diff --git a/src/main/iidxhook1/Module.mk b/src/main/iidxhook1/Module.mk
index 1606f6d..fcfad98 100644
--- a/src/main/iidxhook1/Module.mk
+++ b/src/main/iidxhook1/Module.mk
@@ -22,4 +22,5 @@ libs_iidxhook1      := \
 src_iidxhook1       := \
     config-iidxhook1.c \
     dllmain.c \
+    ezusb-mon.c \
     log-ezusb.c \
diff --git a/src/main/iidxhook1/ezusb-mon.c b/src/main/iidxhook1/ezusb-mon.c
new file mode 100644
index 0000000..e1e86a8
--- /dev/null
+++ b/src/main/iidxhook1/ezusb-mon.c
@@ -0,0 +1,228 @@
+#define LOG_MODULE "ezusb-mon"
+
+#include <windows.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "hook/table.h"
+
+#include "iidxhook1/ezusb-mon.h"
+
+#include "util/defs.h"
+#include "util/log.h"
+#include "util/str.h"
+
+/* ------------------------------------------------------------------------- */
+
+static int my_usbStart(int val);
+static int my_usbSecurityInit();
+static int my_usbSecuritySelectDone();
+static int my_usbGetPCBID(char* buffer);
+static int my_usbGetSecurity(char* buffer);
+static int my_usbGetSecurityKey(char* buffer);
+static int my_usbBootSecurity(
+    const char* boot_code, int seed_1, int seed_2, int seed_3);
+static int my_usbSetupSecurityComplete(int val1, int val2, int val3, int val4);
+static int my_usbMute(int val);
+static int my_usbFirmResult();
+
+static int (*real_usbStart)(int val);
+static int (*real_usbSecurityInit)();
+static int (*real_usbSecuritySelectDone)();
+static int (*real_usbGetPCBID)(char* buffer);
+static int (*real_usbGetSecurity)(char* buffer);
+static int (*real_usbGetSecurityKey)(char* buffer);
+static int (*real_usbBootSecurity)(
+    const char* boot_code, int seed_1, int seed_2, int seed_3);
+static int (*real_usbSetupSecurityComplete)(int val1, int val2, int val3, int val4);
+static int (*real_usbMute)(int val);
+static int (*real_usbFirmResult)();
+
+/* ------------------------------------------------------------------------- */
+
+static const struct hook_symbol ezusb_mon_hook_syms[] = {
+    {.name = "usbStart",
+     .patch = my_usbStart,
+     .link = (void **) &real_usbStart},
+    {.name = "usbSecurityInit",
+     .patch = my_usbSecurityInit,
+     .link = (void **) &real_usbSecurityInit},
+    {.name = "usbSecuritySelectDone",
+     .patch = my_usbSecuritySelectDone,
+     .link = (void **) &real_usbSecuritySelectDone},
+    {.name = "usbGetPCBID",
+     .patch = my_usbGetPCBID,
+     .link = (void **) &real_usbGetPCBID},
+     {.name = "usbGetSecurity",
+     .patch = my_usbGetSecurity,
+     .link = (void **) &real_usbGetSecurity},
+     {.name = "usbGetSecurity",
+     .patch = my_usbGetSecurity,
+     .link = (void **) &real_usbGetSecurity},
+     {.name = "usbGetSecurityKey",
+     .patch = my_usbGetSecurityKey,
+     .link = (void **) &real_usbGetSecurityKey},
+     {.name = "usbBootSecurity",
+     .patch = my_usbBootSecurity,
+     .link = (void **) &real_usbBootSecurity},
+     {.name = "usbSetupSecurityComplete",
+     .patch = my_usbSetupSecurityComplete,
+     .link = (void **) &real_usbSetupSecurityComplete},
+     {.name = "usbMute",
+     .patch = my_usbMute,
+     .link = (void **) &real_usbMute},
+     {.name = "usbFirmResult",
+     .patch = my_usbFirmResult,
+     .link = (void **) &real_usbFirmResult},
+};
+
+/* ------------------------------------------------------------------------- */
+
+static int my_usbStart(int val)
+{
+    int res;
+
+    log_misc("BEFORE usbStart, val %d", val);
