diff --git a/log.capnp b/log.capnp
index 46aa4fed5a7e5b..2843563f32d241 100644
--- a/log.capnp
+++ b/log.capnp
@@ -307,7 +307,7 @@ struct HealthData {
   gmlanSendErrs @9 :UInt32;
   hwType @10 :HwType;
   fanSpeedRpm @11 :UInt16;
-  usbPower @12 :Bool;
+  usbPowerMode @12 :UsbPowerMode;
 
   enum HwType {
     unknown @0;
@@ -317,6 +317,12 @@ struct HealthData {
     pedal @4;
     uno @5;
   }
+
+  enum UsbPowerMode {
+    cdp @0;
+    dcp @1;
+    client @2;
+  }
 }
 
 struct LiveUI {