coolsnowwolf/immortalwrt
Oct 2024 – Feb 2025
5 Months active
Languages Used
CMakefileDTSDevice Treedts
Technical Skills
Device DriversEmbedded SystemsFirmware DevelopmentLinux KernelBuild SystemsDevice Tree
Lech Perczak
PROFILE
Lech Perczak
Contributed to the coolsnowwolf/immortalwrt repository by developing and refining embedded Linux features for network devices, focusing on device tree configuration, kernel modules, and firmware development using C and DTS. Delivered wireless performance optimizations, expanded hardware support, and improved reliability for devices such as ZTE MF286, Teltonika RUT230, and Ruckus R500. Addressed system stability by correcting memory addressing, clock frequencies, and LED handling, while enhancing maintainability through modular device tree changes. Prioritized robust build systems and network performance optimization, reducing support overhead and streamlining production deployments. Demonstrated depth in embedded systems development and Linux kernel integration across diverse hardware platforms.
Overall Statistics
Feature vs Bugs
62%Features
Repository Contributions
22Total
Bugs
5
Commits
22
Features
8
Lines of code
506
Activity Months5
Work History
February 2025
6 Commits • 1 Features
Feb 1, 2025February 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.
6 Commits • 1 Features
Feb 1, 2025February 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.
February 2025
January 2025
4 Commits • 2 Features
Jan 1, 2025January 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.
January 2025
4 Commits • 2 Features
Jan 1, 2025January 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, 2024December 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.
6 Commits • 3 Features
Dec 1, 2024December 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.
December 2024
November 2024
5 Commits • 2 Features
Nov 1, 2024Monthly 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.
November 2024
5 Commits • 2 Features
Nov 1, 2024Monthly 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, 2024October 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.
1 Commits
Oct 1, 2024October 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.
October 2024
Activity
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Quality Metrics
Correctness93.2%
Maintainability92.8%
Architecture93.2%
Performance91.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CDTSDevice TreeMakefiledts
Technical Skills
Build SystemsDevice ConfigurationDevice DriversDevice TreeDevice Tree ConfigurationEmbedded SystemsEmbedded Systems DevelopmentFirmware DevelopmentKernel DevelopmentKernel ModulesLinux KernelLinux Kernel DevelopmentLinux Kernel ModulesNetwork Device ConfigurationNetwork Performance Optimization
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