diff --git a/source/os/release/include/board_devices.h b/source/os/release/include/board_devices.h
index ec42636..657b7b3 100644
--- a/source/os/release/include/board_devices.h
+++ b/source/os/release/include/board_devices.h
@@ -11,6 +11,8 @@ extern const struct driver pwm_4;
 extern const struct driver pwm_3;
 extern const struct driver pwm_2;
 extern const struct driver pwm_1;
+extern const struct driver pwm5_c2;
+extern const struct driver pwm2_c4;
 extern const struct driver uart_1;
 
 #endif /* BOARD_DEVICES_H */
diff --git a/source/os/release/include/driver.h b/source/os/release/include/driver.h
index e91349d..6ce5b5d 100644
--- a/source/os/release/include/driver.h
+++ b/source/os/release/include/driver.h
@@ -8,7 +8,9 @@
 #ifndef SOURCE_FIRMWARE_KERNEL_DRIVER_INCLUDE_DRIVER_H_
 #define SOURCE_FIRMWARE_KERNEL_DRIVER_INCLUDE_DRIVER_H_
 
-#define IOCTL_PWM_SET_DUTY_CYCLE	0
+#define IOCTL_PWM_SET_DUTY_CYCLE		0
+#define IOCTL_PWM_GET_PERIOD_NS			1
+#define IOCTL_PWM_GET_PULSE_WIDTH_NS	2
 
 enum driver_type {
 	DRIVER_TYPE_ADC,
diff --git a/source/os/release/libkosmos-arm-stm32f4-discovery-0.1.4.a b/source/os/release/libkosmos-arm-stm32f4-discovery-0.1.5.250.a
similarity index 89%
rename from source/os/release/libkosmos-arm-stm32f4-discovery-0.1.4.a
rename to source/os/release/libkosmos-arm-stm32f4-discovery-0.1.5.250.a
index ec2ac10..c1d60ea 100644
Binary files a/source/os/release/libkosmos-arm-stm32f4-discovery-0.1.4.a and b/source/os/release/libkosmos-arm-stm32f4-discovery-0.1.5.250.a differ
diff --git a/source/os/release/libkosmos-arm-stm32f4-discovery.a b/source/os/release/libkosmos-arm-stm32f4-discovery.a
index b1368da..f542b68 120000
--- a/source/os/release/libkosmos-arm-stm32f4-discovery.a
+++ b/source/os/release/libkosmos-arm-stm32f4-discovery.a
@@ -1 +1 @@
-libkosmos-arm-stm32f4-discovery-0.1.4.a
\ No newline at end of file
+libkosmos-arm-stm32f4-discovery-0.1.5.250.a
\ No newline at end of file