The copy_from_user function copies a block of data from user space into a kernel buffer.
copy _ from_user函数将数据块从用户空间复制到内核缓冲区。
The data block stored in the first buffer is transferred to the second buffer.
存储在第一个缓冲区的数据块传输到第二个缓冲区。
The data block stored in the first buffer is transferred to the second buffer.
存储在第一个缓冲区的数据块传输到第二个缓冲区。
应用推荐