experiment

include/utils.h

@@ -1,6 +1,7 @@
 #ifndef LINUXSMARTIE_UTILS_H
 #define LINUXSMARTIE_UTILS_H
 
+#include <stdint.h>
 #include <sys/types.h>
 
 #if __STDC_VERSION__ >= 202000L
@@ -21,6 +22,18 @@
 #define P_BYTES(bytes, start) pretty_bytes((bytes), (start), (char[16]){0}, 16)
 #define P_NUM(num) pretty_num((num), (char[16]){0}, 16)
 
+typedef enum {
+	SENSOR_I16,
+} sensor_type_t;
+
+typedef struct {
+	char path[256];
+	int fd;
+	void* value;
+	uint32_t divider;
+	sensor_type_t type;
+} sensor_t;
+
 int get_instance_lock();
 
 void timespec_add_ms(struct timespec *ts, uint16_t ms);
@@ -45,4 +58,10 @@ void fast_read_num_i16(const char *dir, const char *file, char *buf, int16_t *re
 
 void fast_read_num_f(const char *dir, const char *file, char *buf, float *result, uint32_t divider);
 
+void open_sensor(sensor_t* s, const char* dir, const char *file, void* value, uint32_t divider, sensor_type_t type);
+
+void fast_read_sensor_i16(const sensor_t *s);
+
+void close_sensor(const sensor_t* s);
+
 #endif