File hplip-fix-driver-probing-using-avahi.patch of Package hplip

From d68d0748c4493ef3192e4f59756ece2bd2fbb004 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Tue, 19 Aug 2025 12:06:17 +0200
Subject: [PATCH] hplip: fix driver probing using avahi

- _printer._tcp doesn't work for my printer (HP Smart Tank 7300 series).
  mdns.py uses _pdl-datastream._tcp, which works.
- my printer sends `usb_MDL` property, which mdns.py accepts as alternative
  for `ty`.
- "bonjour" search protocol exists nowhere else in the code. "avahi" does.
---
 base/avahi.py | 8 ++++++--
 probe.py      | 4 ++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/base/avahi.py b/base/avahi.py
index 51795dd..b82a089 100755
--- a/base/avahi.py
+++ b/base/avahi.py
@@ -37,6 +37,9 @@ def detectNetworkDevices(ttl=4, timeout=10):
     # Obtain all the resolved services which has service type '_printer._tcp' from avahi-browse
     p = Popen(['avahi-browse', '-kprt', '_printer._tcp'], stdout=PIPE)
     output = to_string_utf8(p.communicate()[0])
+    p = Popen(['avahi-browse', '-kprt', '_pdl-datastream._tcp'], stdout=PIPE)
+    output += to_string_utf8(p.communicate()[0])
+
     for line in output.splitlines():
         if line.startswith('='):
             bits = line.split(';')
@@ -55,11 +58,12 @@ def detectNetworkDevices(ttl=4, timeout=10):
                         details = bits[9].split('" "')
                         for item in details:
                             key, value = item.split('=', 1)
-                            if key == 'ty':
+                            if key == 'ty' or key == 'usb_MDL':
                                 y['mdns'] = value
                                 y['device1'] = "MFG:Hewlett-Packard;MDL:%s;CLS:PRINTER;" % value
                                 break
-                        found_devices[y['ip']] = y
+                        if y['ip'] not in found_devices:
+                            found_devices[y['ip']] = y
                         #log.debug("ip=%s hn=%s ty=%s" %(ip,y['hn'], y['mdns']))
                 except socket.gaierror:
                     pass
diff --git a/probe.py b/probe.py
index 82e5de9..3bf3ba8 100755
--- a/probe.py
+++ b/probe.py
@@ -93,8 +93,8 @@ try:
         elif o in ('-m', '--method'):
             method = a.lower().strip()
 
-            if method not in ('slp', 'mdns', 'bonjour'):
-                mod.usage(error_msg=["Invalid network search protocol name. Must be 'slp' or 'mdns'."])
+            if method not in ('slp', 'mdns', 'avahi'):
+                mod.usage(error_msg=["Invalid network search protocol name. Must be 'slp', 'mdns', or 'avahi'."])
             else:
                 bus = ['net']
 
-- 
2.50.1