建立内核 API man 手册 - 曲径通幽论坛

make installmandocs

这条命令在内核源码根目录下执行。编译安装完后大约 100M 多。比如看一个注销中断注册函数的相关说明：

man free_irq

FREE_IRQ(9)                Public Functions Provided               FREE_IRQ(9)

NAME
       free_irq - free an interrupt allocated with request_irq

SYNOPSIS
       void free_irq(unsigned int irq, void * dev_id);

ARGUMENTS
       irq
           Interrupt line to free

       dev_id
           Device identity to free
.... ....