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ES8388 audio codec

A driver for the ES8388 audio codec by Everest Semiconductor, wired as a dual in/out AUDIO_CODEC_TYPE device (speaker output + line/mic input). The I2C bus is the device's parent; the I2S controller carrying audio data is referenced via a devicetree phandle.

Wraps Espressif's esp_codec_dev ES8388 implementation.

See https://www.everest-semi.com/pdf/ES8388%20DS.pdf

License: Apache v2.0