Samsung/TizenRT
Nov 2024 – Aug 2025
5 Months active
Languages Used
C
Technical Skills
Driver DevelopmentEmbedded SystemsTestingKernel DevelopmentHardware InteractionMIPI DSI
anjana
PROFILE
Anjana
Anjana Ch developed and enhanced embedded display and input drivers for the Samsung/TizenRT repository, focusing on LCD and touchscreen reliability, testability, and power management. She implemented features such as LCD touch input testing, touch sampling rate measurement, and robust LCD information retrieval, using C and kernel-level driver development. Her work addressed power sequencing issues, improved boot behavior by refining MIPI DSI initialization, and consolidated silent reboot handling to prevent unintended wakeups. By refactoring test frameworks and strengthening CLI support, Anjana improved automated validation and error handling, demonstrating depth in embedded systems, hardware interaction, and maintainable driver code quality.
Overall Statistics
Feature vs Bugs
57%Features
Repository Contributions
8Total
Bugs
3
Commits
8
Features
4
Lines of code
476
Activity Months5
Your Network
227 people
Work History
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
Loading activity data...
Quality Metrics
Correctness83.8%
Maintainability82.6%
Architecture82.6%
Performance71.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
C ProgrammingDriver DevelopmentEmbedded SystemsHardware InteractionKernel DevelopmentMIPI DSIPower ManagementTesting
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline