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Lech Perczak

PROFILE

Lech Perczak

Over the course of 13 months, this developer expanded hardware support and improved reliability across the DragonBluep/openwrt and coolsnowwolf/immortalwrt repositories. They delivered device-tree driven LED and switch features, enhanced link-state reporting, and integrated new platforms such as Dragino MS14, LPS8, and Ruckus R500. Their work included kernel module development, network performance optimization, and device driver fixes, often using C, Device Tree, and Makefile. By addressing both feature delivery and bug fixes—such as MAC address corrections and wireless calibration—they enabled broader device compatibility, streamlined onboarding, and improved maintainability for embedded Linux systems in networking and IoT environments.

Overall Statistics

Feature vs Bugs

74%Features

Repository Contributions

39Total
Bugs
6
Commits
39
Features
17
Lines of code
1,606
Activity Months13

Work History

May 2026

3 Commits • 1 Features

May 1, 2026

2026-05 Monthly summary: Expanded OpenWrt DragonBluep/openwrt hardware coverage with Dragino MS14 and LPS8 on the ath79 target, including device-tree configuration, LED mappings, and installation flow; fixed Meraki MR18 MAC offset after the NVMEM switch (0x66); results include broader device support, streamlined onboarding for Dragino devices, and improved MAC reliability across platforms. Commits: 5f73c4d0990094e55f3a93b0bd6413903345b2cd; 4cd60fe167a3e06abd80bde100bbefe33f551455; b9cbc0846a93aa443d66fe5ebb7c3b61e040a2f6.

February 2025

6 Commits • 1 Features

Feb 1, 2025

February 2025 monthly work summary focusing on key deliverables for ImmortalWrt: optimized wireless performance, reliability improvements, and clock stability across devices. Key outcomes include ~50% RX throughput improvement on ZTE MF281; robust AR8327 LED and fixed-link fixes across TP-Link devices; corrected RB911G reference clock to 25MHz, reducing drift and improving system stability. These work items reduce support risk, enhance user experience, and strengthen maintainability of the ath79/board-layer changes.

January 2025

4 Commits • 2 Features

Jan 1, 2025

January 2025 highlights for coolsnowwolf/immortalwrt focusing on business value, reliability, and hardware coverage. Implemented power-management improvements for Teltonika RUT230 by moving USB VBUS regulator control to userspace and enabling cleaner modem shutdowns. Fixed boot reliability by correcting the failsafe path when SIM tray is absent. Expanded enterprise hardware support with Ruckus R500 AP by adding device tree, network config, and associated data refinements. Stabilized Meraki MR18 initramfs builds by correcting memory addresses for LZMA_TEXT_START.

December 2024

6 Commits • 3 Features

Dec 1, 2024

December 2024 monthly summary for coolsnowwolf/immortalwrt focusing on Teltonika RUT230 modem support, LED status improvements, and cross-model compatibility. Delivered features and reliability improvements across the RUT230/RUT240 family, with targeted kernel/module adjustments to broaden device compatibility and reduce post-deploy support. All work was aligned with image builds to streamline production deployments and reduce manual configuration.

November 2024

5 Commits • 2 Features

Nov 1, 2024

Monthly work summary for 2024-11, repository coolsnowwolf/immortalwrt. Focused on improving initramfs handling, expanding device support, firmware updates, and performance optimizations to enhance hardware compatibility, upgrade reliability, and user experience.

October 2024

1 Commits

Oct 1, 2024

October 2024: Focused on stabilizing the immortalwrt radio stack. Delivered a critical 5GHz radio pre-calibration data sizing fix for the QCA9886 variant used in ZTE MF286, enhancing calibration reliability and preventing 5GHz load failures. No new end-user features were released this month; the emphasis was on robustness, compatibility, and maintainability to support fleet stability and reduced support demand.

December 2023

1 Commits • 1 Features

Dec 1, 2023

December 2023: Delivered a kernel-level MMIO-based multiplexer driver packaged as a module to enable video multiplexing on i.MX7 SoCs, with backend integration for video-mux in the DragonBluep/openwrt project. This expands hardware support and enables flexible video routing for i.MX7-based platforms, strengthening product viability and future scalability.

