Since we neglect to document several members of ChardevBackendKind,
their description in the QEMU QMP Reference manual is "Not
documented".  Fix that, and improve the existing member documentation.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240911112545.2248881-2-armbru@redhat.com>
---
 qapi/char.json   | 44 ++++++++++++++++++++++++++++----------------
 qapi/pragma.json |  1 -
 2 files changed, 28 insertions(+), 17 deletions(-)

diff --git a/qapi/char.json b/qapi/char.json
index ef58445cee..0d6de1ee35 100644
--- a/qapi/char.json
+++ b/qapi/char.json
@@ -434,37 +434,49 @@
 ##
 # @ChardevBackendKind:
 #
-# @pipe: Since 1.5
+# @file: regular files
 #
-# @udp: Since 1.5
+# @serial: serial host device
 #
-# @mux: Since 1.5
+# @parallel: parallel host device
 #
-# @msmouse: Since 1.5
+# @pipe: pipes (since 1.5)
 #
-# @wctablet: Since 2.9
+# @socket: stream socket
 #
-# @braille: Since 1.5
+# @udp: datagram socket (since 1.5)
 #
-# @testdev: Since 2.2
+# @pty: pseudo-terminal
 #
-# @stdio: Since 1.5
+# @null: provides no input, throws away output
 #
-# @console: Since 1.5
+# @mux: (since 1.5)
 #
-# @spicevmc: Since 1.5
+# @msmouse: emulated Microsoft serial mouse (since 1.5)
 #
-# @spiceport: Since 1.5
+# @wctablet: emulated Wacom Penpartner serial tablet (since 2.9)
 #
-# @qemu-vdagent: Since 6.1
+# @braille: Baum Braille device (since 1.5)
 #
-# @dbus: Since 7.0
+# @testdev: device for test-suite control (since 2.2)
 #
-# @vc: v1.5
+# @stdio: standard I/O (since 1.5)
 #
-# @ringbuf: Since 1.6
+# @console: Windows console (since 1.5)
 #
-# @memory: Since 1.5
+# @spicevmc: spice vm channel (since 1.5)
+#
+# @spiceport: Spice port channel (since 1.5)
+#
+# @qemu-vdagent: Spice vdagent (since 6.1)
+#
+# @dbus: D-Bus channel (since 7.0)
+#
+# @vc: virtual console (since 1.5)
+#
+# @ringbuf: memory ring buffer (since 1.6)
+#
+# @memory: synonym for @ringbuf (since 1.5)
 #
 # Features:
 #
diff --git a/qapi/pragma.json b/qapi/pragma.json
index fad3a31628..d5ae397293 100644
--- a/qapi/pragma.json
+++ b/qapi/pragma.json
@@ -46,7 +46,6 @@
         'BlockdevSnapshotSyncWrapper',
         'BlockdevSnapshotWrapper',
         'BlockdevVmdkAdapterType',
-        'ChardevBackendKind',
         'CxlCorErrorType',
         'DisplayProtocol',
         'DriveBackupWrapper',
-- 
2.46.0