I2cDevice.WriteRead(Byte[], Byte[]) Method

Reference

Definition

Namespace:: Windows.Devices.I2c

Important

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Edit

Performs an atomic operation to write data to and then read data from the inter-integrated circuit (I² C) bus on which the device is connected, and sends a restart condition between the write and read operations.

public:
 virtual void WriteRead(Platform::Array <byte> ^ writeBuffer, Platform::Array <byte> ^ readBuffer) = WriteRead;

void WriteRead(winrt::array_view <byte> const& writeBuffer, winrt::array_view <byte> & readBuffer);

public void WriteRead(byte[] writeBuffer, byte[] readBuffer);

function writeRead(writeBuffer, readBuffer)

Public Sub WriteRead (writeBuffer As Byte(), readBuffer As Byte())

Parameters

writeBuffer: Byte[]

byte[]

A buffer that contains the data that you want to write to the I² C device. This data should not include the bus address.

readBuffer: Byte[]

byte[]

The buffer to which you want to read the data from the I² C bus. The length of the buffer determines how much data to request from the device.

Windows requirements

App capabilities

lowLevel

Remarks

Error Codes

0x80070002

The bus address was not acknowledged.

0x8007045D

The I² C device negatively acknowledged the data transfer before the entire buffer was read.

Applies to