libgpiod_pulsein64 not found

I tried running test of pulseIn on a 64 Bit RaspiOS system and it complained that libgpiod_pulsein64 is not found.

Python 3.9.2 (default, Feb 28 2021, 17:03:44) 
[GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import board
>>> import pulseio
>>> pulses = pulseio.PulseIn(board.D18)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.9/dist-packages/adafruit_blinka/microcontroller/bcm283x/pulseio/PulseIn.py", line 74, in __init__
    self._process = subprocess.Popen(cmd)
  File "/usr/lib/python3.9/subprocess.py", line 951, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.9/subprocess.py", line 1823, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '/usr/local/lib/python3.9/dist-packages/adafruit_blinka/microcontroller/bcm283x/pulseio/libgpiod_pulsein64'
>>> 

I created my own

sudo apt install libgpiod-dev
git clone https://github.com/adafruit/libgpiod_pulsein.git
cd libgpiod_pulsein/src
make 
sudo cp libgpiod_pulsein /usr/local/lib/python3.9/dist-packages/adafruit_blinka/microcontroller/bcm283x/pulseio/libgpiod_pulsein64

and it now works fine - even ran the dht22 simpletest!

pi@gjnpi4test64bit:~/libgpiod_pulsein/src $ python3
Python 3.9.2 (default, Feb 28 2021, 17:03:44) 
[GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import board
>>> import pulseio
>>> pulses = pulseio.PulseIn(board.D18)
>>> 

pi@gjnpi4test64bit:~ $ python3 dht.py 
Temp: 77.0 F / 25.0 C    Humidity: 33.0% 
Temp: 76.5 F / 24.7 C    Humidity: 22.5% 
Temp: 76.3 F / 24.6 C    Humidity: 22.4% 

However, I see that libgpiod_pulsein64 is in the repository but it is not installed via sudo pip3 install adafruit-blinka https://github.com/adafruit/Adafruit_Blinka/tree/main/src/adafruit_blinka/microcontroller/bcm283x/pulseio

does this line have to be modified to include libgpiod_pulsein64? https://github.com/adafruit/Adafruit_Blinka/blob/main/setup.py#L70

If that is sll it needs, I’ll be happy to create a PR. I just wanted to check that there was not more that needed to be done.

[makermelissa]

Hmm, ok. I didn’t realize Pip was not installing the binary, which is a problem. I’ll take a look into if there’s a way to remedy that. As for libgpiod-dev, we can update our raspberry pi blinka installer script, which might also be the answer for the missing binary.

[StevenAFC]

I am also having this issue, I have had to do the following in my Dockerfile:

# Hack
RUN wget https://github.com/adafruit/Adafruit_Blinka/raw/main/src/adafruit_blinka/microcontroller/bcm283x/pulseio/libgpiod_pulsein64
RUN cp libgpiod_pulsein64 /opt/venv/lib/python3.10/site-packages/adafruit_blinka/microcontroller/bcm283x/pulseio/libgpiod_pulsein64
RUN chmod u=rwx,g=rwx,o=rwx /opt/venv/lib/python3.10/site-packages/adafruit_blinka/microcontroller/bcm283x/pulseio/libgpiod_pulsein64