diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c
index 1a8d4a7..4df6ab2 100644
--- a/drivers/char/rio/riocmd.c
+++ b/drivers/char/rio/riocmd.c
@@ -407,12 +407,12 @@
 		} else
 			rio_dprintk(RIO_DEBUG_CMD, "CONTROL information: This is the RUP for link ``%c'' of host ``%s''\n", ('A' + Rup - MAX_RUP), HostP->Name);
 
-		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Destination 0x%x:0x%x\n", PacketP->dest_unit, PacketP->dest_port);
-		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Source	  0x%x:0x%x\n", PacketP->src_unit, PacketP->src_port);
-		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Length	  0x%x (%d)\n", PacketP->len, PacketP->len);
-		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Control	 0x%x (%d)\n", PacketP->control, PacketP->control);
-		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Check	   0x%x (%d)\n", PacketP->csum, PacketP->csum);
-		rio_dprintk(RIO_DEBUG_CMD, "COMMAND information: Host Port Number 0x%x, " "Command Code 0x%x\n", PktCmdP->PhbNum, PktCmdP->Command);
+		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Destination 0x%x:0x%x\n", readb(&PacketP->dest_unit), readb(&PacketP->dest_port));
+		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Source	  0x%x:0x%x\n", readb(&PacketP->src_unit), readb(&PacketP->src_port));
+		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Length	  0x%x (%d)\n", readb(&PacketP->len), readb(&PacketP->len));
+		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Control	 0x%x (%d)\n", readb(&PacketP->control), readb(&PacketP->control));
+		rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Check	   0x%x (%d)\n", readw(&PacketP->csum), readw(&PacketP->csum));
+		rio_dprintk(RIO_DEBUG_CMD, "COMMAND information: Host Port Number 0x%x, " "Command Code 0x%x\n", readb(&PktCmdP->PhbNum), readb(&PktCmdP->Command));
 		return 1;
 	}
 	PortP = p->RIOPortp[SysPort];
@@ -601,7 +601,7 @@
 		/*
 		 ** Whammy! blat that pack!
 		 */
-		HostP->Copy(&CmdBlkP->Packet, RIO_PTR(HostP->Caddr, UnixRupP->RupP->txpkt), sizeof(struct PKT));
+		HostP->Copy(&CmdBlkP->Packet, RIO_PTR(HostP->Caddr, readw(&UnixRupP->RupP->txpkt)), sizeof(struct PKT));
 
 		/*
 		 ** place command packet on the pending position.
@@ -694,8 +694,8 @@
 				 */
 				rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
 				FreeMe = RIOCommandRup(p, Rup, HostP, PacketP);
-				if (PacketP->data[5] == MEMDUMP) {
-					rio_dprintk(RIO_DEBUG_CMD, "Memdump from 0x%x complete\n", *(unsigned short *) & (PacketP->data[6]));
+				if (readb(&PacketP->data[5]) == MEMDUMP) {
+					rio_dprintk(RIO_DEBUG_CMD, "Memdump from 0x%x complete\n", readw(&(PacketP->data[6])));
 					rio_memcpy_fromio(p->RIOMemDump, &(PacketP->data[8]), 32);
 				}
 				rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
@@ -782,7 +782,7 @@
 				/*
 				 ** Whammy! blat that pack!
 				 */
-				HostP->Copy(&CmdBlkP->Packet, RIO_PTR(HostP->Caddr, UnixRupP->RupP->txpkt), sizeof(struct PKT));
+				HostP->Copy(&CmdBlkP->Packet, RIO_PTR(HostP->Caddr, readw(&UnixRupP->RupP->txpkt)), sizeof(struct PKT));
 
