Home on Javier Tia's Blog

Six XFS shutdowns, six falsified hypotheses, and a filesystem that took itself down for lack of space on a half-empty disk.

Every embedded team ends up writing the same Makefile around kas and repo. bakar replaces it: pre-flight checks before the build starts, curated build tuning applied at run time without touching your YAML, structured per-run observability, vendor manifest…

What I gathered from watching two FOSDEM 2026 talks on the Cyber Resilience Act: one from German IT lawyers explaining what manufacturers should do, one from the EU Commission and BSI explaining what the regulation actually requires - and what it does not…

Intel ships per-sensor calibration data in proprietary AIQB binaries alongside their Windows camera drivers.

The handful of local.conf knobs that make Yocto builds usable, and the failure modes each one buys you in return.

One month after being laid off: navigating the first weeks - leaning on the people in your corner, moving your body, defining the search before executing on it.

The CRA evidence layer nobody wants to assemble, and how shipcheck drafts your Annex VII technical file from a Yocto build.

After 3.5 years at Linaro I was laid off in March 2026.

How I got MediaTek MT7927 WiFi 7 working on Linux by reverse-engineering the MT7927 initialization, DMA ring layout, and firmware quirks - extending the existing mt7925e kernel driver with 18 patches.

MT7927 Bluetooth driver patches merged into bluetooth-next - the full journey from DKMS package to upstream acceptance, including 5 revision cycles, automated review tools, and community testing across 16+ boards.

How to build a bootable Windows 11 USB drive entirely from Linux using QEMU, UEFI Secure Boot, and qemu-img - for when your hardware vendor only ships Windows firmware tools.

How to transition an Intel IPU6 webcam (OV2740) from the out-of-tree ipu6-drivers stack to mainline kernel + libcamera on Linux 6.19, with fixes for the SoftISP AGC and AWB color pipeline.

I spent a day applying the wrong kernel patches to the wrong driver for the wrong chip before figuring out that MT7927 WiFi doesn't actually work on Linux yet.

A technical deep-dive into enabling MT7927 Bluetooth support on Linux through kernel patches, firmware extraction, and DKMS packaging - from initial investigation to working AUR package.