?? rectangle.c
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/* * Written by Der Herr Hofrat, der.herr@hofr.at * (C) 2002 FSMLabs * License: GPL Version 2 */#include <linux/module.h>#include <linux/kernel.h>#include <rtl_time.h>#include <rtl_sched.h>#include <asm/io.h>#include <time.h>#include "common.h"int period=1000000;int periodic_mode=0;int nibl=0xff; /* this nibl is 8bit :) - special nibl for rtlinux */pthread_t thread;void *bit_toggle(void *t){ pthread_make_periodic_np(thread, gethrtime(), period); while (1){ outb(nibl,LPT); nibl = ~nibl; pthread_wait_np(); }}int init_module(void){ pthread_attr_t attr; struct sched_param sched_param; pthread_attr_init (&attr); sched_param.sched_priority = 1; pthread_attr_setschedparam (&attr, &sched_param); pthread_create (&thread, &attr, bit_toggle, (void *)0); return 0;}void cleanup_module(void){ pthread_delete_np (thread);}
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