Re: i2c-slave-testunit over i2c-gpio bus

Wolfram Sang
2025-02-18T09:44:18Z

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Hi,

> As far as I learned from the i2c-gpio source, the module doesn't
> introduce itself as i2c slave compatible. Do I understand it
> correctly? If so, would it have any sense to add i2c slave support for
> i2c-gpio?

No, i2c-gpio is not suitable for this. It would mean Linux had to read
the GPIOs constantly to not miss anything, e.g. the remote controller
starting a communication. With all the latencies involved in running the
system, this cannot be guaranteed. You need dedicated HW for that.

Sorry for no better news,

Wolfram

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