From dc60a6206303f91f48845894578dc460e043f47f Mon Sep 17 00:00:00 2001
From: Pietro Brenna <pietrobrenna@hotmail.it>
Date: Tue, 1 Oct 2019 14:56:30 +0200
Subject: [PATCH] Trovo device dinamicamente

---
 libbeepz_test/test.py | 34 +++++++++++++++++++++++-----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/libbeepz_test/test.py b/libbeepz_test/test.py
index ff1b803..6da8898 100644
--- a/libbeepz_test/test.py
+++ b/libbeepz_test/test.py
@@ -4,10 +4,16 @@ Created on 1 ott 2019
 @author: Emanuele Trabattoni
 '''
 
-from evdev import InputDevice, ecodes, categorize
+from evdev import InputDevice, ecodes, categorize, list_devices
 from select import select
 
-dev = InputDevice('/dev/input/by-id/usb-0581_0106-event-kbd')
+devices = [InputDevice(path) for path in list_devices()]
+d = filter(lambda x: x.info.vendor == 1409
+           and x.info.product == 262
+           and ('KEY_1', 2) in x.capabilities(verbose=True)[('EV_KEY', 1)], devices)
+lista = list(d)
+dev = lista[0]
+#dev = InputDevice('/dev/input/by-id/usb-0581_0106-event-kbd')
 #dev = InputDevice('/dev/input/by-id/usb-Chicony_USB_Keyboard-event-kbd')
 dev.grab()
 
@@ -24,22 +30,28 @@ char_map = {
     458791: 0,
     458792: "Invio"
 }
+
+
 def get_numero(dev):
     stringa = ""
     last = None
     while True:
-        r,w,x = select([dev], [], [])
+        r, w, x = select([dev], [], [])
         for event in dev.read():
-            if event.code == 4 and event.type==4:
+            if event.code == 4 and event.type == 4:
                 if last is None:
-                    last = char_map[event.value]
-                    if last != "Invio":
-                        stringa += str(last)
-                    else:
-                        yield stringa
-                        stringa = ""
+                    try:
+                        last = char_map[event.value]
+                        if last != "Invio":
+                            stringa += str(last)
+                        else:
+                            yield stringa
+                            stringa = ""
+                    except KeyError:
+                        print("Carattere sconosciuto")
                 else:
                     last = None
 
+
 for x in get_numero(dev):
-    print(x[0:12])
\ No newline at end of file
+    print("ricevo", x[0:12])