nion's blog

I just released a new version of yacpi. yacpi displays various ACPI information like batteries, ac status, thermal zones, fans and some information about CPU.

The new release is a complete rewrite based on libacpi (yacpi is now the 3rd tool using libacpi).
For those of you already using yacpi here are the relevant changes:

• yacpi now depends on libacpi, compile, install, ldconfig


• -m option removed, default is to display just the present batteries, use -n if you want to see not found items too


• Removed interactive delay input in ncurses interface, restart yacpi if you feel like changing it


• Samples are not needed anymore, I rewrote the algorithm to compute remaining time in libacpi


• Immediate reaction on user input in ncurses interface, thanks select(2), fuck halfdelay(3)


• New options for every feature, the default is to print everything but you can now decide what you exactly want to see, check yacpi -h for new parameters.

Quite some things changed so if you use yacpi in shell scripts, check for the new command line options.

Ncurses:


Plain-Text (yacpi -p):
| BAT0 = 100% discharging rtime 04:49 h | ac = off-line | THRM = 50 C | gov = ondemand | cpu = 600/1500 mhz

Have fun: http://www.ngolde.de/download/yacpi-3.0.tar.gz, http://www.ngolde.de/download/libacpi-0.2.tar.gz.

For those of you who are interested in ACPI on Linux especially in things like when it comes to ACPI vs. APM or why it is not usually not ACPIs fault that your suspend to disk is not working I can recommend the following paper presented at the Linux Symposium:
https://ols2006.108.redhat.com/2007/Reprints/brown_1-Reprint.pdf

Very interesting to read.
[via linux kernel monkey]

After asking for testers of a libacpi snapshot I got a fair amount of test mails. Thanks to all the people who tried it and helped me!!

Now I finished with coding, testing and documenting everything and happy to release version 0.1 of libacpi.

It is a general purpose shared library for programs gathering ACPI information. It fully implements information about fans, batteries, ac states and thermal zones (apart from trap points).

Try it out on: http://www.ngolde.de/download/libacpi-0.1.tar.gz.

There is also an online documentation (well doxygen generated) on http://www.ngolde.de/libacpi/doc/html/.
test-libacpi.c is an example on how to write programs using libacpi.

For more information download the tarball, have a look into the manual, test-libacpi.c, README and the doxygen documentation.

The next step for me is to port yacpi to libacpi which was also the reason for libacpi since I first wanted to rewrite it and thought it might be useful to have the functionality in a library. There are not yet Debian packages for it because I am really busy at the moment so if you want to maintain it, feel free to do so.

During the last time I developed a general purpose library for ACPI on linux.
Initially I just wanted to rewrite yacpi but since there is no shared lib for acpi information I decided to
put the important stuff in a seperate library.

Before releasing it I want some people to test it because my notebook doesn't support all of the information it can gather.

If you want to help me a bit, download a snapshot from:
http://nion.modprobe.de/libacpi-unreleased.tar.gz.

Install cmake, unpack the tarball and do:
$ cmake .
$ make
$ ./test-libacpi

and send me the output of test-libacpi together with tmpfile which should be generated like:

for i in `find /proc/acpi -type f`; do
    echo -e "FILE: $i ================\n" >> tmpfile
    cat $i >> tmpfile
done

via mail to:


Thanks!

UPDATE: yes I totally fucked up the install instructions and the generation of the tmpfile Sorry.
And in case I didn't reply to every mail I got until now, thanks very much for you help all!