ALC5663 Codec Driver

The ALC5663 (Realtek RT5663) is a headphone amplifier / codec, with the following features:

• Support for up to 32-bit, 192KHz, sterio signals.
• Support for analog microphone recording on headset devices.
• Support for plug detect, headsets with 3 or 4 buttons.

The ALC5663 is controlled via an I2C bus, and uses an I2S/PCM interface for audio data.

• Controlled off an I2C bus.
• Audio streamed via an I2S/PCM bus.

This driver is currently just a stub, not actually capable of recording or playing audio.