November 2023

5 Commits • 2 Features

Nov 1, 2023

November 2023: Key features delivered in DragonBluep/openwrt include Mikrotik RouterBOARD 2011-UiAS-2HnD support and a camera support stack for i.MX7-based boards (PICO-PI-IMX7D). Mikrotik support adds device-tree configurations, GPIO handling, and network interface setup to enable onboarding of this hardware. The camera stack consolidates i.MX7/IMX8 camera support, packaging modules for the i.MX7 CSI driver, video mux, and OV5645 camera driver, with device-tree integration and ustreamer-based streaming to enable remote camera access. These contributions improve platform coverage, facilitate hardware partnerships, and provide a repeatable, maintainable approach to hardware support in OpenWrt.

February 2023

1 Commits • 1 Features

Feb 1, 2023

February 2023 monthly summary for DragonBluep/openwrt: Delivered initial TP-Link TL-WR1043ND LED switch support in the ath79 target, enabling LED-based status indicators for v2/v3 devices. This work lays groundwork for further per-port LED features and streamlined hardware UX.

September 2022

1 Commits • 1 Features

Sep 1, 2022

2022-09 monthly summary for DragonBluep/openwrt focusing on feature delivery and network automation improvements. Delivered hardware-specific link state reporting for Eth1 on Ruckus ZF7372, enabling netifd and hotplug events to improve network management and DHCP client control. Extended link state reporting to the Fast Ethernet port via the built-in switch once ZF7372 support was merged, ensuring consistent event generation across ports. This work demonstrates proactive hardware support integration, upstream alignment, and automation capabilities for OpenWrt on ath79 devices.

July 2022

1 Commits • 1 Features

Jul 1, 2022

Month: 2022-07 — Focused OpenWrt feature work for DragonBluep/openwrt centered on improving interface visibility and link-state reporting for a Mikrotik RBmAP-2nD. Delivered a device-specific enhancement that enables swphy1 for ETH2 link-state reporting by adding the swphy1 node in the qca953x.dtsi and attaching it to ETH1 as PHY. The swphy1 capability is enabled only for the RBmAP-2nD to minimize risk on other devices. This work improves monitoring accuracy and network reliability for the access point, aiding troubleshooting and SLA adherence.

May 2022

2 Commits • 1 Features

May 1, 2022

May 2022 monthly summary for DragonBluep/openwrt focusing on built-in switch improvements that enhance link state reporting and fixed-link handling for specific SoCs. Implemented device tree enhancements and built-in switch integration to ensure accurate link state reporting to userspace, with cleanup of fixed-link usage where appropriate.

September 2021

3 Commits • 1 Features

Sep 1, 2021

September 2021 monthly summary for DragonBluep/openwrt: Delivered device-tree driven LED bindings for the ar8327 switch and TP-Link LED configurations (WDR4300 and Archer C7). This feature enables LED behavior controlled via device-tree, improving compatibility for devices migrating from older targets and reducing manual configuration, while establishing a foundation for broader LED management in ath79 targets.

Activity

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Quality Metrics

Correctness95.2%
Maintainability92.8%
Architecture93.0%
Performance91.2%
AI Usage20.0%

Skills & Technologies

Programming Languages

CDTSDevice TreeMakefiledts

Technical Skills

Build SystemsDevice ConfigurationDevice DriversDevice TreeDevice Tree ConfigurationEmbedded SystemsEmbedded Systems DevelopmentFirmware DevelopmentKernel DevelopmentKernel ModulesLinuxLinux KernelLinux Kernel DevelopmentLinux Kernel ModulesLinux kernel development

Repositories Contributed To

2 repos

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

coolsnowwolf/immortalwrt

Oct 2024 Feb 2025
5 Months active

Languages Used

CMakefileDTSDevice Treedts

Technical Skills

Device DriversEmbedded SystemsFirmware DevelopmentLinux KernelBuild SystemsDevice Tree

DragonBluep/openwrt

Sep 2021 May 2026
8 Months active

Languages Used

CDTSdtsMakefile

Technical Skills

Linux kernel developmentdevice driver developmentdevice tree configurationembedded systemskernel developmentdevice tree