Samsung/TizenRT
Nov 2024 – Feb 2026
7 Months active
Languages Used
CPythonC++Markdown
Technical Skills
Driver DevelopmentEmbedded SystemsTestingKernel DevelopmentHardware InteractionMIPI DSI
anjana
PROFILE
Anjana
Anjana Ch delivered robust embedded systems features and reliability improvements for the Samsung/TizenRT repository, focusing on LCD driver development, touch input validation, and C++17 enablement. She implemented touch input testing and sampling rate measurement for display drivers using C and C++, enhancing test coverage and debugging capabilities. Her work addressed power sequencing and initialization issues, improving device stability during boot and shutdown. Anjana also extended log parsing with Python scripting to resolve symbol information from incomplete logs, streamlining debugging. By contributing to libcxx with LLVM, she enabled modern C++ features and documentation, supporting maintainable, high-quality code across TizenRT components.
Overall Statistics
Feature vs Bugs
70%Features
Repository Contributions
12Total
Bugs
3
Commits
12
Features
7
Lines of code
718
Activity Months7
Your Network
239 peopleWork History
February 2026
3 Commits • 2 Features
Feb 1, 2026February 2026: Delivered foundational C++17 support in TizenRT's libcxx via LLVM libc++, including std::is_invocable and improved emplace semantics, along with comprehensive C++ enablement guidance. Implemented memory allocation error handling fixes (THROW_ALLOC) and added documentation to help developers enable and use modern C++ features. The work reduces onboarding time and enables broader adoption of modern C++ in customer projects, increasing code quality and maintainability across TizenRT components.
3 Commits • 2 Features
Feb 1, 2026February 2026: Delivered foundational C++17 support in TizenRT's libcxx via LLVM libc++, including std::is_invocable and improved emplace semantics, along with comprehensive C++ enablement guidance. Implemented memory allocation error handling fixes (THROW_ALLOC) and added documentation to help developers enable and use modern C++ features. The work reduces onboarding time and enables broader adoption of modern C++ in customer projects, increasing code quality and maintainability across TizenRT components.
February 2026
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026: Strengthened log parsing and symbol resolution in Samsung/TizenRT to handle scenarios with missing binary information. Implemented retrieval of common and app symbols from ELF files when logs are incomplete, improving debuggability and time-to-resolution for issues spanning kernel and app components.
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026: Strengthened log parsing and symbol resolution in Samsung/TizenRT to handle scenarios with missing binary information. Implemented retrieval of common and app symbols from ELF files when logs are incomplete, improving debuggability and time-to-resolution for issues spanning kernel and app components.
August 2025
1 Commits • 1 Features
Aug 1, 20252025-08 monthly summary for Samsung/TizenRT: Delivered enhanced LCD test capabilities and CLI support improvements, strengthening LCD subsystem testing, reliability, and maintainability. Implemented a comprehensive LCD_GETINFO test to retrieve width, height, and DPI and added robust error handling for ioctl calls, safer string formatting, and a refactor of the main function to support new commands 'lcdinfo' and 'basic' tests for automated validation.
1 Commits • 1 Features
Aug 1, 20252025-08 monthly summary for Samsung/TizenRT: Delivered enhanced LCD test capabilities and CLI support improvements, strengthening LCD subsystem testing, reliability, and maintainability. Implemented a comprehensive LCD_GETINFO test to retrieve width, height, and DPI and added robust error handling for ioctl calls, safer string formatting, and a refactor of the main function to support new commands 'lcdinfo' and 'basic' tests for automated validation.
August 2025
March 2025
3 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for Samsung/TizenRT: Key front-end initialization and power-down improvements delivered to enhance boot UX and reliability. Implemented MIPI LCD initialization in command mode on power-on, keeping the screen black until buffer data is ready and switching to video mode when data is provided. Hardened silent reboot path by disabling touchscreen input and turning off the LCD backlight to prevent unintended wakeups, consolidated across input and LCD drivers. These changes reduce startup artifacts, stabilize boot behavior, and improve power resilience, aligning with business goals of reliable, responsive devices.
