MTP: Partial implementation of the GetObjectPropList command

In this initial implementation we only support fetching one property at a time.
Support depth = 0 (single object) or depth = 1 (all objects in a directory)
Reimplemented GetObjectPropValue on top of GetObjectPropList, since the former
is a special case of the latter.

Change-Id: Ia76ee61741d6ee3902b5c5d9fc094cf86dfaf650
Signed-off-by: Mike Lockwood <lockwood@google.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/media/mtp/MtpDatabase.h b/media/mtp/MtpDatabase.h
index c8cb016c8101..fafd22112d90 100644
--- a/media/mtp/MtpDatabase.h
+++ b/media/mtp/MtpDatabase.h
@@ -75,6 +75,12 @@ public:
 
     virtual MtpResponseCode         resetDeviceProperty(MtpDeviceProperty property) = 0;
 
+    virtual MtpResponseCode         getObjectPropertyList(MtpObjectHandle handle,
+                                            MtpObjectFormat format,
+                                            MtpObjectProperty property,
+                                            int groupCode, int depth,
+                                            MtpDataPacket& packet) = 0;
+
     virtual MtpResponseCode         getObjectInfo(MtpObjectHandle handle,
                                             MtpDataPacket& packet) = 0;