// video.h

PVIDEO_READ_DATA_LINE PvideoReadDataLine;

BOOLEAN PvideoReadDataLine(
  PVOID HwDeviceExtension
)
{...}
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Windows Driver Kit DDI reference (nc-video-pvideo_read_data_line)

PVIDEO_READ_DATA_LINE callback function

Description

ReadDataLine reads a single data bit from the I2C serial data line.

Parameters

`HwDeviceExtension`

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

Return value

ReadDataLine returns 1 if the serial data line is high and 0 if the serial data line is low.

Remarks

ReadDataLine should be made pageable.

PVIDEO_READ_DATA_LINE - NtDoc