CONFIG_OF 宏解释

关于Linux内核中CONFIG_OF宏，OF是Open Firmware的缩写。

Open Firmware. This was invented long time ago when Apple was producing laptops based on PowerPC CPUs. Openfirmware provides a good description of the devices connected to the platform. In Linux kernel the part that works with device data is called Device Tree (DT). More details in theUsage model.

见：http://stackoverflow.com/questions/27978709/whats-the-config-of-in-linux