[tlinux-users:07301] Re: ACPI problems with a Sattelite L10

> Well, I already know the gentoo doc and the ACPI linux
> ACPI project, but the problem is elsewhere. The DSDT
> itself is uncomplete, not buggy but uncomplete. The
> Toshiba Windows XP provides 2 drivers for the battery
> management.

Hello,

I am not that deeply involved in acpi hacking, but i managed to get sbs
working in GNU/Linux using an older patch than the one presented under

    https://sourceforge.net/projects/sbs-linux/

The above didn't work for may L10. I attached two files to this mail. Do
the following to get it working within your linux.

* acpi_sbs-20050120.tar.gz
* acpi_sbs-20050120-Toshiba-L10-Patch.diff

The second one is a div/0-bug patch written by myself, you have to apply
it the the sources in the tar.gz: (do a 

    patch -p1 < /path/to/acpi_sbs-2005-0120-Toshiba-L10-Patch.diff

in the extracted tar.gz. Hope you can make use of it ;-)

Here I am again. I recently installed a new Gentoo-Linux on my L10 and
again ran into the smart-battery-system issue within it. What to do:

0) Unpack and apply the patch i have attached to this email
    - unpack it into a temporary folder ~/tmp/ or so

1) Get a new Kernel
    - as i dont know what system you run i can't tell you what to take
    - just have a look for a kernel 2.6.XX, where XX is 10 and above (as
      for me i have a 2.6.12 running) -- you need the SOURCES!

2) Patch the Kernel with the patch above
    - run:  cd /usr/src/linux
    - then: patch -p1 < ~/tmp/acpi_sbs-20050120/acpi-ec-2.6.10.diff
      - this does some changes in the kernels acpi-stuff concerning the
        smart battery systems

3) Configure necessary kernel options
    - run: cd /usr/src/linux ; make menuconfig
    - de-select "AC Adapter" and "Battery" in ACPI_SUPPORT=20
        - we apply our own acpi drivers with that patch above, so the
          kernel ones have to be excluded
    - in "Device Driver"/"I2C-Support" select:
        - I2C-suppor
        - I2C-device interface

4) Now compile your kernel, i hope you have some experiences with it--
as i dont know what system you are running i cannot provide you help on
what special things you need to include in the kernel.

    - run: make && make modules_install
    - then mount your /boot partition (if you have a separate /boot)
      with: mount /boot
      and do an: make install
    - or you can do the install stuff by hand: just copy over the
      System.map and arch/i386/boot/bzImage over to your /boot and ajust
      your grub.conf ore lilo.conf to point to the new kernel-image

At this point you should check if your kernel does really work. Reboot.

5) If everything went well you should now compile the sbs-drivers:
    - cd ~/tmp/acpi_sbs-20050120/
    - make && make install
        - this will build the modules and install them to your
          /lib/modules/ directory, where all the kernel-modules reside

6) Now you should be able to get acpi information on your smart
batteries:
    - do a:     modprobe i2c-acpi-ec
    - and a:    modprobe acpi_sbs
    - check your proc for battery and ac-adapter status:
        - cat /proc/acpi/sbs/SBS0/SB0/state=20
        - cat /proc/acpi/ac_adapter/AC0/state

-- 
Best regards,
Fred Thiele                          GnuPG-Key: 0x4F6BE238 <[email protected]>

Airplanes are interesting toys but of no military value. -- Marechal
Ferdinand Foch, Professor of Strategy, Ecole Superieure de Guerre

diff -Naur acpi_sbs-20050120/acpi-sbs.c acpi_sbs-20050120-TL10Patch/acpi-sbs.c
--- acpi_sbs-20050120/acpi-sbs.c	2005-01-20 02:50:37.000000000 +0000
+++ acpi_sbs-20050120-TL10Patch/acpi-sbs.c	2005-09-06 08:17:42.000000000 +0000
@@ -1594,7 +1594,7 @@
 		seq_printf(seq, "charging state:          charging\n");
 		seq_printf(seq, "present rate:            %d%s\n",
 			   (sb->info.full_charge_capacity - sb->state.remaining_capacity)*cscale*60/
-			   sb->state.average_time_to_full,
+			   (sb->state.average_time_to_full==0?1:sb->state.average_time_to_full),
 			   sb->info.capacity_mode?"0 mW":" mA");
 	}
 	else {

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