+/*!
+ * @define kOSKextReturnKCLoadFailure
+ * @abstract Loading of the System KC failed
+ */
+#define kOSKextReturnKCLoadFailure libkern_kext_err(0x1c)
+
+/*!
+ * @define kOSKextReturnKCLoadFailureSystemKC
+ * @abstract Loading of the System KC failed
+ *
+ * This a sub-code of kOSKextReturnKCLoadFailure. It can be OR'd together
+ * with: kOSKextReturnKCLoadFailureAuxKC
+ *
+ * If both the System and Aux KCs fail to load, then the error code will be:
+ * libkern_kext_err(0x1f)
+ */
+#define kOSKextReturnKCLoadFailureSystemKC libkern_kext_err(0x1d)
+
+/*!
+ * @define kOSKextReturnKCLoadFailureAuxKC
+ * @abstract Loading of the Aux KC failed
+ *
+ * This a sub-code of kOSKextReturnKCLoadFailure. It can be OR'd together
+ * with: kOSKextReturnKCLoadFailureSystemKC
+ *
+ * If both the System and Aux KCs fail to load, then the error code will be:
+ * libkern_kext_err(0x1f)
+ */
+#define kOSKextReturnKCLoadFailureAuxKC libkern_kext_err(0x1e)
+
+/* next available error is: libkern_kext_err(0x20) */
+