Add I2SInOut library

[relic-se]

A general purpose driver for I2S devices. Allows read-only and bidirectional operation. Write-only operation is allowed as well, but not recommended in lieu of audiobusio.I2SOut. Requires CircuitPython 9.2.1.

Because this library doesn't operate for a single device, it may be better placed within helpers. I'm also open to renaming this library in case it may create confusion with future additions to the CircuitPython core.

[FoamyGuy]

I asked about the naming of this library during the weekly meeting today. The consensus was that it would be good to change the name slightly, but not necessarily due to possible conflict with a future core module.

Can you rename the module to pio_i2sinout please? That way it will be apparent from the name that it's only supported on Raspberry Pi pico MCUs with PIO. This would follow essentially the same naming convention used by https://github.com/adafruit/Adafruit_CircuitPython_PIO_UART albeit with the "adafruit" pre-prended as well since it's an Adafruit library.

[FoamyGuy]

We also discussed helpers vs. drivers a bit, I think helpers is most appropriate for this library, though this one does sit sort of in the middle in that it's code that interfaces with hardware, but since it supports more than a single device helpers is more appropriate. PIO_UART was added under helpers in the adafruit bundle, so it'll be good to be consistent with that one.

[relic-se]

I love the suggestions, @FoamyGuy ! I'll make those adjustments soon to the library to get it more consistent with the practices of PIO_UART.

[relic-se]

@FoamyGuy The library has been updated accordingly. The only additional change is that I removed "InOut" as to more closely match PIO_UART. Usage is now codec = pio_i2s.I2S(...).

[FoamyGuy]

@relic-se I had a look in the actions log, it looks like the bundle build did not succeed because it found commits newer than the latest release in the new repo.

When you have a chance can you make a new release in https://github.com/relic-se/CircuitPython_PIO_I2S, I think it should be able to pass after that.

[relic-se]

@FoamyGuy Gotcha. I've got a new release published: https://github.com/relic-se/CircuitPython_PIO_I2S/releases/tag/1.1.0.

[FoamyGuy]

Thank you!