# wifiiot\_i2s.h ## **Overview** **Related Modules:** [Wifiiot](Wifiiot.md) **Description:** Declares the I2S interface functions. These functions are used for I2S initialization and data transmission. **Since:** 1.0 **Version:** 1.0 ## **Summary** ## Data Structures

Data Structure Name

Description

WifiIotI2sAttribute

Defines I2S attributes.

## Enumerations

Enumeration Name

Description

WifiIotI2sSampleRate { WIFI_IOT_I2S_SAMPLE_RATE_8K = 8, WIFI_IOT_I2S_SAMPLE_RATE_16K = 16, WIFI_IOT_I2S_SAMPLE_RATE_32K = 32, WIFI_IOT_I2S_SAMPLE_RATE_48K = 48 }

Enumerates I2S sampling rates.

WifiIotI2sResolution { WIFI_IOT_I2S_RESOLUTION_16BIT = 16, WIFI_IOT_I2S_RESOLUTION_24BIT = 24 }

Enumerates I2S resolution.

## Functions

Function Name

Description

I2sInit (const WifiIotI2sAttribute *i2sAttribute)

unsigned int 

Initializes the I2S device.

I2sDeinit (void)

unsigned int 

Deinitializes the I2S device.

I2sWrite (unsigned char *wrData, unsigned int wrLen, unsigned int timeOutMs)

unsigned int 

Writes data to the I2S device.

I2sRead (unsigned char *rdData, unsigned int rdLen, unsigned int timeOutMs)

unsigned int 

Reads data from the I2S device.