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