+
+    res = real_usbStart(val);
+
+    log_misc("AFTER usbStart, res: %d", res);
+
+    return res; 
+}
+
+static int my_usbSecurityInit()
+{
+    int res;
+
+    log_misc("BEFORE usbSecurityInit");
+
+    res = real_usbSecurityInit();
+
+    log_misc("AFTER usbSecurityInit, res: %d", res);
+
+    return res;
+}
+
+static int my_usbSecuritySelectDone()
+{
+    int res;
+
+    log_misc("BEFORE usbSecuritySelectDone");
+
+    res = real_usbSecuritySelectDone();
+
+    log_misc("AFTER usbSecuritySelectDone, res: %d", res);
+
+    return res;
+}
+
+static int my_usbGetPCBID(char* buffer)
+{
+    int res;
+
+    log_misc("BEFORE usbGetPCBID, buffer %s", buffer);
+
+    res = real_usbGetPCBID(buffer);
+
+    log_misc("AFTER usbGetPCBID, res: %d, buffer %s", res, buffer);
+
+    return res;
+}
+
+static int my_usbGetSecurity(char* buffer)
+{
+    int res;
+
+    log_misc("BEFORE usbGetSecurity, buffer %s", buffer);
+
+    res = real_usbGetSecurity(buffer);
+
+    log_misc("AFTER usbGetSecurity, res: %d, buffer %s", res, buffer);
+
+    return res;
+}
+
+static int my_usbGetSecurityKey(char* buffer)
+{
+    int res;
+
+    log_misc("BEFORE usbGetSecurityKey, buffer %s", buffer);
+
+    res = real_usbGetSecurityKey(buffer);
+
+    log_misc("AFTER usbGetSecurityKey, res: %d, buffer %s", res, buffer);
+
+    return res;
+}
+
+static int my_usbBootSecurity(
+        const char* boot_code, int seed_1, int seed_2, int seed_3)
+{
+    int res;
+
+    log_misc(
+        "BEFORE usbBootSecurity, boot_code %s, seed_1 %d, seed_2 %d, seed_3 %d",
+        boot_code, seed_1, seed_2, seed_3);
+
+    res = real_usbBootSecurity(boot_code, seed_1, seed_2, seed_3);
+
+    log_misc("AFTER usbBootSecurity, res: %d", res);
+
+    return res;
+}
+
+static int my_usbSetupSecurityComplete(int val1, int val2, int val3, int val4)
+{
+    int res;
+
+    log_misc(
+        "BEFORE usbSetupSecurityComplete, val1 %d, val2 %d, val3 %d, val4 %d",
+        val1, val2, val3, val4);
+
+    res = real_usbSetupSecurityComplete(val1, val2, val3, val4);
+
+    log_misc("AFTER usbSetupSecurityComplete, res: %d", res);
+
+    return res;
+}
+
+static int my_usbMute(int val)
+{
+    int res;
+
+    log_misc("BEFORE usbMute, val %d", val);
+
+    res = real_usbMute(val);
+
+    log_misc("AFTER usbMute, res: %d", res);
+
+    return res;
+}
+
+static int my_usbFirmResult()
+{
+    int res;
+
+    res = real_usbFirmResult();
+
+    // Avoid log flood with constant polling of this API function as long as it
+    // keeps returning 96
+    if (res != 96) {
+        log_misc("AFTER usbFirmResult, res (!= 96): %d", res);
+    }
+
+    return res;
+}
+
+/* ------------------------------------------------------------------------- */
+
+void ezusb_mon_hook_init(void)
+{
+    hook_table_apply(
+        NULL, "ezusb.dll", ezusb_mon_hook_syms, lengthof(ezusb_mon_hook_syms));
+
+    log_info("Inserted ezusb mon hooks");
+}
diff --git a/src/main/iidxhook1/ezusb-mon.h b/src/main/iidxhook1/ezusb-mon.h
new file mode 100644
index 0000000..e0568ec
--- /dev/null
+++ b/src/main/iidxhook1/ezusb-mon.h
@@ -0,0 +1,12 @@
+#ifndef IIDXHOOK_EZUSB_MON_H
+#define IIDXHOOK_EZUSB_MON_H
+
+/**
+ * Monitor and log call traces of ezusb.dll calls.
+ * 
+ * This only works on 9th and 10th Style that have the ezusb.dll linked
+ * dynamically. Any later version has the library linked staticly
+ */
+void ezusb_mon_hook_init(void);
+
+#endif