}
status = STATUS_SUCCESS;// We must not fail this IRP.
break;
+
+ case IRP_MN_REMOVE_DEVICE:
+ //
+ // We handle REMOVE_DEVICE just like STOP_DEVICE. This is because
+ // the device is still physically present (or at least we don't know any better)
+ // so we have to retain the PDO after stopping and removing power from it.
+ //
+ if (DeviceData->InterfaceName.Length != 0)
+ IoSetDeviceInterfaceState(&DeviceData->InterfaceName, FALSE);
+
+ if (DeviceData->AcpiHandle && acpi_bus_power_manageable(DeviceData->AcpiHandle) &&
+ !ACPI_SUCCESS(acpi_bus_set_power(DeviceData->AcpiHandle, ACPI_STATE_D3)))
+ {
+ DPRINT1("Device %x failed to enter D3!\n", DeviceData->AcpiHandle);
+ state.DeviceState = PowerDeviceD3;
+ PoSetPowerState(DeviceData->Common.Self, DevicePowerState, state);
+ DeviceData->Common.DevicePowerState = PowerDeviceD3;
+ }
+
+ SET_NEW_PNP_STATE(DeviceData->Common, Stopped);
+ status = STATUS_SUCCESS;
+ break;
+
+ case IRP_MN_QUERY_REMOVE_DEVICE:
+ SET_NEW_PNP_STATE(DeviceData->Common, RemovalPending);
+ status = STATUS_SUCCESS;
+ break;
+
+ case IRP_MN_CANCEL_REMOVE_DEVICE:
+ if (RemovalPending == DeviceData->Common.DevicePnPState)
+ {
+ RESTORE_PREVIOUS_PNP_STATE(DeviceData->Common);
+ }
+ status = STATUS_SUCCESS;
+ break;
+
case IRP_MN_QUERY_CAPABILITIES:
//
Started, // Device has received the START_DEVICE IRP
StopPending, // Device has received the QUERY_STOP IRP
Stopped, // Device has received the STOP_DEVICE IRP
+ RemovalPending, // Device has received the QUERY_REMOVE IRP
UnKnown // Unknown state
} DEVICE_PNP_STATE;