yocto-public/1-concepts/class.md

Classes

Classes provides functions and tools that can be used in recipes. To use a class, you must make the recipe inherit from the class.

Classes files have the .bbclass extension

Example: module class

See: $POKY/meta/classes/module.bbclass

This class provides functions to build and install kernel modules

It defines these functions

• module_do_compile
• module_do_install
• From module-base
  • do_make_scripts
• From kernel-module-split
  • pkg_postinst_modules
  • pkg_postrm_modules
  • autoload_postinst_fragment
  • do_install_append
  • split_kernel_module_packages

When writing a kernel module recipe, you have to inherit from this class using:

inherit module