SetMemoryDescriptor

Declaration

virtual kern_return_t SetMemoryDescriptor(IOMemoryDescriptor *memoryDescriptor, uint32_t index);

Parameters

• memoryDescriptor:

  The memory descriptor associated with the ring index. Must not be NULL.

• index:

  Ring index to be populated

Return Value

KERN_SUCCESS is successful see IOReturn.h for error codes.

Discussion

Add a memory descriptor to the ring.

Caller must fill the ring starting at index 0. The entire ring must be populated up to index size-1