Kristoffer Ericson is a Swedish

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 Linux

Linux

Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...

 coder best known for his work on embedded system

Embedded system

An embedded system is a computer system designed for specific control functions within a larger system. often with real-time computing constraints. It is embedded as part of a complete device often including hardware and mechanical parts. By contrast, a general-purpose computer, such as a personal...

s. He currently maintains two platforms in the Linux kernel and sponsors several others.
He is also the co-founder of the jlime

Jlime

Jornada Linux Mobility Edition is a Linux distribution originally only aimed for the HP Jornada platform. It was created in Late 2003 by Kristoffer Ericson and Henk Brunstin.It's being developed using the OpenEmbedded build system....

 project targeted at several embedded devices.He has ported slackware

Slackware

Slackware is a free and open source Linux-based operating system. It was one of the earliest operating systems to be built on top of the Linux kernel and is the oldest currently being maintained. Slackware was created by Patrick Volkerding of Slackware Linux, Inc. in 1993...

 and debian

Debian

Debian is a computer operating system composed of software packages released as free and open source software primarily under the GNU General Public License along with other free software licenses. Debian GNU/Linux, which includes the GNU OS tools and Linux kernel, is a popular and influential...

 to the superh

SuperH

SuperH is a 32-bit reduced instruction set computer instruction set architecture developed by Hitachi. It is implemented by microcontrollers and microprocessors for embedded systems....

platform. Currently he is maintaining his own branch (linux-hpc) on kernel.org. He is ranked within the top 100(87th)hobbyist linux kernel programmers according to statistics on remword.com (based on signed-off-by patches since 2005).

Linux Kernel Commitments

• Maintainer for HP Jornada 600-series 2005- (/arch/sh/boards/hp6xx/)
• Maintainer for HP Jornada 700-series 2006- (/arch/arm/mach-sa1100/)
• Maintainer for Epson S1D13xxx framebuffer driver 2008- (/drivers/video/)
• Co-Maintainer for Nec Mobilepro 900/c 2008- (/arch/arm/mach-pxa/)
• Maintainer of linux-hpc.git kernel source repository (on kernel.org)

Other

• Founder of JLime project 2003-
• Developer for Openembedded 2006-
• Founder of Ampleblood Diagnostic Assistant 2009-

Sources

http://www.kernel.org

http://git.kernel.org/?p=linux/kernel/git/kristoffer/linux-hpc.git;a=summary

http://www.jlime.com

http://www.openembedded.org

https://www.ohloh.net/accounts/Kristoffer

http://www.remword.com/kps_result/all_sof.html

http://www.ampleblood.com