qAdd fan_speed.c

.gitignore

@@ -6,3 +6,4 @@ clock
 battery
 essid
 volume
+fan_speed

Makefile

@@ -1,5 +1,5 @@
 CC      ?= gcc
-LIBS     = -lm -lasound
+LIBS     = -lm -lasound -lsensors
 CFLAGS  += -std=c99 -pedantic -Wall -Wextra -I$(PREFIX)/include
 CFLAGS  += -D_POSIX_C_SOURCE=200112L
 LDFLAGS += -L$(PREFIX)/lib

Sourcedeps

@@ -5,3 +5,4 @@ exist: exist.c
 narg: narg.c
 uq: uq.c
 volume: volume.c
+fan_speed: fan_speed.c

fan_speed.c

@@ -0,0 +1,111 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <sensors/sensors.h>
+#include <sensors/error.h>
+#include "common.h"
+
+#define INTERVAL 3
+#define FORMAT "%s %4.0f "
+
+int put_infos(char *format)
+{
+    int chip_nr = 0;
+
+    const sensors_chip_name *chip;
+
+    while ((chip = sensors_get_detected_chips(NULL, &chip_nr))) {
+
+        int i = 0;
+        const sensors_feature *feature;
+
+        while ((feature = sensors_get_features(chip, &i))) {
+
+            const sensors_subfeature *sf;
+
+            if (feature->type == SENSORS_FEATURE_FAN) {
+                double val;
+                char *label = NULL;
+
+                label = sensors_get_label(chip, feature);
+
+                sf = sensors_get_subfeature(chip, feature, 
+                        SENSORS_SUBFEATURE_FAN_FAULT);
+                if (sf && sensors_get_value(chip, sf->number, &val)) {
+                    val = -1;
+                }
+                else {
+                    sf = sensors_get_subfeature(chip, feature,
+                            SENSORS_SUBFEATURE_FAN_INPUT);
+                    if (sensors_get_value(chip, sf->number, &val)) {
+                        val = -1;
+                    }
+                }
+
+                if (strstr(format, "%s") == NULL) {
+                    printf(format, val);
+                }
+                else if (strpbrk(format, "%f") == NULL) {
+                    printf(format, label);
+                }
+                else {
+                    printf(format, label, val);
+                }
+                free(label);
+            }
+        }
+    }
+
+    printf("\n");
+    fflush(stdout);
+
+    return EXIT_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+    char *format = FORMAT;
+    int interval = INTERVAL;
+    bool snoop   = false;
+    int exit_code;
+
+    char opt;
+
+    while ((opt = getopt(argc, argv, "hsf:i:")) != -1) {
+        switch (opt) {
+            case 'h':
+                printf("fan_speed [-h|-s|-f FORMAT|-i INTERVAL]\n");
+                exit(EXIT_SUCCESS);
+                break;
+            case 's':
+                snoop = true;
+                break;
+            case 'f':
+                format = optarg;
+                break;
+            case 'i':
+                interval = atoi(optarg);
+                break;
+        }
+    }
+
+    exit_code = sensors_init(NULL);
+    if (exit_code) {
+        fprintf(stderr, "sensors_init: %s\n", sensors_strerror(exit_code));
+        return exit_code;
+    }
+
+    if (snoop) {
+        while ((exit_code = put_infos(format)) != EXIT_FAILURE) {
+            sleep(interval);
+        }
+    }
+    else {
+        exit_code = put_infos(format);
+    }
+
+    sensors_cleanup();
+    return exit_code;
+}