From 9124cd1f10d0b1c3edd58d687a260463d37f4fc0 Mon Sep 17 00:00:00 2001
From: KATO Takenori <kato@FreeBSD.org>
Date: Fri, 17 Jan 1997 14:43:34 +0000
Subject: [PATCH] Disabled LPC_ENA related I/O access.  This I/O access
 clobbers i8255 mode register on PC98.

---
 sys/pc98/pc98/lpt.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sys/pc98/pc98/lpt.c b/sys/pc98/pc98/lpt.c
index e78f41a02c3..bea6e78f04e 100644
--- a/sys/pc98/pc98/lpt.c
+++ b/sys/pc98/pc98/lpt.c
@@ -991,6 +991,10 @@ lpioctl (struct ifnet *ifp, int cmd, caddr_t data)
 	    ifp->if_flags &= ~IFF_RUNNING;
 	    break;
 	}
+#ifdef PC98
+	/* XXX */
+	return ENOBUFS;
+#else
 	if (((ifp->if_flags & IFF_UP)) && (!(ifp->if_flags & IFF_RUNNING))) {
 	    if (lpinittables())
 		return ENOBUFS;
@@ -1003,7 +1007,7 @@ lpioctl (struct ifnet *ifp, int cmd, caddr_t data)
 	    ifp->if_flags |= IFF_RUNNING;
 	}
 	break;
-
+#endif
     case SIOCSIFMTU:
 	ptr = sc->sc_ifbuf;
 	sc->sc_ifbuf = malloc(ifr->ifr_mtu+MLPIPHDRLEN, M_DEVBUF, M_NOWAIT);
@@ -1264,8 +1268,10 @@ lpoutput (struct ifnet *ifp, struct mbuf *m,
 
     s = splhigh();
 
+#ifndef PC98
     /* Suspend (on laptops) or receive-errors might have taken us offline */
     outb(lpt_ctrl_port, LPC_ENA);
+#endif
 
     if (ifp->if_flags & IFF_LINK0) {