Problems getting HID libraries functioning in Python 3 on Raspberry Pi OS

[G1LRO]

V1.3 firmware has the facility to manipulate registers in the AIOC CPU. The manipulation requires the use of HID libraries, in this case using a Python script.

Raspberry Pi OS produces errors when attempting run the python script. For example:

admin@raspberrypi:~ $ sudo python3 aioc.py
Traceback (most recent call last):
  File "/home/admin/aioc.py", line 43, in <module>
    aioc = hid.Device(vid=0x1209, pid=0x7388)
AttributeError: module 'hid' has no attribute 'Device'

Both the 'hid' and 'hidapi' libraries are loaded (tried singularly and in combination).

Replicating the issue:

• Load Raspbian (Bookworm or Bullseye) to a fresh SD card, boot into a Raspberry Pi (V3b or later)
• Have an AIOC plugged in the USB
• Create the pyhton script 'aioc.py' from issue #61 (comment)
• load HID libraries -

sudo apt install python3-hid
sudo apt install python3-hidapi

• Run the script

sudo python3 aioc.py

I've tried many combinations of 32 and 64 bit OS and on Pi 3 and 4 hardware.

[G1LRO]

The solution is to install just these libraries for the hid function:

sudo pip install hid
sudo apt install libfuse2 libhidapi-hidraw0 libhidapi-libusb0

Then run the script
Tested on 32 bit bullseye

[alexjj]

I've been following the instructions but the python script, aioc.py, gives me errors. I flashed the firmware fine with flash1.3.sh, and the light is on and it appear fine.

Running sudo python3 aioc.py first gives the error:

Traceback (most recent call last):
  File "/home/alex/aioc/aioc.py", line 43, in <module>
    aioc = hid.Device(vid=0x1209, pid=0x7388)
           ^^^^^^^^^^
AttributeError: module 'hid' has no attribute 'Device'. Did you mean: 'device'?

So I changed lined 43 to aioc = hid.device(vid=0x1209, pid=0x7388)

However, I then get the following error:

Traceback (most recent call last):
  File "/home/alex/aioc/aioc.py", line 45, in <module>
    magic = Struct("<L").pack(read(aioc, Register.MAGIC))
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/alex/aioc/aioc.py", line 34, in read
    data = device.get_feature_report(int(address), 5)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "hid.pyx", line 187, in hid.device.get_feature_report
ValueError: not open

My device shows up as ID 1209:7388 Generic All-In-One-Cable with lsusb.

All these packages are installed:

sudo pip install hid
sudo apt install libfuse2 libhidapi-hidraw0 libhidapi-libusb0

I am running on a laptop with Debian 12 to do the flashing...

I had to reboot after installing all that stuff and then it worked! 😅

[spommere]

Hi,

just received an AIOC frmo NA6D.

With all packages installed, and lsusb showing

$ lsusb
Bus 001 Device 004: ID 1209:7388 Generic All-In-One-Cable

I get Broken pipe:

$ sudo python3 aioc.py
Traceback (most recent call last):
File "/home/pi/g1lro/aioc.py", line 45, in
magic = Struct("<L").pack(read(aioc, Register.MAGIC))
File "/home/pi/g1lro/aioc.py", line 34, in read
data = device.get_feature_report(int(address), 5)
File "/usr/local/lib/python3.9/dist-packages/hid/init.py", line 232, in get_feature_report
size = self.__hidcall(
File "/usr/local/lib/python3.9/dist-packages/hid/init.py", line 190, in __hidcall
raise HIDException(err)
hid.HIDException: ioctl (GFEATURE): Broken pipe

Any suggestions ?

[spommere]

Well, I flashed it with the v1.3.0 firmware, now it's working:

Manufacturer: AIOC
Product: All-In-One-Cable
Serial No: b53bed37
Magic: b'AIOC'
Loading Defaults...
Now USBID: 000c0d8c
Now VCOS_TIMCTRL: 00005dc0
Storing...

[skuep]

The USB interface has changed recently, due to issues with windows on the old one. You need to use the correct python script for the according firmware version.

EDIT: I think you were in Version 1.2.0 before... It doesn't have any support for hid configuration at all. This is currently a beta feature.

Where is the script from, that you are running?