GPIO_CLX_ProcessAddDevicePostDeviceCreate - NtDoc
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headers
// gpioclx.h
NTSTATUS GPIO_CLX_ProcessAddDevicePostDeviceCreate(
[in] WDFDRIVER Driver,
[in] WDFDEVICE Device
);
View the official Windows Driver Kit DDI referenceNo description available.
The GPIO_CLX_ProcessAddDevicePostDeviceCreate method passes a framework device object to the GPIO framework extension (GpioClx).
Driver [in]A WDFDRIVER handle to the framework driver object for the GPIO controller driver.
Device [in]A WDFDEVICE handle to the framework device object that represents the GPIO controller. The caller obtained this handle from the WdfDeviceCreate call that created the device object.
GPIO_CLX_ProcessAddDevicePostDeviceCreate returns STATUS_SUCCESS if the call is successful. Possible return values include the following error codes.
| Return code | Description |
|---|---|
| STATUS_INVALID_PARAMETER | The caller is not a registered client of GpioClx. |
| STATUS_UNSUCCESSFUL | The framework failed to find the device name of the GPIO controller. |
| STATUS_INSUFFICIENT_RESOURCES | Out of memory. |
Your GPIO controller driver must call this method in its EvtDriverDeviceAdd callback function, after the call to the WdfDeviceCreate method that creates the device object (FDO) that represents the GPIO controller. Otherwise, GpioClx cannot handle I/O requests or process interrupts for the new device object.
For a code example that contains a call to GPIO_CLX_ProcessAddDevicePostDeviceCreate, see GPIO_CLX_ProcessAddDevicePreDeviceCreate.
GPIO_CLX_ProcessAddDevicePreDeviceCreate