谁知道cfmakeraw函数有什么作用？就是设置串口属性对吧？我想问的是设置后是什么效果？
答案:1 悬赏:20
解决时间 2021-04-08 06:26
- 提问者网友：恋你成殇
- 2021-04-07 20:16
谁知道cfmakeraw函数有什么作用？就是设置串口属性对吧？我想问的是设置后是什么效果？
最佳答案
- 二级知识专家网友：茫然不知崩溃
- 2021-04-07 21:03
Name: cfmakeraw
Prototype: void cfmakeraw (struct termios *termios-p)
Description:
This function provides an easy way to set up *termios-p for what has traditionally been called ``raw
mode'' in BSD. This uses noncanonical input, and turns off most processing to give an unmodified
channel to the terminal.
It does exactly this:
termios-p->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|INLCR|IGNCR|ICRNL|IXON);
termios-p->c_oflag &= ~OPOST;
termios-p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
termios-p->c_cflag &= ~(CSIZE|PARENB);
termios-p->c_cflag |= CS8;
Header files:
termios.h
Prototype: void cfmakeraw (struct termios *termios-p)
Description:
This function provides an easy way to set up *termios-p for what has traditionally been called ``raw
mode'' in BSD. This uses noncanonical input, and turns off most processing to give an unmodified
channel to the terminal.
It does exactly this:
termios-p->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
|INLCR|IGNCR|ICRNL|IXON);
termios-p->c_oflag &= ~OPOST;
termios-p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
termios-p->c_cflag &= ~(CSIZE|PARENB);
termios-p->c_cflag |= CS8;
Header files:
termios.h
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