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-rw-r--r--include/hooks.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/hooks.h b/include/hooks.h
index e30c420fbb..5c699f9555 100644
--- a/include/hooks.h
+++ b/include/hooks.h
@@ -216,6 +216,8 @@ enum hook_type {
/*
* USB PD cc connection event.
+ *
+ * CC lines and VBus are stable when this hook is called.
*/
HOOK_USB_PD_CONNECT,
};