diff --git a/bin/demo.bat b/bin/demo.bat
index 825e1be..19c73c1 100644
--- a/bin/demo.bat
+++ b/bin/demo.bat
@@ -1,2 +1,2 @@
-%~dp0\ryzenadj.exe --stapm-limit=4000 --fast-limit=5000 --slow-limit=5000 --tctl-temp=90
+%~dp0\ryzenadj.exe --stapm-limit=40000 --fast-limit=45000 --slow-limit=45000 --tctl-temp=90
 pause
\ No newline at end of file
diff --git a/bin/libryzenadj.dll b/bin/libryzenadj.dll
index 90f9edf..f24c32d 100644
Binary files a/bin/libryzenadj.dll and b/bin/libryzenadj.dll differ
diff --git a/bin/libryzenadj.exp b/bin/libryzenadj.exp
index c5763ac..788cb0f 100644
Binary files a/bin/libryzenadj.exp and b/bin/libryzenadj.exp differ
diff --git a/bin/libryzenadj.lib b/bin/libryzenadj.lib
index ea81d8c..3aa28f7 100644
Binary files a/bin/libryzenadj.lib and b/bin/libryzenadj.lib differ
diff --git a/bin/ryzenadj.exe b/bin/ryzenadj.exe
index 68a256b..7c9ba49 100644
Binary files a/bin/ryzenadj.exe and b/bin/ryzenadj.exe differ
diff --git a/bin/ryzenadj.h b/bin/ryzenadj.h
new file mode 100644
index 0000000..5eb2eb1
--- /dev/null
+++ b/bin/ryzenadj.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: LGPL */
+/* Copyright (C) 2019 Jiaxun Yang <jiaxun.yang@flygoat.com> */
+/* RyzenAdj API */
+
+#ifndef RYZENADJ_H
+#define RYZENADJ_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+#include  "nb_smu_ops.h"
+
+#ifdef _WIN32
+#define EXP __declspec(dllexport)
+#define CALL __stdcall
+#else
+#define EXP
+#define CALL
+#endif
+
+#define RYZENADJ_VER 5
+
+typedef struct {
+	nb_t nb;
+	pci_obj_t pci_obj;
+	smu_t mp1_smu;
+	smu_t psmu;
+} *ryzen_access;
+
+EXP ryzen_access CALL init_ryzenadj();
+
+EXP void CALL cleanup_ryzenadj(ryzen_access ry);
+
+EXP int CALL set_stapm_limit(ryzen_access, uint32_t value);
+EXP int CALL set_fast_limit(ryzen_access, uint32_t value);
+EXP int CALL set_slow_limit(ryzen_access, uint32_t value);
+EXP int CALL set_slow_time(ryzen_access, uint32_t value);
+EXP int CALL set_stapm_time(ryzen_access, uint32_t value);
+EXP int CALL set_tctl_temp(ryzen_access, uint32_t value);
+EXP int CALL set_vrm_current(ryzen_access, uint32_t value);
+EXP int CALL set_vrmsoc_current(ryzen_access, uint32_t value);
+EXP int CALL set_vrmmax_current(ryzen_access, uint32_t value);
+EXP int CALL set_vrmsocmax_current(ryzen_access, uint32_t value);
+EXP int CALL set_psi0_current(ryzen_access, uint32_t value);
+EXP int CALL set_psi0soc_current(ryzen_access, uint32_t value);
+EXP int CALL set_max_gfxclk_freq(ryzen_access, uint32_t value);
+EXP int CALL set_min_gfxclk_freq(ryzen_access, uint32_t value);
+EXP int CALL set_max_socclk_freq(ryzen_access, uint32_t value);
+EXP int CALL set_min_socclk_freq(ryzen_access, uint32_t value);
+EXP int CALL set_max_fclk_freq(ryzen_access, uint32_t value);
+EXP int CALL set_min_fclk_freq(ryzen_access, uint32_t value);
+EXP int CALL set_max_vcn(ryzen_access, uint32_t value);
+EXP int CALL set_min_vcn(ryzen_access, uint32_t value);
+EXP int CALL set_max_lclk(ryzen_access, uint32_t value);
+EXP int CALL set_min_lclk(ryzen_access, uint32_t value);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif