Lines Matching refs:offset
128 IOByteCount offset,
134 if ( (offset + length) > descriptor->getLength() )
142 _descriptorOffsets[_descriptorCount] = offset;
246 IOByteCount offset,
251 // This method returns the physical address of the byte at the given offset
253 // segment from that offset.
258 assert(offset <= _length);
262 if ( offset < _descriptorLengths[index] )
264 pa = _descriptors[index]->getPhysicalSegment(_descriptorOffsets[index] + offset, length, options);
265 if ((_descriptorLengths[index] - offset) < *length) *length = _descriptorLengths[index] - offset;
268 offset -= _descriptorLengths[index];