Comprehensive guides, specifications, and resources for integrating and using YAFFS
New to YAFFS? Start here
What is YAFFS, who should use it, and why. High-level introduction to the filesystem and its benefits.
Read More →Get YAFFS running in 10 minutes. Basic setup and configuration for common platforms.
Read More →How to configure YAFFS for your hardware, performance requirements, and reliability needs.
Read More →Understand YAFFS internals and design
Deep dive into YAFFS architecture, data structures, log-structured design, and algorithms.
Read More →Technical specification for YAFFS2, designed for large-page NAND flash with improved performance.
Read More →The original 2002 specification for YAFFS. Historical reference and foundation for YAFFS2.
Read More →On-flash data structures, chunk format, tags, object representation, and metadata organization.
Read More →How YAFFS ensures data integrity
Design features for reliability, testing methodology, and power-fail testing approach. This is how we prove YAFFS works.
Read More →How YAFFS handles unexpected power loss, checkpoint system, and recovery mechanisms.
Read More →Understanding flash failure modes (read disturb, write disturb, bit rot) and how YAFFS handles them.
Read More →How to use the YAFFS test suite, including power-fail testing and validation tools.
Read More →Platform-specific integration instructions
Integrating YAFFS into Linux kernel, building, mounting, and configuration.
Read More →VxWorks-specific integration guide, drivers, and configuration options.
Read More →Using YAFFS on bare metal (no OS) or with custom RTOSes via the Direct Interface.
Read More →How to port YAFFS to a new platform, OS abstraction layer, driver requirements.
Read More →Integrating YAFFS with FreeRTOS, ThreadX, or other real-time operating systems.
Read More →Writing flash drivers for YAFFS, hardware abstraction layer, and interface requirements.
Read More →Optimize YAFFS for your application
Performance tuning, memory optimization, and configuration parameters for different use cases.
Read More →Complete reference of all YAFFS configuration options and their effects.
Read More →Tips and strategies for optimizing boot time, write speed, and RAM usage.
Read More →Is YAFFS right for your project?
Considerations when selecting a flash file system: reliability, performance, maturity, support.
Read More →Detailed comparison of YAFFS and JFFS2: architecture, performance, reliability, use cases.
Read More →Understanding the trade-offs between NAND and NOR flash for your application.
Read More →Understanding YAFFS licenses
YAFFS is available under GNU GPL v2. Understand the terms and obligations.
Read GPL v2 →Common questions about commercial licensing, pricing, and what you get.
Read More →Example of a commercial license agreement showing typical terms and conditions.
View Sample →How YAFFS licensing interacts with other software in your system.
Read More →Historical documents and development notes
Historical development notes and design decisions during YAFFS creation.
Read More →PDF slides from Charles Manning's presentation at Consumer Electronics Linux Forum 2007.
Download PDF →Video introduction to YAFFS, what it is, and why you might want to use it.
Watch Video →Video tutorial on setting up your Linux build environment for YAFFS.
Watch Video →Step-by-step video guide to building and integrating YAFFS into Linux kernel.
Watch Video →