2.11BSD#431 - /usr/src/sys/pdpuba/pdma.h

   1: /*
   2:  * Copyright (c) 1986 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  *
   6:  *	@(#)pdma.h	1.1 (2.10BSD Berkeley) 12/1/86
   7:  */
   8: 
   9: /*
  10:  * Structure to describe pseudo-DMA buffer used by DZ-11 pseudo-DMA
  11:  * routines.  The offsets in the structure are well-known in dzdma,
  12:  * an assembly routine.  We use pd_addr, not p_addr, because proc.h
  13:  * got there first.
  14:  */
  15: struct pdma {
  16:     struct  dzdevice *pd_addr;  /* address of controlling device */
  17:     char    *p_mem;         /* start of buffer */
  18:     char    *p_end;         /* end of buffer */
  19:     struct  tty *p_arg;     /* tty structure for this line */
  20: };

Defined struct's

Usage of this include