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hwmon.c

/*
 * hwmon.c - Hardware monitoring functions for X-Sys
 * Copyright (C) 2005 Tony Vroon
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include "xsys.h"

int hwmon_chip_present()
{
      FILE *fp = fopen("/sys/class/hwmon/hwmon0/device/name", "r");
      if(fp != NULL) {
            fclose(fp);
            return 1;
            }
      return 0;
}

void get_hwmon_chip_name(char *name)
{
      char *position, buffer[bsize];
      FILE *fp = fopen("/sys/class/hwmon/hwmon0/device/name", "r");
      if(fp != NULL) {
            if(fgets(buffer, bsize, fp) != NULL) {
                  position = strstr(buffer, "\n");
                        *(position) = '\0';
                  snprintf(name, sizeof(name), "%s", buffer);
            }
            fclose(fp);
      }
}

void get_hwmon_temp(unsigned int *value, unsigned int *sensor)
{
      char buffer[bsize];
      snprintf(buffer, bsize, "/sys/class/hwmon/hwmon0/device/temp%i_input", *sensor);
      FILE *fp = fopen(buffer, "r");
      if(fp != NULL) {
            if(fgets(buffer, bsize, fp) != NULL)
                  *value = atoi(buffer);
            fclose(fp);
      }
}

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