -n "$i: " ; cat $i ; done
> > 
> > If there is one ore more device in state "on", use lsusb to get the
> > vendor/device ID of the fingerprint reader, and check if it matches one
> > of the devices in state "on". Example:
> > 
> > output of the above for loop:
> > 
> > /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-1/1-1.1/power/level: on
> 
> This loop comes back very silently on my T61 :-P
> There is nothing like "level" in /sys/$DEVPATH/power/ only one entry named "wakeup".

Maybe your kernel lacks USB suspend support.

Regards,
Tino