diff --git a/cable.hpp b/cable.hpp
index 5a41d4e..79a4d2e 100644
--- a/cable.hpp
+++ b/cable.hpp
@@ -18,6 +18,9 @@
 
 #include <ipmid/api.h>
 
+#include <ipmid/api-types.hpp>
+#include <vector>
+
 namespace google
 {
 namespace ipmi
@@ -25,15 +28,14 @@
 
 struct CableReply
 {
-    uint8_t subcommand;
     uint8_t value;
 } __attribute__((packed));
 
 //
 // Handle the cablecheck.  Sys must supply which ethernet device they're
 // interested in.
-ipmi_ret_t cableCheck(const uint8_t* reqBuf, uint8_t* replyBuf, size_t* dataLen,
-                      const HandlerInterface* handler);
+Resp cableCheck(const std::vector<std::uint8_t>& data,
+                const HandlerInterface* handler);
 
 } // namespace ipmi
 } // namespace google