cec.EVENT_KEYPRESS not working after updating to 0.2.7

[superuser789]

Hi,
In previous cec 0.2.6, the following code was working fine. But it is not working now after updating to 0.2.7.

import cec
import time


cec.init()

print("Ready")

def onkey(event, key , state):
  if state > 0:
    print("Got key", key, "state", state)

cec.add_callback(onkey, cec.EVENT_KEYPRESS)

while True:
 time.sleep(9e8)

What changes should I do to make it work again ?

Thanks.

[Nikola Forró]

Sorry for late reply. Could you be more specific? I just tried your code and it works fine.

[TheNetStriker]

I just tried this on my Raspberry Pi 4 I'm also getting no events with 2.7. I also tried with EVENT_ALL, but I don't receive anyting, but power_on and standby are working. Any idea what could be the problem?

Edit: I found keys that are working, but I'm looking for an event when the device enters standby or is powered on externally. Is this already possible?

[Nikola Forró]

@TheNetStriker Yes, for example my TV broadcasts CEC_OPCODE_ROUTING_CHANGE (with new address parameter set to 1.0.0.0) after it's powered on, and it broadcasts CEC_OPCODE_STANDBY when it enters standby. So just use EVENT_COMMAND callback and monitor commands your device broadcasts.

[TheNetStriker]

I just tested this with the following code:

def onCommand(event, cmd, convert_cmd):
    print("cmd", cmd, "convert_cmd", convert_cmd)

cec.add_callback(onCommand, cec.EVENT_COMMAND)

But I don't get any events. Is there any way to debug this?

[Nikola Forró]

There are only two arguments to the callback, you should use def onCommand(event, cmd):.
Set up a log callback, or run cec-client from libcec and examine the logs, all communication should be there.

[TheNetStriker]

Thanks for the quick help. I managed to the the power events with this code:

def onCommand(event, cmd):
    #print("event", event, "cmd", cmd)
    opcode = cmd["opcode"]
    parameters = cmd["parameters"]
    if opcode == cec.CEC_OPCODE_STANDBY:
        PublishTvIsOn(False)
    if opcode == cec.CEC_OPCODE_ROUTING_CHANGE and parameters == b'\x00\x00@\x00':
        PublishTvIsOn(True)