# VkPhysicalDeviceTimelineSemaphoreFeatures(3) Manual Page

## Name

VkPhysicalDeviceTimelineSemaphoreFeatures - Structure describing timeline semaphore features that can be supported by an implementation

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## C Specification

The `VkPhysicalDeviceTimelineSemaphoreFeatures` structure is defined as:

    // Provided by VK_VERSION_1_2
    typedef struct VkPhysicalDeviceTimelineSemaphoreFeatures {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           timelineSemaphore;
    } VkPhysicalDeviceTimelineSemaphoreFeatures;

or the equivalent

    // Provided by VK_KHR_timeline_semaphore
    typedef VkPhysicalDeviceTimelineSemaphoreFeatures VkPhysicalDeviceTimelineSemaphoreFeaturesKHR;

## Members

This structure describes the following feature:

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

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

## Description

- `timelineSemaphore` indicates whether semaphores created with a VkSemaphoreType of `VK_SEMAPHORE_TYPE_TIMELINE` are supported.

If the `VkPhysicalDeviceTimelineSemaphoreFeatures` structure is included in the `pNext` chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a VkDevice with any features described by `VkPhysicalDeviceTimelineSemaphoreFeatures`, it must add an instance of the structure, with the desired feature members set to `VK_TRUE`, to the `pNext` chain of VkDeviceCreateInfo when creating the VkDevice.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceTimelineSemaphoreFeatures-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TIMELINE_SEMAPHORE_FEATURES`

## See Also

VK_KHR_timeline_semaphore, VK_VERSION_1_2, VkBool32, VkStructureType

## 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