我有一个大问题.目前我正在通过以下钩子访问串口:

I have a big problem. At present I am accessing a serial port via the following hooks:

然后我使用以下代码块从中读取

then I read from it using the following chunk of code

问题是在我阅读之前，我需要检测是否有任何缓冲区溢出.在串行端口级别和内部 tty 翻转缓冲区.

the problem is that before I read, I need to detect if there were any buffer overruns. Both at the serial port level and the internal tty flip buffers.

我们尝试了 cat/proc/tty/driver/serial 但它似乎没有列出溢出(见下面的输出)

We tried cat /proc/tty/driver/serial but it doesn’t seem to list the overruns (see output below)

根据内核源码，你应该使用TIOCGICOUNT ioctl.第三个 ioctl 参数应该是指向以下结构的指针，在 中定义:

According to the kernel sources, you should use the TIOCGICOUNT ioctl. The third ioctl argument should be a pointer to the following struct, defined in :

我不知道是否每个驱动程序都检测到所有情况.

I don’t know if every driver detect all conditions however.

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