# VkPhysicalDeviceExternalFenceInfo(3) Manual Page

## Name

VkPhysicalDeviceExternalFenceInfo - Structure specifying fence creation parameters.

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## C Specification

The `VkPhysicalDeviceExternalFenceInfo` structure is defined as:

    // Provided by VK_VERSION_1_1
    typedef struct VkPhysicalDeviceExternalFenceInfo {
        VkStructureType                      sType;
        const void*                          pNext;
        VkExternalFenceHandleTypeFlagBits    handleType;
    } VkPhysicalDeviceExternalFenceInfo;

or the equivalent

    // Provided by VK_KHR_external_fence_capabilities
    typedef VkPhysicalDeviceExternalFenceInfo VkPhysicalDeviceExternalFenceInfoKHR;

## Members

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `handleType` is a VkExternalFenceHandleTypeFlagBits value specifying an external fence handle type for which capabilities will be returned.

## Description

Note | Handles of type `VK_EXTERNAL_FENCE_HANDLE_TYPE_SYNC_FD_BIT` generated by the implementation may represent either Linux Sync Files or Android Fences at the implementation’s discretion. Applications should only use operations defined for both types of file descriptors, unless they know via means external to Vulkan the type of the file descriptor, or are prepared to deal with the system-defined operation failures resulting from using the wrong type.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceExternalFenceInfo-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_FENCE_INFO`

- VUID-VkPhysicalDeviceExternalFenceInfo-pNext-pNext
  `pNext` must be `NULL`

- VUID-VkPhysicalDeviceExternalFenceInfo-handleType-parameter
  `handleType` must be a valid VkExternalFenceHandleTypeFlagBits value

## See Also

VK_VERSION_1_1, VkExternalFenceHandleTypeFlagBits, VkStructureType, vkGetPhysicalDeviceExternalFenceProperties, vkGetPhysicalDeviceExternalFencePropertiesKHR

## Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0