# VkAddressCommandFlagBitsKHR(3) Manual Page

## Name

VkAddressCommandFlagBitsKHR - Bitmask specifying address copy parameters

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## C Specification

Bits which can be set in a VkAddressCommandFlagsKHR mask are:

    // Provided by VK_KHR_device_address_commands
    typedef enum VkAddressCommandFlagBitsKHR {
        VK_ADDRESS_COMMAND_PROTECTED_BIT_KHR = 0x00000001,
        VK_ADDRESS_COMMAND_FULLY_BOUND_BIT_KHR = 0x00000002,
        VK_ADDRESS_COMMAND_STORAGE_BUFFER_USAGE_BIT_KHR = 0x00000004,
        VK_ADDRESS_COMMAND_UNKNOWN_STORAGE_BUFFER_USAGE_BIT_KHR = 0x00000008,
      // Provided by VK_KHR_device_address_commands with VK_EXT_transform_feedback
        VK_ADDRESS_COMMAND_TRANSFORM_FEEDBACK_BUFFER_USAGE_BIT_KHR = 0x00000010,
      // Provided by VK_KHR_device_address_commands with VK_EXT_transform_feedback
        VK_ADDRESS_COMMAND_UNKNOWN_TRANSFORM_FEEDBACK_BUFFER_USAGE_BIT_KHR = 0x00000020,
    } VkAddressCommandFlagBitsKHR;

## Description

- VK_ADDRESS_COMMAND_PROTECTED_BIT_KHR specifies that an address range is allocated from protected memory.

- VK_ADDRESS_COMMAND_FULLY_BOUND_BIT_KHR specifies that an address range will be fully bound to physical memory when accessed.

- VK_ADDRESS_COMMAND_STORAGE_BUFFER_USAGE_BIT_KHR specifies that all buffers containing any part of an address range were created with the VK_BUFFER_USAGE_STORAGE_BUFFER_BIT usage.

- VK_ADDRESS_COMMAND_UNKNOWN_STORAGE_BUFFER_USAGE_BIT_KHR specifies that whether buffers containing an any part of an address range were created with VK_BUFFER_USAGE_STORAGE_BUFFER_BIT usage or not is unknown.

- VK_ADDRESS_COMMAND_TRANSFORM_FEEDBACK_BUFFER_USAGE_BIT_KHR specifies that all buffers containing any part of an address range are allocated with the VK_BUFFER_USAGE_TRANSFORM_FEEDBACK_BUFFER_BIT_EXT usage.

- VK_ADDRESS_COMMAND_UNKNOWN_TRANSFORM_FEEDBACK_BUFFER_USAGE_BIT_KHR specifies that whether buffers containing an any part of an address range were created with VK_BUFFER_USAGE_TRANSFORM_FEEDBACK_BUFFER_BIT_EXT usage or not is unknown.

If neither VK_ADDRESS_COMMAND_STORAGE_BUFFER_USAGE_BIT_KHR nor VK_ADDRESS_COMMAND_UNKNOWN_STORAGE_BUFFER_USAGE_BIT_KHR are specified, the address range must not be aliased with any buffer allocated with the VK_BUFFER_USAGE_STORAGE_BUFFER_BIT. If neither VK_ADDRESS_COMMAND_TRANSFORM_FEEDBACK_BUFFER_USAGE_BIT_KHR nor VK_ADDRESS_COMMAND_UNKNOWN_TRANSFORM_FEEDBACK_BUFFER_USAGE_BIT_KHR are specified, the address range must not be aliased with any buffer allocated with the VK_BUFFER_USAGE_TRANSFORM_FEEDBACK_BUFFER_BIT_EXT.

Note | Buffers can return overlapping address ranges if they are bound to overlapping ranges of a VkDeviceMemory object. Applications should ensure that if they do this kind of aliasing, that they consistently either include or do not include VK_BUFFER_USAGE_STORAGE_BUFFER_BIT and VK_BUFFER_USAGE_TRANSFORM_FEEDBACK_BUFFER_BIT_EXT on aliased buffers when considering these flags.

## See Also

VK_KHR_device_address_commands, VkAddressCommandFlagsKHR

## 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0