From 08cc34911470fbf8f96cb49258481dbb00d1128e Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Tue, 14 Mar 2023 11:25:48 +0100
Subject: [PATCH] gpg: Allow no version information of Yubikey

* g10/call-agent.c (learn_status_cb): Set is_v2 always for Yubikeys.
--

GnuPG-bug-id: 5100, 6378
Backported-from-master: 1cd615afe3010d2c3919de489d7c9a78513c8694
---
 g10/call-agent.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/g10/call-agent.c b/g10/call-agent.c
index 7e60542ef..abd6eb34d 100644
--- a/g10/call-agent.c
+++ b/g10/call-agent.c
@@ -525,7 +525,8 @@ learn_status_cb (void *opaque, const char *line)
       xfree (parm->serialno);
       parm->serialno = store_serialno (line);
       parm->is_v2 = (strlen (parm->serialno) >= 16
-                     && xtoi_2 (parm->serialno+12) >= 2 );
+                     && (xtoi_2 (parm->serialno+12) == 0 /* Yubikey */
+                         || xtoi_2 (parm->serialno+12) >= 2));
     }
   else if (keywordlen == 7 && !memcmp (keyword, "APPTYPE", keywordlen))
     {