1.\"
2.\" Copyright (c) 1994 Wilko Bulte
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright
9.\" notice, this list of conditions and the following disclaimer.
10.\" 2. Redistributions in binary form must reproduce the above copyright
11.\" notice, this list of conditions and the following disclaimer in the
12.\" documentation and/or other materials provided with the distribution.
13.\" 3. The name of the author may not be used to endorse or promote products
14.\" derived from this software without specific prior written permission
15.\"
16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26.\"
| 1.\"
2.\" Copyright (c) 1994 Wilko Bulte
3.\" All rights reserved.
4.\"
5.\" Redistribution and use in source and binary forms, with or without
6.\" modification, are permitted provided that the following conditions
7.\" are met:
8.\" 1. Redistributions of source code must retain the above copyright
9.\" notice, this list of conditions and the following disclaimer.
10.\" 2. Redistributions in binary form must reproduce the above copyright
11.\" notice, this list of conditions and the following disclaimer in the
12.\" documentation and/or other materials provided with the distribution.
13.\" 3. The name of the author may not be used to endorse or promote products
14.\" derived from this software without specific prior written permission
15.\"
16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26.\"
|
27.\" $FreeBSD: head/share/man/man4/ahb.4 131570 2004-07-04 14:17:41Z simon $
| 27.\" $FreeBSD: head/share/man/man4/ahb.4 158762 2006-05-20 09:39:28Z brueffer $
|
28.\"
29.Dd July 4, 2004
30.Dt AHB 4
31.Os
32.Sh NAME
33.Nm ahb
34.Nd Adaptec EISA SCSI host adapter driver
35.Sh SYNOPSIS
| 28.\"
29.Dd July 4, 2004
30.Dt AHB 4
31.Os
32.Sh NAME
33.Nm ahb
34.Nd Adaptec EISA SCSI host adapter driver
35.Sh SYNOPSIS
|
36.Cd device ahb
37.Cd device scbus
| 36To compile this driver into the kernel,
37place the following lines in your
38kernel configuration file:
39.Bd -ragged -offset indent
40.Cd "device scbus"
41.Cd "device ahb"
42.Ed
43.Pp
44Alternatively, to load the driver as a
45module at boot time, place the following line in
46.Xr loader.conf 5 :
47.Bd -literal -offset indent
48ahb_load="YES"
49.Ed
|
38.Sh DESCRIPTION
39This driver provides access to the
40.Tn SCSI
41bus connected to an Adaptec
42AHA-174X host adapters in
43.Dq Em enhanced
44mode.
45Tagged queueing and synchronous SCSI transfers are supported.
46.Sh HARDWARE
47The
48.Nm
49driver supports the following SCSI host adapters:
50.Pp
51.Bl -bullet -compact
52.It
53Adaptec AHA-1740
54.It
55Adaptec AHA-1742
56.It
57Adaptec AHA-1740A
58.It
59Adaptec AHA-1742A
60.El
61.Sh CAVEATS
62The Adaptec 174X is very sensitive to SCSI bus termination and cable
63length.
64It may also have difficulties operating with some modern devices
65that, due to their speed, expose timing problems in the controller.
66There are no known mechanisms for working around device incompatibilities of
67this nature.
68.Sh SEE ALSO
69.Xr aha 4 ,
70.Xr ahc 4 ,
71.Xr aic 4 ,
72.Xr cd 4 ,
73.Xr da 4 ,
74.Xr sa 4 ,
75.Xr scsi 4
76.Sh AUTHORS
77The
78.Nm
79driver was written by
80.An Justin T. Gibbs .
| 50.Sh DESCRIPTION
51This driver provides access to the
52.Tn SCSI
53bus connected to an Adaptec
54AHA-174X host adapters in
55.Dq Em enhanced
56mode.
57Tagged queueing and synchronous SCSI transfers are supported.
58.Sh HARDWARE
59The
60.Nm
61driver supports the following SCSI host adapters:
62.Pp
63.Bl -bullet -compact
64.It
65Adaptec AHA-1740
66.It
67Adaptec AHA-1742
68.It
69Adaptec AHA-1740A
70.It
71Adaptec AHA-1742A
72.El
73.Sh CAVEATS
74The Adaptec 174X is very sensitive to SCSI bus termination and cable
75length.
76It may also have difficulties operating with some modern devices
77that, due to their speed, expose timing problems in the controller.
78There are no known mechanisms for working around device incompatibilities of
79this nature.
80.Sh SEE ALSO
81.Xr aha 4 ,
82.Xr ahc 4 ,
83.Xr aic 4 ,
84.Xr cd 4 ,
85.Xr da 4 ,
86.Xr sa 4 ,
87.Xr scsi 4
88.Sh AUTHORS
89The
90.Nm
91driver was written by
92.An Justin T. Gibbs .
|