How to find any documentation for smbus?
km
kammamuri at libero.it
Sat Oct 28 16:19:22 EDT 2023
Il Sat, 28 Oct 2023 17:08:00 +0100, Chris Green ha scritto:
> I am using the python3 smbus module, but it's hard work because of the
> lack of documentation. Web searches confirm that the documentation is
> somewhat thin!
>
> If you do the obvious this is what you get:-
>
> >>> import smbus dir (smbus)
> ['SMBus', '__doc__', '__file__', '__loader__', '__name__',
> '__package__', '__spec__']
> >>> help(smbus)
>
>
> Help on module SMBus:
>
> NAME
> SMBus
>
> DESCRIPTION
> This module defines an object type that allows SMBus
> transactions on hosts running the Linux kernel. The host kernel
> must have I2C support, I2C device interface support, and a bus
> adapter driver.
> All of these can be either built-in to the kernel, or loaded
> from modules.
>
> Because the I2C device interface is opened R/W, users of this
> module usually must have root permissions.
>
> FILE
> /usr/lib/python3/dist-packages/smbus.cpython-39-arm-linux-
gnueabihf.so
>
>
> Even a list of available methods would be handy! :-)
>
>
> Presumably python3's smbus is just a wrapper so if I could find the
> underlying C/C++
> documentation it might help.
https://pypi.org/project/smbus2/
smbus2 is designed to be a "drop-in replacement of smbus". SO you can look
at its documentation for or use it instead of smbus.
Disclaimer: I haven't any experience on this library
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