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-rw-r--r--include/android/storage_manager.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/android/storage_manager.h b/include/android/storage_manager.h
index 7f2ee08d62..270570e0df 100644
--- a/include/android/storage_manager.h
+++ b/include/android/storage_manager.h
@@ -124,6 +124,12 @@ typedef void (*AStorageManager_obbCallbackFunc)(const char* filename, const int3
/**
* Attempts to mount an OBB file. This is an asynchronous operation.
+ *
+ * Since API level 33, this function can only be used to mount unencrypted OBBs,
+ * i.e. the {@code key} parameter must be {@code null} or an empty string. Note
+ * that even before API level 33, mounting encrypted OBBs didn't work on many
+ * Android device implementations. Applications should not assume any particular
+ * behavior when {@code key} is nonempty.
*/
void AStorageManager_mountObb(AStorageManager* mgr, const char* filename, const char* key,
AStorageManager_obbCallbackFunc cb, void* data);