Posts

How Linux DRM comes up: drm_core_init registers major number 226, and a driver such as vkms creates its /dev/dri nodes through drm_dev_init and drm_dev_register in Linux v6.19.

An overview of the Linux Direct Rendering Manager (DRM): why it exists, the user and kernel stack, the /dev/dri device nodes, and the core structures drm_driver, drm_device and drm_file in Linux v6.19.

Understanding and using the $RANDOM internal variable in Bash, including its open-source implementation