KsAcquireDeviceSecurityLock - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// ks.h

KSDDKAPI VOID KsAcquireDeviceSecurityLock(
  [in] KSDEVICE_HEADER Header,
  [in] BOOLEAN         Exclusive
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-ks-ksacquiredevicesecuritylock)

KsAcquireDeviceSecurityLock function

Description

The KsAcquireDeviceSecurityLock function acquires the security lock associated with a device object. An exclusive lock is acquired when changing a security descriptor. When manipulating the security of any object under a particular device object, this lock must be acquired.

Parameters

Header [in]

Points to a driver-allocated device header, previously allocated by KsAllocateDeviceHeader, for the device object described by the KSDEVICE_HEADER structure.

Exclusive [in]

Indicates, if set to TRUE, that the lock is to be acquired exclusively.

Return value

None

Remarks

A shared lock is acquired when validating access during a create. An exclusive lock is acquired when changing a security descriptor.

See also

KsAllocateDeviceHeader

View the official Windows Driver Kit DDI reference

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