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Jonas Jelonek

PROFILE

Jonas Jelonek

Over 21 months, contributed to OpenWrt and related repositories by developing and maintaining embedded Linux networking features, device drivers, and build system improvements. Delivered hardware enablement for Realtek and Mediatek platforms, expanded PoE and SerDes support, and modernized kernel drivers using C, Device Tree, and Makefile scripting. Focused on upstream alignment, codebase refactoring, and robust device-tree integration to streamline hardware onboarding and reduce maintenance. Enhanced reliability through targeted bug fixes, build hygiene, and automation, while enabling new devices such as Zyxel and UniFi switches. Work in DragonBluep/openwrt emphasized scalable, maintainable solutions for evolving embedded networking hardware.

Overall Statistics

Feature vs Bugs

78%Features

Repository Contributions

317Total
Bugs
29
Commits
317
Features
100
Lines of code
79,063
Activity Months21

Work History

July 2026

28 Commits • 9 Features

Jul 1, 2026

July 2026 monthly summary for DragonBluep/openwrt focusing on Realtek RTL93xx/RTL930x driver improvements, enhanced calibration, and codebase modernization. Delivered per-port Realtek PSE sysfs detection control patch, comprehensive RTL930x calibration and DCVS improvements, CMU page and TX config refactor for cleaner, more reliable hardware config, SGMII media classification and TX tuning gating to reduce misconfigurations, and RTL93xx terminology modernization including a pse-pi macro. Note: UniFi USW Pro Max 24 PoE patch initially added and later reverted due to partition layout issues. Also fixed Plasma Cloud PSX28/ESX28 fan control path handling to restore proper operation. These changes broaden device support, improve reliability, and enhance maintainability, delivering business value through safer backports, clearer abstractions, and more robust calibration routines.

June 2026

49 Commits • 13 Features

Jun 1, 2026

June 2026: Implemented core Realtek SerDes/PCS improvements across OpenWrt ports, delivering hardware-support upgrades, stability enhancements, and upstream-ready refactors. Notable work includes enabling RTL931x XSGMII driver support with media/config fixes, addressing MIPS reboot reliability, unifying and hardening the SerDes/PCS setup flow with activation/post_config hooks, expanding hardware support to UniFi USW Pro XG 8 PoE, and upgrading build tooling to align with upstream standards. These efforts increase device support, reliability during reboot/shutdown, and maintainability for long-term partnerships with upstream projects.

May 2026

40 Commits • 10 Features

May 1, 2026

May 2026 performance summary: Delivered substantial Realtek RTL-based enhancements across DragonBluep/openwrt and namiltd/openwrt, focusing on PoE readiness, SerDes/PCS stability, and future-proofing the codebase. Key outcomes include driver-level PoE support and Realtek PSE MCU integration across multiple switches, an upgrade of firmware utilities with XikeStor SKS7300 image generation, and a modernization drive via fwnode_pcs migration. In addition, comprehensive DTS/LED/hardware refinements for Zyxel XS1930 and UniFi USW lines reduced field issues and improved power management. Core fixes and hardening included SerDes chattiness reduction, deterministic bring-up sequencing, per-DT link counting, and PSE/PD error handling improvements. These changes collectively boost device reliability, reduce support costs, and set the stage for scalable hardware expansion and upstream alignment.

April 2026

39 Commits • 11 Features

Apr 1, 2026

April 2026 focused on advancing Realtek RTL93xx support across OpenWrt, driving unified SerDes/MAC configuration, broader hardware coverage, and improved build reliability. Major work spanned unified USXGMII across RTL930x/RTL931x, a registry-driven MAC mode infrastructure via regmap, DTS standardization for RTL93xx devices, expanded Zyxel/XMG/XGS device support (including Zyxel XMG1915-10E/10EP web upgrade and Zyxel XGS1930-28HP), and targeted build-system hardening to ensure clean, per-device builds and reliable upgrades.

March 2026

2 Commits • 2 Features

Mar 1, 2026

March 2026 monthly summary for DragonBluep/openwrt. Focused on feature delivery and kernel maintenance to improve hardware support, maintainability, and build stability across targets. No major bugs fixed this month; primary work centered on backporting driver support and refreshing patches to stay aligned with upstream changes and downstream hardware needs.

