Travis Geiselbrecht's Home Page

Just another systems hacker in Silicon Valley. I like playing guitar, riding motorcycles, hacking computers... The usual.

I've put in some time at some interesting companies in my relatively brief career.

Jawbone - Real-time embedded OS hackery
Palm - Linux hacking for fun and profit!
Secret Level - Did some hackery on getting the most (or anything) out of the PS3.
Apple - Did some hackery on iPhone bringup. What an amazing ride!
Danger Inc. - Hacked low level and kernel code on the Danger hiptop (aka T-Mobile sidekick). Good set of folks and fun technology. I wish them well.
Be Inc. - Worked on the venerable BeOS operating system. Did some file system and kernel work, most notably hacked together support for the ext2 and NTFS file systems. It was a total blast, and made a lot of good friends. RIP BeOS.

Hacked on a few projects in my day, one of which is pretty well known in certain circles.

NewOS - A OS project I started years ago and didn't know when to stop. It's reasonably well mature, and even scored a slahdotting and offer to write an article for Dr Dobbs magazine. It has been forked years ago and now forms the kernel for the Haiku project.
lk embedded kernel - little embedded style kernel for some ARM devices. source at git://github.com/travisg/lk.git. Web browseable here.
Arm Emulator - Hacked a fun little arm emulator. Still needs some work, but it currently emulates a "generic" ARM based system. Good for prototyping a kernel. SVN depot at git://github.com/travisg/armemu.git. Web browseable here.
Apple ][ Emulator - A cheezy little Apple ][ emulator I wrote a long time ago for fun. Source here. Here and here are a couple of screenshots.

Email at geist-no-spam@foobox.com. Remove the -no-spam part.
IRC - you can usually find me on #osdev and #newos on irc.freenode.net. I'm geist.
AIM - tkgeisel