apm.c and multiple battery slots

Stevie O (stevie@qrpff.net)
Fri, 01 Feb 2002 23:58:00 -0500

I have an Inspiron 8100 and 2.4.13-ac5, with apmd-final. (I'm holding off
upgrading until I stop seeing so much stuff about VM problems on lkml). It
has two battery slots, left and right.

If I put the battery in the left slot and run 'apm' I get

AC on-line, battery charging: 84% (4:12)

If I take out the battery and run apm I get

AC on-line, no system battery

If I put it into the right slot I get

AC on-line

and /proc/apm says I have -1% battery free and -1 minutes remaining ;)

--


The battery was designed to go into the right slot, not the left (left is 
where the floppy drive goes).



--


I went to apm.c to look into patching it to support multiple batteries.


I found this function:
static int apm_get_battery_status(which, status, bat, life, nbat <- battery #)


but it's #if 0'd out, and isn't referred to anywhere in the code. I looked 
at the changelog in the file to try to determine when it stopped being 
used, and why, but I found no useful information, and I can't even ask the 
person who did it, since they didn't tell me they did...





--
Stevie-O


Real programmers use COPY CON PROGRAM.EXE


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