February 2026

7 Commits • 3 Features

Feb 1, 2026

February 2026 monthly summary for DragonBluep/openwrt focusing on RTL931x/Realtek PCS improvements, CMU/serdes setup optimization, and maintainability enhancements. Delivered initialization efficiency, corrected initialization behavior, reduced log noise, and streamlined configuration sequencing; also dropped support for Realtek PCS chip type 1 to focus on supported devices. The work demonstrates improved startup performance, stability, and code maintainability with attention to business impact.

January 2026

40 Commits • 17 Features

Jan 1, 2026

January 2026 monthly summary for DragonBluep/openwrt focusing on delivering robust SerDes-driven networking improvements, reliability, and maintainability for Realtek PHY/PCS/MDIO work. Key efforts spanned RTL930x SerDes HW mode integration, RTL838x PCS SerDes hardware-mode adoption, RTL931x PCS enhancements, and enhanced MDIO/PHY detection, plus architecture refinements to reduce reconfiguration overhead. These changes improve performance in USXGMII paths, interoperability, and long-term maintainability across the Realtek stack.

December 2025

38 Commits • 9 Features

Dec 1, 2025

December 2025 monthly summary for DragonBluep/openwrt focusing on Realtek SerDes framework and RTL931x integration. Delivered a scalable SerDes design, consolidated hardware-mode configuration, and reliability improvements across Realtek PCS implementations, enabling broader device support and reduced maintenance.

November 2025

13 Commits • 3 Features

Nov 1, 2025

Month: 2025-11 | DragonBluep/openwrt – Focused on reliability, maintainability, and cross-device SerDes support; delivered cross-family SerDes modernization, SFP enhancements, and USXGMII stabilization.

October 2025

13 Commits • 1 Features

Oct 1, 2025

October 2025 monthly summary for namiltd/openwrt focused on Realtek SerDes integration for RTL931x/RTL930x within the PCS pathway, with a major migration of SerDes setup logic from PHY drivers to PCS, introduction of helper APIs and regmap-based access, and a critical SFP GPIO fix to restore module compatibility.

September 2025

11 Commits • 4 Features

Sep 1, 2025

September 2025 monthly summary focusing on key accomplishments across two repositories: namiltd/openwrt and linux-riscv/linux. Highlights include delivery of upstream-aligned I2C work, improvements to device identification, and extended RTL support with significant refactors that reduce maintenance burden and position the codebase for future hardware.

August 2025

5 Commits • 1 Features

Aug 1, 2025

August 2025 monthly summary: Delivered targeted value across three repositories by focusing on footprint reduction, build compatibility, and hardware safety. Key feature delivered: LZMA-based image compression for TP-Link TL-ST1008F v2.0, reducing flash usage for initramfs and sysupgrade images. Major bugs fixed: GCC15 build issue for i2csfp resolved by updating the Makefile to reflect the latest source date, version, and mirror hash; RTL9300 I2C driver stability improvements including channel bound checks, data-length validation, and removal of SMBus Quick operation to prevent data corruption. Overall impact: smaller flash footprint, more reliable builds with current toolchains, and safer hardware interactions across edge devices. Technologies/skills demonstrated: LZMA compression, embedded Linux build systems and Makefile maintenance, I2C/SMBus driver debugging, and validation practices that reduce risk and improve maintainability.

July 2025

3 Commits • 2 Features

Jul 1, 2025

July 2025 monthly summary highlighting delivery of two upstream-aligned improvements across OpenWrt repositories, with a focus on dependency hygiene, maintainability, and release governance. Delivered targeted feature upgrades and upstream migration that reduce maintenance burden while improving security and compatibility.

June 2025

8 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary focusing on Realtek-related kernel modernization, I2C driver integration, DSA stability, and build compatibility improvements across OpenWrt repositories. Delivered tangible features, fixed critical bugs, and advanced hardware support with measurable business value.

May 2025

4 Commits • 2 Features

May 1, 2025

May 2025 highlights include hardware expansion, build stability improvements, and package refreshes across the OpenWrt ecosystem. Delivered OpenWrt hardware support for TL-ST1008F v2.0, fixed GCC 15 related build regressions in the WireGuard and power supply subsystems, and updated the Eza package to the latest release to ensure current builds and metadata alignment. These efforts increase platform reach, reduce build and maintenance risk, and keep core tooling current for downstream users.

