PVIDEO_WRITE_CLOCK_LINE callback function

WriteClockLine sets the I2C serial clock line to high or low.

Syntax

PVIDEO_WRITE_CLOCK_LINE PvideoWriteClockLine;

void PvideoWriteClockLine(
  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 clock line to high or low. A value of 0 specifies that the clock line should be set to low, and a value of 1 specifies that the clock line should be set to high.

Return Value

None

Remarks

WriteClockLine should be made pageable.

Requirements

   
Target Platform Desktop
Header video.h (include Video.h)

See Also

HwVidGetVideoChildDescriptor

I2C Functions

ReadClockLine

ReadDataLine

VideoPortDDCMonitorHelper

WriteDataLine