1 files changed, 32 insertions, 0 deletions
diff --git a/doc/DETAILS b/doc/DETAILS
index 883fe039e..2c61d2c97 100644
--- a/doc/DETAILS
+++ b/doc/DETAILS
@@ -1138,6 +1138,38 @@ pkd:0:1024:B665B1435F4C2 .... FF26ABB:
 *** BEGIN_STREAM, END_STREAM
     Used to issued by the experimental pipemode.
 
+** Inter-component codes
+   Status codes are also used between the components of the GnuPG
+   system via the Assuan S lines.  Some of them are documented here:
+
+*** PUBKEY_INFO <n> <ubid>
+    The type of the public key in the following D-lines or
+    communicated via a pipe.  <n> is the value of =enum pubkey_types=
+    and <ubid> the Unique Blob ID (UBID) which is the fingerprint of
+    the primary key truncated to 20 octets and formatted in hex.  Note
+    that the keyboxd SEARCH command can be used to lookup the public
+    key using the <ubid> prefixed with a caret (^).
+
+*** KEYPAIRINFO <grip> <keyref> [<usage>] [<keytime>]
+
+    This status is emitted by scdaemon and gpg-agent to convey brief
+    information about keypairs stored on tokens.  <grip> is the
+    hexified keygrip of the key or, if no key is stored, an "X".
+    <keyref> is the ID of a card's key; for example "OPENPGP.2" for
+    the second key slot of an OpenPGP card.  <usage> is optional and
+    returns technically possible key usages, this is a string of
+    single letters describing the usage ('c' for certify, 'e' for
+    encryption, 's' for signing, 'a' for authentication). A '-' can be
+    used to tell that usage flags are not conveyed.  <keytime> is used
+    by OpenPGP cards for the stored key creation time.  A '-' means no
+    info available.  The format is the usual ISO string are a number
+    with the seconds since Epoch.
+*** MANUFACTORER <n> [<string>]
+
+    This status returns the Manufactorer ID as the unsigned number N.
+    For OpenPGP this is weel defined; for other cards this is 0.  The
+    name of the manufacturer is also given as <string>; spaces are not
+    escaped.  For PKCS#15 cards <string> is TokenInfo.manufactorerID.
 
 * Format of the --attribute-fd output