GUID_DEVINTERFACE_I2C

The GUID_DEVINTERFACE_I2C device interface class is defined for display adapter drivers that operate in the context of the Windows Vista Display Driver Model and perform I2C transactions with monitor child devices.

Remarks

Drivers register instances of this device interface class to notify the operating system and applications of the presence of I2C interfaces that perform transactions with monitor child devices.

If a display miniport driver supports a direct-call I2C interface for this device setup class, a kernel-mode component can retrieve the direct-call interface by calling the miniport driver's DxgkDdiQueryInterface function and supplying GUID_DEVINTERFACE_I2C to specify the interface type.

For information about the I2C bus, see I2C Bus and Child Devices of the Display Adapter.

Requirements