doc/settings-storage: Document LastUsed Endpoints entry

Document the use of LastUsed entry inside Endpoints group.

Change-Id: I8f6dbc064b34a81914d13e6c820902c32da93368
Signed-off-by: himanshu <h.himanshu@samsung.com>

diff --git a/doc/settings-storage.txt b/doc/settings-storage.txt
index 5cfed46..1f3b559 100755 (executable)
--- a/doc/settings-storage.txt
+++ b/doc/settings-storage.txt
@@ -179,7 +179,9 @@ In "Attributes" group GATT database is stored using attribute handle as key
 all data required to re-create given attribute. ":" is used to separate fields.
 
 In "Endpoints" group A2DP remote endpoints are stored using the seid as key
-(hexadecimal format) and ":" is used to separate fields.
+(hexadecimal format) and ":" is used to separate fields. It may also contain
+an entry which key is set to "LastUsed" which represented the last endpoint
+used.
 
 [General] group contains:
 
@@ -230,6 +232,9 @@ Sample Attributes section:
                                        followed by codec type and its
                                        capabilies as hexadecimal encoded
                                        string.
+       LastUsed:<xx>           String  LastUsed has one field which is the
+                                       endpoint ID as hexadecimal encoded
+                                       string.
 
 Info file format
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