39 lines
712 B
C
39 lines
712 B
C
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <fcntl.h>
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#include "battery.h"
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#include "common.h"
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/* config contains a path to the battery */
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int mod_battery(char *config, char *name, char *pipename) {
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struct message msg;
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strcpy(msg.name, name);
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int fd = open(pipename, O_WRONLY);
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int battery;
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int recvd;
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chdir("/sys/class/power_supply");
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chdir(config);
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for(;;) {
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battery = open("capacity", O_RDONLY);
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recvd = read(battery, msg.content, 3);
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msg.content[3] = '\0';
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if (msg.content[2] == '\n') {
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msg.content[2] = '\0';
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}
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close(battery);
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write(fd, &msg, sizeof(msg));
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sleep(30);
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}
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return 0;
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}
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