Mausabfragen mit dem Raspberry PI

Mit einer umgebauten Maus will ich den Raspberry PI als Radio steuern. Die Maus soll dabei direct abgegriffen werden. Hier ein paar Codeschnipsel wie das geht:

 

#!/usr/bin/python
import struct
import time
import sys
import select

infile_path = "/dev/input/event" + (sys.argv[1] if len(sys.argv) > 1 else "0")

#long int, long int, unsigned short, unsigned short, unsigned int
FORMAT = 'llHHI'
EVENT_SIZE = struct.calcsize(FORMAT)

#open file in binary mode
in_file = open(infile_path, "rb")

event = in_file.read(EVENT_SIZE)

while event:
(tv_sec, tv_usec, type, code, value) = struct.unpack(FORMAT, event)

if type == 1 and code==273 and value==1:
print("Key Rechts")

if type == 1 and code==272 and value==1:
print("Key links")

if type == 1 and code==274 and value==1:
print("RadKlick");

if type == 2 and code==8 and value ==1:
# swallow identical events directly after the existing one
while (in_file in select.select([in_file], [], [], 0.1)[0]):
#print("in while")
event = in_file.read(EVENT_SIZE)
print("Scrollup")

if type == 2 and code==8 and value>1:
# swallow identical events directly after the existing one
while (in_file in select.select([in_file], [], [], 0.3)[0]):
#print("in while")
event = in_file.read(EVENT_SIZE)
print("Scrolldown")

event = in_file.read(EVENT_SIZE)
#print("gug")

in_file.close()

 


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