 				/*
 				 ** remove the command from the rup command queue...
diff --git a/drivers/char/rio/riointr.c b/drivers/char/rio/riointr.c
index c05e84c..eec1fea 100644
--- a/drivers/char/rio/riointr.c
+++ b/drivers/char/rio/riointr.c
@@ -585,19 +585,19 @@
 			/*
 			 ** check that it is not a command!
 			 */
-			if (PacketP->len & PKT_CMD_BIT) {
+			if (readb(&PacketP->len) & PKT_CMD_BIT) {
 				rio_dprintk(RIO_DEBUG_INTR, "RIO: unexpected command packet received on PHB\n");
 				/*      rio_dprint(RIO_DEBUG_INTR, (" sysport   = %d\n", p->RIOPortp->PortNum)); */
-				rio_dprintk(RIO_DEBUG_INTR, " dest_unit = %d\n", PacketP->dest_unit);
-				rio_dprintk(RIO_DEBUG_INTR, " dest_port = %d\n", PacketP->dest_port);
-				rio_dprintk(RIO_DEBUG_INTR, " src_unit  = %d\n", PacketP->src_unit);
-				rio_dprintk(RIO_DEBUG_INTR, " src_port  = %d\n", PacketP->src_port);
-				rio_dprintk(RIO_DEBUG_INTR, " len	   = %d\n", PacketP->len);
-				rio_dprintk(RIO_DEBUG_INTR, " control   = %d\n", PacketP->control);
-				rio_dprintk(RIO_DEBUG_INTR, " csum	   = %d\n", PacketP->csum);
+				rio_dprintk(RIO_DEBUG_INTR, " dest_unit = %d\n", readb(&PacketP->dest_unit));
+				rio_dprintk(RIO_DEBUG_INTR, " dest_port = %d\n", readb(&PacketP->dest_port));
+				rio_dprintk(RIO_DEBUG_INTR, " src_unit  = %d\n", readb(&PacketP->src_unit));
+				rio_dprintk(RIO_DEBUG_INTR, " src_port  = %d\n", readb(&PacketP->src_port));
+				rio_dprintk(RIO_DEBUG_INTR, " len	   = %d\n", readb(&PacketP->len));
+				rio_dprintk(RIO_DEBUG_INTR, " control   = %d\n", readb(&PacketP->control));
+				rio_dprintk(RIO_DEBUG_INTR, " csum	   = %d\n", readw(&PacketP->csum));
 				rio_dprintk(RIO_DEBUG_INTR, "	 data bytes: ");
 				for (DataCnt = 0; DataCnt < PKT_MAX_DATA_LEN; DataCnt++)
-					rio_dprintk(RIO_DEBUG_INTR, "%d\n", PacketP->data[DataCnt]);
+					rio_dprintk(RIO_DEBUG_INTR, "%d\n", readb(&PacketP->data[DataCnt]));
 				remove_receive(PortP);
 				put_free_end(PortP->HostP, PacketP);
 				continue;	/* with next packet */
@@ -618,7 +618,7 @@
 			 ** and available space.
 			 */
 
-			transCount = tty_buffer_request_room(TtyP, PacketP->len & PKT_LEN_MASK);
+			transCount = tty_buffer_request_room(TtyP, readb(&PacketP->len) & PKT_LEN_MASK);
 			rio_dprintk(RIO_DEBUG_REC, "port %d: Copy %d bytes\n", PortP->PortNum, transCount);
 			/*
 			 ** To use the following 'kkprintfs' for debugging - change the '#undef'
@@ -630,12 +630,12 @@
 			tty_prepare_flip_string(TtyP, &buf, transCount);
 			rio_memcpy_fromio(buf, ptr, transCount);
 			PortP->RxDataStart += transCount;
-			PacketP->len -= transCount;
+			writeb(readb(&PacketP->len)-transCount, &PacketP->len);
 			copied += transCount;
 
 
 
-			if (PacketP->len == 0) {
+			if (readb(&PacketP->len) == 0) {
 				/*
 				 ** If we have emptied the packet, then we can
 				 ** free it, and reset the start pointer for
diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c
index 364119e..7e98835 100644
--- a/drivers/char/rio/riotable.c
+++ b/drivers/char/rio/riotable.c
@@ -546,11 +546,11 @@
 								 ** accessed from the driver.
 								 */
 								Pkt = (struct PKT __iomem *) RIO_PTR(HostP->Caddr, readw(&*TxPktP));
-								rio_dprintk(RIO_DEBUG_TABLE, "Tx packet (%x) destination: Old %x:%x New %x:%x\n", *TxPktP, Pkt->dest_unit, Pkt->dest_port, dest_unit, dest_port);
+								rio_dprintk(RIO_DEBUG_TABLE, "Tx packet (%x) destination: Old %x:%x New %x:%x\n", readw(TxPktP), readb(&Pkt->dest_unit), readb(&Pkt->dest_port), dest_unit, dest_port);
 								writew(dest_unit, &Pkt->dest_unit);
 								writew(dest_port, &Pkt->dest_port);
 							}
-							rio_dprintk(RIO_DEBUG_TABLE, "Port %d phb destination: Old %x:%x New %x:%x\n", port, PortP->PhbP->destination & 0xff, (PortP->PhbP->destination >> 8) & 0xff, dest_unit, dest_port);
+							rio_dprintk(RIO_DEBUG_TABLE, "Port %d phb destination: Old %x:%x New %x:%x\n", port, readb(&PortP->PhbP->destination) & 0xff, (readb(&PortP->PhbP->destination) >> 8) & 0xff, dest_unit, dest_port);
 							writew(dest_unit + (dest_port << 8), &PortP->PhbP->destination);
 						}
 						rio_spin_unlock_irqrestore(&PortP->portSem, sem_flags);