PVIDEO_WRITE_DATA_LINE callback function (video.h)

WriteDataLine sets the I2C serial data line to high or low.

Syntax

PVIDEO_WRITE_DATA_LINE PvideoWriteDataLine;

VOID PvideoWriteDataLine(
  PVOID HwDeviceExtension,
  UCHAR Data
)
{...}

Parameters

HwDeviceExtension

Pointer to the video miniport driver's per-adapter storage area. For more information, see Device Extensions.

Data

Supplies a value that specifies whether to set the serial data line to high or low. A value of 0 specifies that the data line should be set to low, and a value of 1 specifies that the data line should be set to high.

Return value

None

Remarks

WriteDataLine should be made pageable.

Requirements

See also

HwVidGetVideoChildDescriptor

I2C Functions

ReadClockLine

ReadDataLine

VideoPortDDCMonitorHelper

WriteClockLine