How to set baud rate to 307200 on Linux?

Question

Basically I\'m using the following code to set the baud rate of a serial port:

struct termios options;
tcgetattr(fd, &options);
cfsetispeed(&options,         


        

Answer 1

I accomplished this using termios2 and ioctl() commands.

struct termios2 options;
ioctl(fd, TCGETS2, &options);
options.c_cflag &= ~CBAUD;    //Remove current BAUD rate
options.c_cflag |= BOTHER;    //Allow custom BAUD rate using int input
options.c_ispeed = 307200;    //Set the input BAUD rate
options.c_ospeed = 307200;    //Set the output BAUD rate
ioctl(fd, TCSETS2, &options);

After that, you should be able to query the port settings and see your custom BAUD rate, as well as the other settings (possible with stty commands).