From c5cf9803ffc62942214732d792b8ce80dcf3b80c Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <fabio@manganiello.tech>
Date: Sat, 7 Jan 2023 23:09:42 +0100
Subject: [PATCH 1/2] Take into account the notify_only_if_changed parameter

---
 platypush/plugins/hid/__init__.py | 3 ++-
 platypush/schemas/hid.py          | 6 +++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/platypush/plugins/hid/__init__.py b/platypush/plugins/hid/__init__.py
index b3d9498d8b..9705c292a2 100644
--- a/platypush/plugins/hid/__init__.py
+++ b/platypush/plugins/hid/__init__.py
@@ -142,6 +142,7 @@ class HidPlugin(RunnablePlugin):
         path = dev_def['path']
         data_size = rule['data_size']
         poll_seconds = rule['poll_seconds']
+        notify_only_if_changed = rule['notify_only_if_changed']
         last_data = None
         self.logger.info(f'Starting monitor for device {path}')
 
@@ -162,7 +163,7 @@ class HidPlugin(RunnablePlugin):
                 wait()
                 continue
 
-            if len(data) and data != last_data:
+            if not notify_only_if_changed or data != last_data:
                 data_dump = ''.join(f'{x:02x}' for x in data)
                 get_bus().post(HidDeviceDataEvent(data=data_dump, **dev_def))
                 last_data = data
diff --git a/platypush/schemas/hid.py b/platypush/schemas/hid.py
index e260fa820c..6cb372cae7 100644
--- a/platypush/schemas/hid.py
+++ b/platypush/schemas/hid.py
@@ -68,10 +68,10 @@ class HidMonitoredDeviceSchema(HidDeviceSchema):
     )
 
     poll_seconds = fields.Float(
-        missing=0.1,
+        missing=0,
         metadata={
-            'description': 'How often we should check this device for new data '
-            '(default: 0.1 seconds)'
+            'description': 'How often we should wait before data reads '
+            '(default: no wait)'
         },
     )
 

From 40bdc3b7f3313105f3f5efe7c8a02a0040e630fe Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <fabio@manganiello.tech>
Date: Sat, 7 Jan 2023 23:21:59 +0100
Subject: [PATCH 2/2] Always wait 5 seconds (regardless of the poll interval)
 in case of errors.

Also, print the error only on the first occurrence, to prevent log
spamming.
---
 platypush/plugins/hid/__init__.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/platypush/plugins/hid/__init__.py b/platypush/plugins/hid/__init__.py
index 9705c292a2..6e33e8c3f3 100644
--- a/platypush/plugins/hid/__init__.py
+++ b/platypush/plugins/hid/__init__.py
@@ -158,9 +158,10 @@ class HidPlugin(RunnablePlugin):
                     device = hid.Device(dev_def['vendor_id'], dev_def['product_id'])  # type: ignore
                 data = device.read(data_size)
             except Exception as e:
-                self.logger.warning(f'Read error from {path}: {e}')
+                if device:
+                    self.logger.warning(f'Read error from {path}: {e}')
                 device = None
-                wait()
+                sleep(5)
                 continue
 
             if not notify_only_if_changed or data != last_data: