有关字符设备驱动一个例子： app-mem.c：应用程序 memdev.c：字符设备驱动 makefile：用于2.6内核编译 makefile_2.4：用于2.4内核编译 Makefile-arm：用于arm内核编译-An example of the character device driver: app-mem.c: application memdev.c: character device driver makefile: for the 2.6 kernel c