.. _naming_conventions:

Naming conventions ##################

This section describes the naming conventions adopted by the Zephyr Project, for each individual programming language or tool used in it.

C Code naming conventions

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The naming conventions in this section apply to C source and header files, as stated in each individual sub-section.

Public symbol prefixes

All :term:public APIs <public API> introduced to Zephyr must be prefixed according to the area or subsystem they belong to. Examples of area or subsystem prefixes are provided below for reference.

• k_ for the kernel
• sys_ for system-wide code and features
• net_ for the networking subsystem
• bt_ for the Bluetooth subsystem
• i2c_ for the I2C controller subsystem