函数逻辑报告

函数名称：hwlat_read - Wrapper read function for reading both window and width*@filp: The active open file structure*@ubuf: The userspace provided buffer to read value into*@cnt: The maximum number of bytes to read*@ppos: The current "file" position* This function

函数原型：static ssize_t hwlat_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos)

返回类型：ssize_t

参数：