diff --git a/headers/private/device/power_managment.h b/headers/private/device/power_managment.h
index 1fad929c98..7964a27240 100644
--- a/headers/private/device/power_managment.h
+++ b/headers/private/device/power_managment.h
@@ -14,19 +14,6 @@ enum {
 	// ioctl response with kMagicFreqID
 	IDENTIFY_DEVICE = B_DEVICE_OP_CODES_END + 20001,
 
-	// CPU Frequence:
-	// get a list of freq_info, the list is terminated with a element with
-	// frequency = 0
-	GET_CPU_FREQ_STATES = B_DEVICE_OP_CODES_END + 20005,
-	// get and set a freq_info
-	GET_CURENT_CPU_FREQ_STATE,
-	SET_CPU_FREQ_STATE,
-	// start watching for frequency changes, ioctl blocks until the frequency
-	// has changed
-	WATCH_CPU_FREQ,
-	// stop all watching ioctl, ioctl return B_ERROR
-	STOP_WATCHING_CPU_FREQ,
-
 	GET_BATTERY_INFO,
 	GET_EXTENDED_BATTERY_INFO,
 	WATCH_BATTERY,
@@ -34,22 +21,6 @@ enum {
 };
 
 
-// CPU Frequence:
-// magic id returned by IDENTIFY_DEVICE
-const uint32 kMagicFreqID = 48921;
-
-
-#define MAX_CPU_FREQUENCY_STATES 10
-
-
-typedef struct {
-	uint16			frequency;	// [Mhz]
-	uint16			volts;
-	uint16			id;
-	int				power;
-} freq_info;
-
-
 // ACPI Battery:
 // magic id returned by IDENTIFY_DEVICE
 const uint32 kMagicACPIBatteryID = 17822;