Correct reference to master port:
really it is last port on card, not first.
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@ -34,7 +34,7 @@
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.\"
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.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91
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.\" from: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp
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.\" $Id: sio.4,v 1.8 1994/02/19 15:50:38 ache Exp $
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.\" $Id: sio.4,v 1.9 1994/03/18 13:40:01 ache Exp $
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.\"
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.Dd February 9, 1994
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.Dt SIO 4 i386
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@ -52,10 +52,10 @@ For standard ports:
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.sp
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For multiport cards:
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.Cd "options" \&"COM_MULTIPORT\&"
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.Cd "device sio4 at isa? port 0x2a0 tty irq 12 flags 0x401 vector siointr"
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.Cd "device sio5 at isa? port 0x2a8 tty flags 0x401 vector siointr"
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.Cd "device sio6 at isa? port 0x2b0 tty flags 0x401 vector siointr"
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.Cd "device sio7 at isa? port 0x2b8 tty flags 0x401 vector siointr"
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.Cd "device sio4 at isa? port 0x2a0 tty irq 12 flags 0x701 vector siointr"
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.Cd "device sio5 at isa? port 0x2a8 tty flags 0x701 vector siointr"
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.Cd "device sio6 at isa? port 0x2b0 tty flags 0x701 vector siointr"
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.Cd "device sio7 at isa? port 0x2b8 tty flags 0x701 vector siointr"
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.sp
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For bidirectional use of ports:
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.Cd "options" \&"COM_BIDIR\&"
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@ -114,8 +114,8 @@ imply that more than one port group (or card) can share
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the same physical interrupt line!
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.Pp
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In the synopsis the
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.Nm flags 0x401
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means that the 5th port (sio4) is the master
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.Nm flags 0x701
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means that the 8th port (sio7) is the master
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device (so the MSB of the flags), and that the ports are part of a
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multiport card (the LSB of the flags, actually only the LS
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.Nm bit
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@ -124,9 +124,9 @@ F.e. if you have only two standard ports in addition to multiport
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card, this
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.Nm flags
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will be
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.Nm 0x201
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.Nm 0x501
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(assuming the control port is
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.Nm sio2
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.Nm sio5
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).
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.Pp
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Which port is the master device depends on the card type. Consult
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@ -34,7 +34,7 @@
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.\"
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.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91
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.\" from: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp
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.\" $Id: sio.4,v 1.8 1994/02/19 15:50:38 ache Exp $
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.\" $Id: sio.4,v 1.9 1994/03/18 13:40:01 ache Exp $
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.\"
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.Dd February 9, 1994
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.Dt SIO 4 i386
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@ -52,10 +52,10 @@ For standard ports:
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.sp
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For multiport cards:
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.Cd "options" \&"COM_MULTIPORT\&"
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.Cd "device sio4 at isa? port 0x2a0 tty irq 12 flags 0x401 vector siointr"
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.Cd "device sio5 at isa? port 0x2a8 tty flags 0x401 vector siointr"
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.Cd "device sio6 at isa? port 0x2b0 tty flags 0x401 vector siointr"
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.Cd "device sio7 at isa? port 0x2b8 tty flags 0x401 vector siointr"
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.Cd "device sio4 at isa? port 0x2a0 tty irq 12 flags 0x701 vector siointr"
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.Cd "device sio5 at isa? port 0x2a8 tty flags 0x701 vector siointr"
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.Cd "device sio6 at isa? port 0x2b0 tty flags 0x701 vector siointr"
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.Cd "device sio7 at isa? port 0x2b8 tty flags 0x701 vector siointr"
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.sp
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For bidirectional use of ports:
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.Cd "options" \&"COM_BIDIR\&"
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@ -114,8 +114,8 @@ imply that more than one port group (or card) can share
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the same physical interrupt line!
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.Pp
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In the synopsis the
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.Nm flags 0x401
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means that the 5th port (sio4) is the master
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.Nm flags 0x701
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means that the 8th port (sio7) is the master
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device (so the MSB of the flags), and that the ports are part of a
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multiport card (the LSB of the flags, actually only the LS
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.Nm bit
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@ -124,9 +124,9 @@ F.e. if you have only two standard ports in addition to multiport
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card, this
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.Nm flags
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will be
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.Nm 0x201
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.Nm 0x501
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(assuming the control port is
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.Nm sio2
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.Nm sio5
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).
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.Pp
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Which port is the master device depends on the card type. Consult
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