函数逻辑报告

函数名称：memory_read_from_buffer - copy data from the buffer*@to: the kernel space buffer to read to*@count: the maximum number of bytes to read*@ppos: the current position in the buffer*@from: the buffer to read from*@available: the size of the buffer* The

函数原型：ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, const void *from, size_t available)

返回类型：ssize_t

参数：