/* * rt_com usage example * * Michael Barabanov <baraban@fsmlabs.com>, 1999 *  (C) FSMLabs  1999. baraban@fsmlabs.com *  Released under the GNU GENERAL PUBLIC LICENSE Version 2, June 1991 *  Any use of this code must include this notice. * */#include <rtl.h>#include <rtl_fifo.h>#include <time.h>#include <pthread.h>#include <asm/io.h>#include "rt_com.h"int period=100000000;int fifo_size=4000;pthread_t thread;int fd_fifo;void *thread_code(void *t) {	pthread_make_periodic_np (thread, gethrtime(), period);	do {		int n;		char buf[210];		pthread_wait_np();		n = rt_com_read(0, buf, sizeof(buf));		if (n > 0) {			buf[n] = 0;			rtl_printf("%s", buf);		}		rt_com_write(0, "test\n", 5);	} while (1);	return 0;}int init_module(void){	pthread_attr_t attr;	struct sched_param sched_param;	int thread_status;	rt_com_setup(0, 38400, RT_COM_PARITY_NONE, 1, 8);	pthread_attr_init (&attr);	pthread_attr_setcpu_np(&attr, 0);	sched_param.sched_priority = 1;	pthread_attr_setschedparam (&attr, &sched_param);	thread_status = pthread_create (&thread,  &attr, thread_code, (void *)1);	if (thread_status != 0) {		printk("failed to create RT-thread\n");		return -1;	} else {		printk("created RT-thread\n");	}	return 0;}void cleanup_module(void){        printk ("Removing module on CPU %d\n", rtl_getcpuid());	pthread_delete_np (thread);	rt_com_setup(0, -1, 0, 0, 0);}