Function tcflow

components/libc/posix/io/termios/termios.c:217–220

* @brief Controls the terminal flow control. * @param fd File descriptor of the terminal device. * @param action Action to be taken for flow control (TCOOFF, TCOON, TCIOFF, or TCION). * @return Upon successful completion, returns 0; otherwise, returns -1 and sets errno to indicate the error. * * @note This function controls the flow of data on the terminal device specified by the fi

 *          If the ioctl operation fails, errno is set to indicate the error, and the function returns -1.
 */
int tcflow(int fd, int action)
{
    return ioctl(fd, TCXONC, (void*)(rt_ubase_t)action);
}

/**
 * @brief   Waits until all output written to the terminal is transmitted.