My place to share some bits and bytes http://www.datenfreihafen.org/~stefan/weblog/archives/cat_4/ datenfreihafen.org, linux, and computer science. en-us Stefan Schmidt 2008-04-18T23:04:17+02:00 http://www.datenfreihafen.org/~stefan/weblog/archives/2007/09/#e2007-09-03T13_53_16.txt Mobile Developer Days 2007 are over 2007-09-03T13:53:16+02:00 Stefan Schmidt computer science, openezx, openmoko, freelancer Currently I'm with Mickey in a train back to Germany from Denmark. The last days I participated the Mobile Developer Days 2007. In contrast to the most other conferences I attend this one was not only about FOSS but more about developing software for mobile devices. Write applications in Python, Java, Open C, examples for location enabled applications, VoIP and rapid prototyping for artist are just a small extract of the program.

Mickey and me gave our talks about Open{Moko,EZX} and presented the community view in discussions.

Besides the different focus the event was also a lot smaller then the ones I usually attend. Around 40 people. So most of the attendees were speaker as well. Mixed up with the fact that many of the people are doing research in this area gave the conference a academic touch.

In the last weeks Mickey and me pondered if we really should attend as our travel and working schedules are pretty full, we did not got plane tickets and had to go two 10 hours train rides, etc.

In the end I'm happy we decided to go. Besides the talks especially the small group of people was a good place for interesting and informative discussions. Coming from the FOSS world and doing not much business besides OpenMoko it was quite interesting for me what people with a more commercial background are doing with mobile devices and what benefits and drawbacks they see in using FOSS for example.

During the days and nights we had some working session with normal OpenMoko stuff but also some hours on catching up with OpenEZX stuff. But that's another blogpost.

]]> http://www.datenfreihafen.org/~stefan/weblog/archives/2006/10/#e2006-10-30T21_32_13.txt Bug day 2006-10-30T21:32:13+02:00 Stefan Schmidt linux, computer science Jan Luebbe and me found a API breakage in dm-crypt in 2.6.19-rc3 which breaks yaird. Got a patch from Linus for it and it works again. Cool. :)

I also could confirm today that two other bugs I opened can be closed now. A problem with the new docking driver and my debian bug against gnome-btdownload.

But now I need to go back to my work on the ibm-acpi-led_subsystem.patch to get it ready for lkml submit.]]> http://www.datenfreihafen.org/~stefan/weblog/archives/2005/11/#e2005-11-16T22_44_13.txt IBM Thinkpad: 1802: Unauthorized network card 2005-11-16T22:44:13+02:00 Stefan Schmidt linux, computer science Today i want to test an new wireless lan card in my notebook. I am using a Philips 802.11a/b card in my T40p. Because i think it would be nice to have also 802.11g support, i try upgrade an Intel Pro Wireless 2915ABG card.
After having some trouble to get a T7 screwdriver, thanks to Daniel Willmann, replacing the card was no problem. But after power on the machine again the BIOS told me something like: "ERROR 1802: Unauthorized network card is plugged in. Power off and remove the miniPCI network card."
After some googling i found some interesting sites an information:
http://www.paul.sladen.org/thinkpad-r31/wifi-card-pci-ids.html
http://www.srcf.ucam.org/~mjg59/thinkpad/wireless.html
http://www.ussg.iu.edu/hypermail/linux/kernel/0406.1/1048.html
After get the information, the whole story is fast to tell. Get sourcecode, compile, execute and it works. No more bootup error. Now compiling the modules and making the card running was the smallest problem. I wrote this blog entry over wireless lan with my new card running. :)
Some words about the bad idea from IBM to have a whitelist for MiniPCI cards in there BIOS. I bought my notebook because of the quality and linux friendly hardware. But restrict the user in which card he can use in his notebook is not the right way. I think there are a lot of cards are working in Thinkpads, and are not on the whitelist. MiniPCI is standard to have compatibility.

]]> http://www.datenfreihafen.org/~stefan/weblog/archives/2005/10/#e2005-10-06T22_31_14.txt testing blogging 2005-10-06T22:31:14+02:00 Stefan Schmidt linux, computer science I'am not quit sure, if i start blogging.
But when i start, then i will use nanoblogger. I like static html pages insteed of this php stuff.

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