From 6e7ec83c52b1470aa40d6ac1e66c0e472bf1b153 Mon Sep 17 00:00:00 2001
From: cgnmause <c.mause@web.de>
Date: Sun, 11 Nov 2018 09:06:41 -0100
Subject: [PATCH] Added check if the device is a keyboard

---
 scripts/Reader.py | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/scripts/Reader.py b/scripts/Reader.py
index 9c49e6a61..80a82ea18 100644
--- a/scripts/Reader.py
+++ b/scripts/Reader.py
@@ -5,12 +5,23 @@
 import os.path
 import sys
 
-from evdev import InputDevice, categorize, ecodes, list_devices
+from evdev import InputDevice, categorize, ecodes, list_devices, ecodes
 from select import select
 class Reader:
+
+	def is_Keyboard(self, device):
+		device_key_list = device.capabilities()[ecodes.EV_KEY]
+
+		if self.mandatory_keys.issubset(device_key_list) and self.reserved_key.isdisjoint(device_key_list):
+			return True
+		else:
+			return False
+
 	def __init__(self):
 		path = os.path.dirname(os.path.realpath(__file__))
 		self.keys = "X^1234567890XXXXqwertzuiopXXXXasdfghjklXXXXXyxcvbnmXXXXXXXXXXXXXXXXXXXXXXX"
+		self.mandatory_keys = {i for i in range(ecodes.KEY_ESC, ecodes.KEY_D)}
+		self.reserved_key = {0}
 		if not os.path.isfile(path + '/deviceName.txt'):
 			sys.exit('Please run RegisterDevice.py first')
 		else: 
@@ -18,7 +29,7 @@ def __init__(self):
 				deviceName = f.read()
 			devices = [InputDevice(fn) for fn in list_devices()]
 			for device in devices:
-				if device.name == deviceName:
+				if device.name == deviceName and self.is_Keyboard(device):
 					self.dev = device
 					break 		
 			try: