1 .\" $NetBSD: ioat.4,v 1.5 2003/08/07 10:31:02 agc Exp $
3 .\" Copyright (c) 1990, 1991 The Regents of the University of California.
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6 .\" This code is derived from software contributed to Berkeley by
7 .\" the Systems Programming Group of the University of Utah Computer
8 .\" Science Department.
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17 .\" 3. Neither the name of the University nor the names of its contributors
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21 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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33 .\" from: NetBSD: boca.4,v 1.3 1999/03/16 01:19:15 garbled Exp
34 .\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91
35 .\" from: Id: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp
43 multiplexing serial communications interface
45 For 6-port BOCA IOAT66 board:
47 .Cd "ioat0 at isa? port 0x220 irq 5"
48 .Cd "com2 at ioat? slave ?"
49 .Cd "com3 at ioat? slave ?"
50 .Cd "com4 at ioat? slave ?"
51 .Cd "com5 at ioat? slave ?"
52 .Cd "com6 at ioat? slave ?"
53 .Cd "com7 at ioat? slave ?"
57 driver provides support for BOCA Research IOAT66
58 boards that multiplex together up to six
63 communications interfaces.
67 device is the master device for up to six
69 devices. The kernel configuration specifies these
71 devices as slave devices of the
73 device, as shown in the synopsis. The slave ID given for each
75 device determines which bit in the interrupt multiplexing register is
76 tested to find interrupts for that device.
81 device is used to compute the base addresses for the
83 subdevices. The port for the interrupt multiplexing register is not
94 driver was adapted from the boca driver by Michael Richardson.