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From: steven@uicadd.csl.uiuc.edu (Steven Parkes)
Newsgroups: comp.unix.ultrix,comp.sys.dec,comp.sys.hp
Subject: Re: LJIIID w/HP PS cart. on a DECstation 2100
Message-ID: <1991Feb12.172849.4644@roundup.crhc.uiuc.edu>
Date: 12 Feb 91 17:28:49 GMT
References: <1991Feb6.192634.29403@roundup.crhc.uiuc.edu> <1991Feb8.185045.24838@roundup.crhc.uiuc.edu>
Sender: news@roundup.crhc.uiuc.edu
Reply-To: steven@pacific.csl.uiuc.edu
Followup-To: comp.unix.ultrix
Organization: Coordinated Science Laboratory, University of Illinois
Lines: 40

I have received a patch from the DEC Support Center that speeds the response
of the DECstation to the XOFF generated by the LJ.

The following patch is to be applied to a 4.0 kernel.  I don't know if the
same patch is needed for 4.1.  I've applied it to my system and it seems to
eliminate the problem.

steven parkes ---------------------------------------
University of Illinois Coordinated Science Laboratory
steven@pacific.csl.uiuc.edu -------------------------

*** /usr/sys/machine/common/conf.c.orig	Tue Feb 12 10:46:23 1991
--- /usr/sys/machine/common/conf.c	Tue Feb 12 10:47:53 1991
***************
*** 1072,1077 ****
--- 1072,1078 ----
  
  #ifdef mips
  int	cnopen(),cnclose(),cnread(),cnwrite(),cnioctl(),cnselect();
+ int	cnstop();
  #endif mips
  
  #ifdef vax
***************
*** 1896,1902 ****
  #endif vax
  #ifdef mips
  	/* d_ttys will be filled in by cninit */
! 	cnioctl,	nulldev,	nulldev,	0, 
  	cnselect,	nodev,		0,	0},
  #endif mips
  	{dzopen, 	dzclose,	dzread, 	dzwrite,	/*1*/
--- 1897,1903 ----
  #endif vax
  #ifdef mips
  	/* d_ttys will be filled in by cninit */
! 	cnioctl,	cnstop,		nulldev,	0, 
  	cnselect,	nodev,		0,	0},
  #endif mips
  	{dzopen, 	dzclose,	dzread, 	dzwrite,	/*1*/