定义事件特性 .............................................................................................................................. 80
排队任务 .............................................................................................................................................. 83
任务队列简介 .............................................................................................................................. 83
任务队列接口 .............................................................................................................................. 83
观察任务队列 .............................................................................................................................. 84
6 驱动程序自动配置 .............................................................................................................................87
驱动程序的装入和卸载 .................................................................................................................... 87
驱动程序必需的数据结构 ............................................................................................................... 88
modlinkage 结构 ......................................................................................................................... 88
modldrv 结构 ................................................................................................................................89
dev_ops 结构 ................................................................................................................................89
cb_ops 结构 .................................................................................................................................. 90
可装入驱动程序接口 ........................................................................................................................ 91
_init() 示例 ................................................................................................................................92
_fini() 示例 ................................................................................................................................93
_info() 示例 ................................................................................................................................93
设备配置概念 ..................................................................................................................................... 94
设备实例和实例编号 ................................................................................................................. 94
次要节点和次要设备号 ............................................................................................................ 95
probe() 入口点 ........................................................................................................................... 95
attach() 入口点 ......................................................................................................................... 97
detach() 入口点 ....................................................................................................................... 102
getinfo() 入口点 ..................................................................................................................... 103
使用设备 ID ...................................................................................................................................... 105
注册设备 ID ............................................................................................................................... 105
注销设备 ID ............................................................................................................................... 106
7 设备访问：程控 I/O ..........................................................................................................................107
设备内存 ............................................................................................................................................ 107
管理设备和主机字节序之间的差别 .................................................................................... 108
管理数据排序要求 ................................................................................................................... 108
ddi_device_acc_attr 结构 .................................................................................................... 108
映射设备内存 ............................................................................................................................ 109
映射设置示例 ............................................................................................................................ 109
目录
5
