[ltp] Fingerprint Reader -> USB -> no C3

[Florian Reitmeir]

On Tue, 19 Feb 2008, Michael Gaber wrote:

> well here the fingerprint-reader is only recognized (as new 
> input-device) and newly connected if an application requests a 
> fingerprint via pam.
> using thinkfinger-0.3 on gentoo

so it doesn't show up if you use 'lsusb'?



> >for some time now i've written some scripts to get my X60s to a low power
> >profile.
> >
> >One of the most power saving things is, to suspend the fingerprint reader,
> >because its an usb1 device which keeps the cpu in C2.
> >
> >if attaches the script, it uses HAL to detect the correct sysfs path of the
> >fingerprint reader.. 
> >
> >hw.thinkpad_fingerprint true -> disable the reader
> >hw.thinkpad_fingerprint false -> enable the reader
> >
> >true -> powersaving, false -> no powersaving
> >the sematic is made for debian where the pm-utils packages needs scripts 
> >like
> >this.
> >
> >for people who want to help ... or are brave enough for my scripts they are
> >under, http://power.reitmeir.org (a git archive), the fingerprint script is
> >attached.


-- 
Florian Reitmeir