April 2025

3 Commits • 3 Features

Apr 1, 2025

Month: 2025-04 — Delivered key package updates and streamlined the build system for OpenWrt packages. Focused on aligning with upstream releases, enhancing security posture, and reducing maintenance overhead, which improves reliability and time-to-release.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025: Key release of the EZA package to version 0.20.20 in openwrt/packages. The update includes Makefile adjustments, tarball hash update, and changelog entries, enabling users and downstreams to upgrade with confidence. The release was implemented with a single traceable commit (edf836529190387ec465fcbaa5d388261ce60cd2).

January 2025

3 Commits • 2 Features

Jan 1, 2025

January 2025 monthly summary focusing on delivering targeted feature updates and UI enhancements across OpenWrt packages and LUCI, with emphasis on security, compatibility, and improved visibility of high‑speed interfaces. The work aligns with release hygiene and maintainability goals, enabling smoother upgrades and clearer operational metrics.

December 2024

4 Commits • 2 Features

Dec 1, 2024

Monthly summary for 2024-12 focusing on delivering core updates and hardware support with clear business impact. Key achievements and outcomes are summarized below.

November 2024

4 Commits • 2 Features

Nov 1, 2024

November 2024 performance summary: Delivered two high-impact OpenWrt improvements across two repositories. First, Croc dependency upgraded to 10.1.0 in openwrt/packages by updating the Makefile and source hash to pull in the latest features and bug fixes (commit a122ec8f6ecd92a8e512217b1032bf86dbdbc6c1). Second, network interface naming alignment across Banana Pi BPI-R3 and BPI-R4 in namiltd/openwrt, including extending the openwrt,netdev-name rename mechanism for Mediatek Filogic subtargets to improve consistency (commits 84fc59c0d5285a0a0fe50e3cb2a85f6224362c55; cd8dcfef378044a1687adfa3738f01f9a9622baf; d4d6c48b6e055dca5480d49d44503d1175539485). These changes enhance device labeling consistency, reduce post-deploy configuration overhead, and improve cross-device automation. Demonstrated skills include packaging automation, Makefile/source integrity, and Mediatek Filogic target customization.

October 2024

2 Commits • 1 Features

Oct 1, 2024

October 2024 monthly summary focused on stabilizing the package environment in openwrt/packages through targeted dependency updates and tight change-tracking. Delivered critical updates to upstream packages to keep deployments secure, compatible, and reproducible.

Activity

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Quality Metrics

Correctness95.0%
Maintainability90.8%
Architecture91.8%
Performance89.4%
AI Usage23.6%

Skills & Technologies

Programming Languages

CDTSDTSIDevice TreeJavaScriptMakefileShellYAMLdtsyaml

Technical Skills

Build System ManagementBuild SystemsCC ProgrammingC programmingDevice Driver DevelopmentDevice DriversDevice TreeDevice Tree ConfigurationDocumentationDriver DevelopmentEmbedded LinuxEmbedded SystemsEmbedded Systems DevelopmentFirmware Development

Repositories Contributed To

7 repos

Overview of all repositories you've contributed to across your timeline

DragonBluep/openwrt

Nov 2025 Jul 2026
9 Months active

Languages Used

CDTSMakefileShelldts

Technical Skills

C programmingLinux kernel developmentdevice driver developmentdevice tree configurationdriver developmentembedded systems

namiltd/openwrt

Nov 2024 Jun 2026
11 Months active

Languages Used

CMakefileShellDevice TreeYAMLDTSIdts

Technical Skills

Device TreeEmbedded SystemsLinux KernelNetwork Interface ManagementDevice DriversKernel Development

openwrt/packages

Oct 2024 Aug 2025
10 Months active

Languages Used

Makefile

Technical Skills

Package ManagementBuild System Managementbuild systemspackage management

openwrt/openwrt

Apr 2026 Apr 2026
1 Month active

Languages Used

CMakefile

Technical Skills

C programmingbuild system configurationbuild system integrationdevice driver developmentdriver developmentembedded systems

linux-riscv/linux

Sep 2025 Sep 2025
1 Month active

Languages Used

Cyaml

Technical Skills

Device DriversDevice TreeDocumentationDriver DevelopmentEmbedded SystemsI2C

geerlingguy/linux

Aug 2025 Aug 2025
1 Month active

Languages Used

C

Technical Skills

C programmingI2C protocoldriver developmentembedded systems

openwrt/luci

Jan 2025 Jan 2025
1 Month active

Languages Used

JavaScript

Technical Skills

Front-end DevelopmentJavaScript