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    • OEM_MmUnmapIoSpace

    Owned by Albinleo Velappan (Deactivated)
    Last updated: 14. Oct 2022
    1 min read

    In Windows Embedded CE6 MmUnmapIoSpace is only callable from kernel-space. The function OEM_MmUnmapIoSpace is a workaround to use MmUnmapIoSpace from user-space.
    This function maps a physical address space to a nonpaged, process-dependent address space. It provides a virtual address, which is directly mapped, to the device.
    See Platform-Builder-Help for details.

    VOID OEM_MmUnmapIoSpace( PVOID BaseAddress, ULONG NumberOfBytes );

    Parameters

    BaseAddress
    [in] Pointer to the base virtual address to which MmMapIoSpace mapped physical pages.

    NumberOfBytes
    [in] Number of bytes that MmMapIoSpace mapped.

    Return Values

    None.

    Requirements

    OS Versions: Windows Embedded CE 6.
    Header: drvlib_app.h
    Link Library: drvlib_app.lib
    added: 14.03.2008