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ES7243E microphone ADC
A driver for the ES7243E stereo audio ADC by Everest Semiconductor, wired as an
input-only AUDIO_CODEC_TYPE device. The I2C bus is the device's parent, the I2S
controller carrying the audio data is referenced via a devicetree phandle. The ADC
runs as I2S slave with MCLK from the pad (MCLK = 256 x sample rate).
Wraps Espressif's esp_codec_dev ES7243E implementation.
License: Apache v2.0