isadma_seg        938 dev/isa/wds.c  	struct isadma_seg mbx_phys[1];
isadma_seg         93 dev/isa/wdsreg.h 	struct isadma_seg scb_phys[1];	/* phys segment of this scb */
isadma_seg         94 dev/isa/wdsreg.h 	struct isadma_seg data_phys[WDS_NSEG];	/* phys segments of data */