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Date: Fri, 01 Feb 2002 23:58:00 -0500
To: linux-kernel@vger.kernel.org
From: Stevie O <stevie@qrpff.net>
Subject: apm.c and multiple battery slots
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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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