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

[Michael Gaber]

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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

Florian Reitmeir schrieb:
> Hi,
> 
> 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.
> 
> 

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