sg_ptr            916 dev/ic/adw.c   				sg_block->sg_ptr = NULL; /* next link = NULL */
sg_ptr            925 dev/ic/adw.c   		sg_block->sg_ptr = sg_block_physical_addr;
sg_ptr            712 dev/ic/adwlib.h 	u_int32_t	sg_ptr;			/* links to next sg block */