#include <sys/types.h>
-void get_ibm_acpi_fan(struct text_object *, char *, int);
+int get_ibm_acpi_fan(struct text_object *, char *, int);
int get_ibm_acpi_temps(void);
void get_ibm_acpi_volume(struct text_object *, char *, int);
void get_ibm_acpi_brightness(struct text_object *, char *, int);