March 2025
3 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for Samsung/TizenRT: Key front-end initialization and power-down improvements delivered to enhance boot UX and reliability. Implemented MIPI LCD initialization in command mode on power-on, keeping the screen black until buffer data is ready and switching to video mode when data is provided. Hardened silent reboot path by disabling touchscreen input and turning off the LCD backlight to prevent unintended wakeups, consolidated across input and LCD drivers. These changes reduce startup artifacts, stabilize boot behavior, and improve power resilience, aligning with business goals of reliable, responsive devices.
February 2025
1 Commits
Feb 1, 2025February 2025 monthly summary focused on reliability improvements in LCD power sequencing for RTL8730E on the Samsung/TizenRT project. Addressed a critical power-on/power-off sequence issue impacting LCD initialization and shutdown, improving stability across power transitions and reducing risk of startup failures.
1 Commits
Feb 1, 2025February 2025 monthly summary focused on reliability improvements in LCD power sequencing for RTL8730E on the Samsung/TizenRT project. Addressed a critical power-on/power-off sequence issue impacting LCD initialization and shutdown, improving stability across power transitions and reducing risk of startup failures.
February 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for Samsung/TizenRT focusing on targeted driver instrumentation and debugging enhancements. Delivered IST415 touch sampling rate measurement feature for the IST415 driver, enabling accurate measurement of touch sampling rate with a configurable option, interrupt counting during touch events, and logging of sampling rate for debugging. This work provides visibility into touch timing, supports performance profiling, and informs power and responsiveness optimizations.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for Samsung/TizenRT focusing on targeted driver instrumentation and debugging enhancements. Delivered IST415 touch sampling rate measurement feature for the IST415 driver, enabling accurate measurement of touch sampling rate with a configurable option, interrupt counting during touch events, and logging of sampling rate for debugging. This work provides visibility into touch timing, supports performance profiling, and informs power and responsiveness optimizations.
November 2024
2 Commits • 1 Features
Nov 1, 2024In November 2024, the Samsung/TizenRT development effort focused on expanding automated validation for touch-enabled displays and stabilizing the build process. Key feature delivery included adding LCD Touch Input Testing to the example_lcd test, enabling detection and reporting of touch coordinates, touch IDs, and touch events (press, move, release) for both single- and multi-touch scenarios within the LCD test framework. This enhances test coverage for user interactions and reduces regression risk in display-related features. A UI build warning was resolved by forward-declaring the lcd_dev_s struct in lcd.h, addressing incomplete type warnings and improving CI/build stability. Together, these efforts improve product reliability, shorten feedback loops, and demonstrate proficiency in embedded UI testing, C code quality, and build hygiene.
2 Commits • 1 Features
Nov 1, 2024In November 2024, the Samsung/TizenRT development effort focused on expanding automated validation for touch-enabled displays and stabilizing the build process. Key feature delivery included adding LCD Touch Input Testing to the example_lcd test, enabling detection and reporting of touch coordinates, touch IDs, and touch events (press, move, release) for both single- and multi-touch scenarios within the LCD test framework. This enhances test coverage for user interactions and reduces regression risk in display-related features. A UI build warning was resolved by forward-declaring the lcd_dev_s struct in lcd.h, addressing incomplete type warnings and improving CI/build stability. Together, these efforts improve product reliability, shorten feedback loops, and demonstrate proficiency in embedded UI testing, C code quality, and build hygiene.
November 2024
Activity
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Quality Metrics
Correctness85.8%
Maintainability85.0%
Architecture85.0%
Performance77.6%
AI Usage21.6%
Skills & Technologies
Programming Languages
CC++MarkdownPython
Technical Skills
C ProgrammingC++C++ developmentDriver DevelopmentEmbedded SystemsHardware InteractionKernel DevelopmentLLVMLibrary developmentMIPI DSIMemory managementPower ManagementPython scriptingTestingdebugging
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