PVIDEO_READ_CLOCK_LINE callback function (video.h)
ReadClockLine reads a single data bit from the I2C serial clock line.
Syntax
PVIDEO_READ_CLOCK_LINE PvideoReadClockLine;
BOOLEAN PvideoReadClockLine(
PVOID HwDeviceExtension
)
{...}
Parameters
HwDeviceExtension
Pointer to the miniport driver's per-adapter storage area. For more information, see Device Extensions.
Return value
ReadClockLine returns 1 if the serial clock line is high and 0 if the serial clock line is low.
Remarks
ReadClockLine should be made pageable.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | video.h (include Video.h) |