Re: [POWER] battery calibration parameters from sysfs

From: Alexander Clouter
Date: Fri Dec 04 2009 - 07:08:41 EST


Linus Walleij <linus.walleij@xxxxxxxxxxxxxx> wrote:
>
> [snipped]
>
> Is probably not very elegant. (Or is it?) Would it be permissible to
> pass in a table like:
>
> cat >/sys/.../v_vs_cap <<EOF
> x0,y0
> x1,y1
> x2,y2
> EOF
>
> And have the kernel parse x,y pairs up to EOF?
>
> Or would it be preferable to do this thing by creating some
> misc device node like /dev/battery0 and a custom ioctl()?
>
> Or is there some other way I haven't thought of?
>
Although I'm a 'nobody' I would probably go for:
----
echo x0,y0:x1,y1:....
----

Pairs are seperated by ':' whilst values with ','. I guess you could
just use comma's all the way but I personally say that reduces
readability...also means that maybe one day you want to pass only one or
three values...the format could still work.

Easy to parse, a one liner, no fixed length, fits in with the existing
use, etc etc.

Cheers

--
Alexander Clouter
.sigmonster says: You'll be sorry...

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