diff --git a/libctru/include/3ds/services/ptmu.h b/libctru/include/3ds/services/ptmu.h
index a5822ce..1ba4e97 100644
--- a/libctru/include/3ds/services/ptmu.h
+++ b/libctru/include/3ds/services/ptmu.h
@@ -40,3 +40,8 @@ Result PTMU_GetPedometerState(u8 *out);
  */
 Result PTMU_GetTotalStepCount(u32 *steps);
 
+/**
+ * @brief Gets whether the adapter is plugged in or not
+ * @param out Pointer to write the adapter state to.
+ */
+Result PTMU_GetAdapterState(bool *out);
diff --git a/libctru/source/services/ptmu.c b/libctru/source/services/ptmu.c
index e302e63..8db305d 100644
--- a/libctru/source/services/ptmu.c
+++ b/libctru/source/services/ptmu.c
@@ -94,3 +94,16 @@ Result PTMU_GetTotalStepCount(u32 *steps)
 	return (Result)cmdbuf[1];
 }
 
+Result PTMU_GetAdapterState(bool *out)
+{
+	Result ret=0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+	
+	cmdbuf[0] = IPC_MakeHeader(0x5,0,0); // 0x50000
+	
+	if(R_FAILED(ret = svcSendSyncRequest(ptmuHandle)))return ret;
+	
+	*out = cmdbuf[2] & 0xFF;
+	
+	return (Result)cmdbuf[1];
+}