+/**\r
+ Runs diagnostics on a controller.\r
+\r
+ @param This A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOL\r
+ instance.\r
+ @param ControllerHandle The handle of the controller to run diagnostics on.\r
+ @param ChildHandle The handle of the child controller to run diagnostics on\r
+ This is an optional parameter that may be NULL. It will\r
+ be NULL for device drivers. It will also be NULL for a\r
+ bus drivers that wish to run diagnostics on the bus\r
+ controller. It will not be NULL for a bus driver that\r
+ wishes to run diagnostics on one of its child\r
+ controllers.\r
+ @param DiagnosticType Indicates type of diagnostics to perform on the\r
+ controller specified by ControllerHandle and ChildHandle.\r
+ See "Related Definitions" for the list of supported\r
+ types.\r
+ @param Language A pointer to a three character ISO 639-2 language\r
+ identifier. This is the language in which the optional\r
+ error message should be returned in Buffer, and it must\r
+ match one of the languages specified in\r
+ SupportedLanguages. The number of languages supported by\r
+ a driver is up to the driver writer.\r
+ @param ErrorType A GUID that defines the format of the data returned in\r
+ Buffer.\r
+ @param BufferSize The size, in bytes, of the data returned in Buffer.\r
+ @param Buffer A buffer that contains a Null-terminated Unicode string\r
+ plus some additional data whose format is defined by\r
+ ErrorType. Buffer is allocated by this function with\r
+ AllocatePool(), and it is the caller's responsibility\r
+ to free it with a call to FreePool().\r
+\r
+ @retval EFI_SUCCESS The controller specified by ControllerHandle and\r
+ ChildHandle passed the diagnostic.\r
+ @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.\r
+ @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
+ EFI_HANDLE.\r
+ @retval EFI_INVALID_PARAMETER Language is NULL.\r
+ @retval EFI_INVALID_PARAMETER ErrorType is NULL.\r
+ @retval EFI_INVALID_PARAMETER BufferType is NULL.\r
+ @retval EFI_INVALID_PARAMETER Buffer is NULL.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support\r
+ running diagnostics for the controller specified\r
+ by ControllerHandle and ChildHandle.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
+ type of diagnostic specified by DiagnosticType.\r
+ @retval EFI_UNSUPPORTED The driver specified by This does not support the\r
+ language specified by Language.\r
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources available to complete\r
+ the diagnostics.\r
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources available to return\r
+ the status information in ErrorType, BufferSize,\r
+ and Buffer.\r
+ @retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and\r
+ ChildHandle did not pass the diagnostic.\r
+\r
+**/\r