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apmorton / pyhidapi

hidapi bindings in ctypes
MIT License
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still get error with hid_get_input_report when using 1.0.5 #54

Closed allenz92 closed 2 years ago

allenz92 commented 2 years ago

Ubuntu 20.04.4 LTS python3.8

root@jmx-desktop:/home/jmx# pip list | grep hid hid 1.0.5

Here is my stack trace:

import hid Traceback (most recent call last): File "", line 1, in File "/usr/local/lib/python3.8/dist-packages/hid/init.py", line 83, in hidapi.hid_get_input_report.argtypes = [ctypes.c_void_p, ctypes.c_char_p, ctypes.c_size_t] File "/usr/lib/python3.8/ctypes/init.py", line 386, in getattr func = self.getitem(name) File "/usr/lib/python3.8/ctypes/init.py", line 391, in getitem func = self._FuncPtr((name_or_ordinal, self)) AttributeError: /lib/aarch64-linux-gnu/libhidapi-hidraw.so.0: undefined symbol: hid_get_input_report

apmorton commented 2 years ago

This indicates your version of the native libhidapi is too old.

hid_get_input_report is a fairly recent addition to libhidapi, so it isn't surprising.

You need to update your native library, and then pyhidapi should work.

mike-lawrence commented 2 years ago

@allenz92 If you're on 20.04, then apt is serving you version 0.9 of libhidapi. I'm still working out myself whether it's possible to pull a newer version or build it from source, or if I'll need to fully upgrade to 22.04 to get it.