函数原型: ssize_t (*write) (struct file *,char __user *,size_t count,loff_t*) ssize_t (*read) (struct file *,char __user *,size_t,loff_t*) 描术:向设备发送或接收数据。返回正值表示写入或是读取到的字节数。 参数……
分类目录:过时技术文章
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