diff --git a/Source/Core/Core/IOS/STM/STM.h b/Source/Core/Core/IOS/STM/STM.h
index e5eb750cd8..ae2068b792 100644
--- a/Source/Core/Core/IOS/STM/STM.h
+++ b/Source/Core/Core/IOS/STM/STM.h
@@ -15,20 +15,23 @@ namespace IOS::HLE
 {
 enum
 {
+  // /dev/stm/eventhook
   IOCTL_STM_EVENTHOOK = 0x1000,
-  IOCTL_STM_GET_IDLEMODE = 0x3001,
-  IOCTL_STM_RELEASE_EH = 0x3002,
+
+  // /dev/stm/immediate
   IOCTL_STM_HOTRESET = 0x2001,
   IOCTL_STM_HOTRESET_FOR_PD = 0x2002,
   IOCTL_STM_SHUTDOWN = 0x2003,
   IOCTL_STM_IDLE = 0x2004,
   IOCTL_STM_WAKEUP = 0x2005,
+  IOCTL_STM_GET_IDLEMODE = 0x3001,
+  IOCTL_STM_RELEASE_EH = 0x3002,
+  IOCTL_STM_READDDRREG = 0x4001,
+  IOCTL_STM_READDDRREG2 = 0x4002,
   IOCTL_STM_VIDIMMING = 0x5001,
   IOCTL_STM_LEDFLASH = 0x6001,
   IOCTL_STM_LEDMODE = 0x6002,
   IOCTL_STM_READVER = 0x7001,
-  IOCTL_STM_READDDRREG = 0x4001,
-  IOCTL_STM_READDDRREG2 = 0x4002,
 };
 
 enum