“Salomon saith,
There is no new thing upon the earth.
So that as Plato had an imagination,
that all knowledge was but remembrance;
so Salomon giveth his sentence,
that all novelty is but oblivion.” ― Francis Bacon, The Essays
Hello, this is a web place about myself.
While I am an embedded Linux software engineer professionally, my technical background is in Control Systems engineering and Renewable Technologies. Most of my interests and skills are in technical fields, but I am passionate about economics, entrepreneurship, history, philosophy, film and photography, design, and maybe even architecture…
Most of my work relates to Open Source software so I give talks at conferences. Check out my CV in the sidebar for more information.
This is a place where I can let all my interests, experiences, and thoughts, be laid bare.
What am I working on, publicly?#
Rockchip Neural Processing Unit (
rknpu)- OEM SDK: https://github.com/airockchip/rknn-toolkit2
- FOSS solution:
- Vizoso, T. (2025, July). Rockchip NPU update 6: We are in mainline!
- Vizoso, T. (2025, July 21).
[PATCH v9 00/10] New DRM accel driver for Rockchip's RKNN NPU. linux-rockchip. - Mohan, A. (2025, December 11). Reverse-engineering the RK3588 NPU: Hacking memory limits to run vision transformers.
Rockchip Image Signal Processing (
rkisp)- Omnivision OV5647 and OV13850 cameras
- Rockchip Auto Image Quality (
rkaiq) daemon CMOS sensor -> MIPI CSI-2/D-PHY -> RK3576 VICAP -> RKISP -> V4L2 /dev/videoX -> GStreamer v4l2src -> encoder/display
Yocto on Rockchip RK3576
JeffyCN/meta-rockchip#167: Error applying patch onto gstreamer1.0-plugins-bad-1.24.12-r0JeffyCN/meta-rockchip#159: Issue with linux-rockchip and Perl
Recent publications#
In January, 2026 I gave a talk at FOSDEM 2026 in Brussels, Belgium titled:
The presentation was part of the “AI Plumbers” devroom and it was about AI acceleration ASICs with a focus on reviewing Linux software stacks for AI/ML training and inference on various platforms.
In May, 2024 I gave a talk titled:
Production-line automation of hardware testing using Robot Framework,
at DORS/CLUC 2024, Zagreb, Croatia. It focused on my semi-automated solution for testing a custom OpenWrt-based network device after it has been manufactured.
… you can also take a look at my older publications.