sony-vaio-z-series team mailing list archive

[Florian Langlois <chamois94@xxxxxxxxx>]

Yes this is a problem with the redirection and sudo. You should use : sudo
sh -c 'echo 1 > /sys/devices/platform/sony-laptop/battery_care_limiter' .

Regards

Florian

2011/7/27 Brett Howard <brett@xxxxxxxxxxxxxxxxx>

> Ok so I've got a 3.0 kernel in place along with the headers and I've
> been able to compile and load this module... I now have the files in
> place...  However running "sudo echo 1 >
> /sys/devices/platform/sony-laptop/battery_care_limiter" results in a
> permission denied...
>
> Any thoughts?
>
> ~Brett
>
> On Sun, Jul 24, 2011 at 6:51 PM, Norbert Preining <preining@xxxxxxxx>
> wrote:
> > On Fr, 22 Jul 2011, Brett Howard wrote:
> >> How does one set the battery care function once running this kernel?
> >
> > Short description I wrote up ...
> > ---------------------------
> > The following files in /sys/devices/platform/sony-laptop
> > allow controlling various aspects.
> >
> > The documentation here was created by Norbert Preining by reading the
> > source, so it might be wrong and burn your computer ;-)
> >
> > lid_resume_control
> >        controls resume when lid is opened
> >        0       do nothing
> >        1       resume from S4 (ram)
> >        2       resume from S3 (disk)
> >        3       resume from S4 and S3
> >
> > odd_power
> >        controls the cdrom drive connection
> >        0       disconnected (off)
> >        1       connected (on)
> >
> > battery_care_limiter
> >        controls up to which level a battery is charged
> >        0       no limit
> >        1       80%
> >        2       50%
> >
> > thermal_control
> >        controls the temperature/fan activity (AFAIU)
> >        0       balanced
> >        1       performance
> >        2       silent
> >
> > thermal_profiles
> >        number of different profiles???
> >
> > touchpad
> >        turns touchpad on or off
> >        0       off
> >        1       on
> >
> > -------------------------------------
> >
> >
> >> there some user space application that comes along for the ride?  I've
> >
> > Yes, there is a user space, actually two: "cat" and "echo", the first
> > for reading the value of the setting above, the other for writing ;-)
> >
> > Best wishes
> >
> > Norbert
> > ------------------------------------------------------------------------
> > Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
> > JAIST, Japan                                 TeX Live & Debian Developer
> > DSA: 0x09C5B094   fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
> > ------------------------------------------------------------------------
> > SWANAGE (pl.n.)
> > Swanage is the series of diversionary tactics used when trying to
> > cover up the existence of a glossop (q.v.) and may include (a)
> > uttering a high-pitched laugh and pointing out of the window (NB. this
> > doesn't work more that twice); (b) sneezing as loudly as possible and
> > wiping the glossop off the table in the same movement as whipping out
> > your handkerchief; (c) saying 'Christ! I seen to have dropped some
> > shit on your table' (very unwise); (d) saying 'Christ, who did that?'
> > (better) (e) pressing your elbow on the glossop itself and working
> > your arms slowly to the edge of the table; (f) leaving the glossop
> > where it is but moving a plate over it and putting up with sitting at
> > an uncomfortable angle the rest of the meal; or, if the glossop is in
> > too exposed a position, (g) leaving it there unremarked except for the
> > occasional humorous glance.
> >                        --- Douglas Adams, The Meaning of Liff
> >
>
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