Memory Map Entry Points

Memory Map Entry Points

A user process requests memory mapping by calling the system function mmap(). When the mapped object is a character device special file, the kernel calls the pfxmmap() or pfxmap() entry to validate and complete the mapping. To understand these entry points, you must understand the mmap() system function.

Concepts and Use of mmap()
Entry Point map()
Entry Point mmap()
Entry Point unmap()