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Add Pi Keyboard code node

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This commit is contained in:
Dave Conway-Jones
2015-12-21 10:27:58 +00:00
parent 65daaeb617
commit 86064651af
4 changed files with 111 additions and 2 deletions
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30
nodes/core/hardware/nrgpio.py
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@@ -15,7 +15,10 @@
# Import library functions we need
import RPi.GPIO as GPIO
import struct
import sys
import os
import subprocess
bounce = 20 # bounce time in mS to apply
@@ -193,6 +196,29 @@ if len(sys.argv) > 2:
file.close()
sys.exit(0)
elif cmd == "kbd": # catch keyboard button events
try:
while not os.path.isdir("/dev/input/by-path"):
time.sleep(10)
infile = subprocess.check_output("ls /dev/input/by-path/ | grep -m 1 'kbd'", shell=True).strip()
infile_path = "/dev/input/by-path/" + infile
EVENT_SIZE = struct.calcsize('llHHI')
file = open(infile_path, "rb")
event = file.read(EVENT_SIZE)
while event:
(tv_sec, tv_usec, type, code, value) = struct.unpack('llHHI', event)
#if type != 0 or code != 0 or value != 0:
if type == 1:
# type,code,value
print("%u,%u" % (code, value))
event = file.read(EVENT_SIZE)
print "0,0"
file.close()
sys.exit(0)
except:
file.close()
sys.exit(0)
elif len(sys.argv) > 1:
cmd = sys.argv[1].lower()
if cmd == "rev":
@@ -200,8 +226,8 @@ elif len(sys.argv) > 1:
elif cmd == "ver":
print GPIO.VERSION
else:
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|ver {pin} {value|up|down}"
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|kbd|ver {pin} {value|up|down}"
print " only ver (gpio version) and rev (board revision) accept no pin parameter."
else:
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|ver {pin} {value|up|down}"
print "Bad parameters - in|out|pwm|buzz|byte|borg|mouse|kbd|ver {pin} {value|up|down}"