2 .\" Copyright (c) 2004 Tom Rhodes
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33 .Nd RISCom/8 multiport card
40 driver provides support for the
50 communications multiplexor with a built in
53 It uses a block of sixteen
55 ports in the range 0x200 to 0x3f0 selectable by on-board
57 The block must be aligned on a sixteen port boundary.
58 The jumper-selectable hardware interrupt level may be set to
59 be detected during system
60 initialization using settings found in the
61 .Pa /boot/device.hints
64 This driver is mostly based on Cirrus Logic CL-CD180 driver.
66 The following driver specific error messages
70 May be returned if the device was busy when a
71 request to access its resources was made by
75 May be returned if the
77 driver was unable to obtain the
81 May be returned if the device cannot obtain a valid
85 This error may also be returned if the
87 function cannot obtain a valid
101 .Pa http://www.sdlcomm.com
105 driver first appeared in
107 This manual page first appeared in
110 This manual page was written by
111 .An Tom Rhodes Aq trhodes@FreeBSD.org .
115 driver code still uses the
118 These should be replaced by
124 functions should be documented.