Posts

A step-by-step guide to enabling the SPI interface and configuring Yocto recipes for E-Paper displays

A step-by-step guide to configuring Yocto recipes and hardware setup for the GT911 touch controller

A guide to creating custom image recipes and distribution configurations in your own Yocto layer, eliminating the need for manual local.conf edits

How Linux DRM shares buffers between processes and devices with PRIME and dma-buf: handle to fd export, fd to handle import, the dma_buf_ops table, and a dumb buffer plus PRIME example.

How Linux DRM manages GPU buffers with GEM: drm_gem_object, per-file handles, dumb buffer creation and the mmap fake offset path with page faults in Linux v6.19.

The code path of open() and ioctl() in Linux DRM v6.19: drm_stub_open, drm_file_alloc, drm_ioctl dispatch and permission checks, plus a libdrm probe example.

A guide to flashing the compiled LineageOS 14.1 ROM and recovery image to the Samsung Galaxy Note 8.0 (n5110).

A guide to configuring a Docker build environment, syncing repositories, and compiling a custom ROM for the n5110

The format attribute specifies that a function takes printf, scanf, strftime or strfmon style arguments which should be type-checked against a format string.

You can use the built-in function __builtin_choose_expr to evaluate code depending on the value of a constant expression. This built-in function returns exp1 if const_exp, which is an integer constant expression, is nonzero. Otherwise it returns exp2.

The alloca() function allocates size bytes of space in the stack frame of the caller. This temporary space is automatically freed when the function that called alloca() returns to its caller.

A user-focused guide to the model files in ComfyUI: what Checkpoint, LoRA, VAE, text encoder, ControlNet and upscale models are, how base, fine-tuned, merged and distilled models differ, and which model family fits which job.

Build a Computer Use Agent (CUA) with Browser-Use and Playwright via CDP integration. Covers vision-based navigation, structured Pydantic extraction, Agent vs Actor pattern selection, and a real-world Airbnb price comparison workflow.

Microsoft Agent Framework (MAF) core concepts — Agents, Threads, Middleware, Memory, Observability — and advanced workflow patterns including Sequential, Concurrent, Handoff orchestration, Middleware injection, and Human-in-the-Loop with code examples.