+ This function checks to see if the driver specified by This supports the device specified by \r
+ ControllerHandle. Drivers will typically use the device path attached to \r
+ ControllerHandle and/or the services from the bus I/O abstraction attached to \r
+ ControllerHandle to determine if the driver supports ControllerHandle. This function \r
+ may be called many times during platform initialization. In order to reduce boot times, the tests \r
+ performed by this function must be very small, and take as little time as possible to execute. This \r
+ function must not change the state of any hardware devices, and this function must be aware that the \r
+ device specified by ControllerHandle may already be managed by the same driver or a \r
+ different driver. This function must match its calls to AllocatePages() with FreePages(), \r
+ AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). \r
+ Because ControllerHandle may have been previously started by the same driver, if a protocol is \r
+ already in the opened state, then it must not be closed with CloseProtocol(). This is required \r
+ to guarantee the state of ControllerHandle is not modified by this function.\r
+\r