John Stultz

about

John has been actively participating in the upstream kernel community for over twenty years. He worked on kernel enablement on (usually large) x86 systems and improving the PREEMPT_RT kernel tree. He has also contributed a fair amount of code focusing on timekeeping, and is a co-maintainer in that area. John contributed to the Project ARA effort. Today he works on upstreaming the Android kernel patches and enabling AOSP devboards and form-factor devices with mainline. He is also the current maintainer for drm_hwcomposer.

Posts

• Integrating accelerated video decoding with v4l2 in AOSP

  Tuesday, December 7, 2021

  Upstream enabled development boards are critical to the work Linaro does as they provide a platform to develop and validate new solutions, as well as allow us to demonstrate the value of those solutions to upstream maintainers, and also as a vehicle for testing to ensure external regressions are caught and quickly fixed. One area that has commonly been missing on AOSP development boards is open implementations of accelerated video decoding. In this blog, Linaro Engineer John Stultz talks about the work Linaro has done to integrate accelerated video decording with v412 in AOSP.

• DMA BUF Heap Transition in AOSP

  Tuesday, November 17, 2020

  In this article, John Stultz takes a detailed look at the DMA BUF Heaps interface that is designed to replace ION. Read about his findings here!

• Update on HiKey/HiKey960 efforts in AOSP

  Monday, April 20, 2020

  In this article, John Stultz takes a look at the HiKey/HiKey960 efforts in AOSP as HiKey gets put into retirement. Read more here!

• DragonBoard 845c in AOSP

  Monday, April 6, 2020

  In this article, John Stultz takes a detailed look at the DragonBoard 845c in AOSP (Android Open Source Project). Read about his findings here!