iokit/IOKit/IOMemoryCursor.h

77     @discussion Pointer to a C function that outputs a single physical segment to an element in the array as defined by the segments and segmentIndex parameters.
79     @param segments Base of the output vector of DMA address length pairs.
80     @param segmentIndex Index to output 'segment' in the 'segments' array.
83 				    void *	    segments,
137     @discussion Generates a list of physical segments from the given memory descriptor, relative to the current position of the descriptor.
140     @param segments Void pointer to base of output physical scatter/gather list.  Always passed directly onto the SegmentFunction without interpretation by the cursor.
141     @param maxSegments Maximum number of segments that can be written to segments array.
144     @result If the descriptor is exhausted of memory, a zero is returned, otherwise the number of segments that were filled in is returned.
149 				      void *		  segments,
169     @abstract Outputs the given segment into the output segments array in natural byte order.
171     @param segments Base of the output vector of DMA address length pairs.
172     @param segmentIndex Index to output 'segment' in the 'segments' array.
175 			      void *	      segments,
210     @discussion Generates a list of physical segments from the given memory descriptor, relative to the current position of the descriptor.  Wraps IOMemoryCursor::genPhysicalSegments.
213     @param segments Pointer to an array of IOMemoryCursor::PhysicalSegments for the output physical scatter/gather list.
214     @param maxSegments Maximum number of segments that can be written to segments array.
217     @result If the descriptor is exhausted of memory, a zero is returned, otherwise the number of segments that were filled in is returned.
221 				       PhysicalSegment	  *segments,
226 	return genPhysicalSegments(descriptor, fromPosition, segments,
244     @abstract Outputs the given segment into the output segments array in big endian byte order.
246     @param segments Base of the output vector of DMA address length pairs.
247     @param segmentIndex Index to output 'segment' in the 'segments' array.
250 			      void *	      segments,
286     @discussion Generates a list of physical segments from the given memory descriptor, relative to the current position of the descriptor.  Wraps IOMemoryCursor::genPhysicalSegments.
289     @param segments Pointer to an array of IOMemoryCursor::PhysicalSegments for the output physical scatter/gather list.
290     @param maxSegments Maximum number of segments that can be written to segments array.
293     @result If the descriptor is exhausted of memory, a zero is returned, otherwise the number of segments that were filled in is returned.
297 				       PhysicalSegment *    segments,
302 	return genPhysicalSegments(descriptor, fromPosition, segments,
320     @abstract Outputs the given segment into the output segments array in little endian byte order.
322     @param segments Base of the output vector of DMA address length pairs.
323     @param segmentIndex Index to output 'segment' in the 'segments' array.
326 			      void *	      segments,
360     @discussion Generates a list of physical segments from the given memory descriptor, relative to the current position of the descriptor.  Wraps IOMemoryCursor::genPhysicalSegments.
363     @param segments Pointer to an array of IOMemoryCursor::PhysicalSegments for the output physical scatter/gather list.
364     @param maxSegments Maximum number of segments that can be written to segments array.
367     @result If the descriptor is exhausted of memory, a zero is returned, otherwise the number of segments that were filled in is returned.
371 				       PhysicalSegment *    segments,
376 	return genPhysicalSegments(descriptor, fromPosition, segments,