2 .\" Copyright (c) 2004 Tom Rhodes
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33 .Nd RISCom/8 multiport card
43 communications multiplexer with a built in
46 It uses a block of sixteen
48 ports in the range 0x200 to 0x3f0 selectable by on-board
50 The block must be aligned on a sixteen port boundary.
51 The jumper-selectable hardware interrupt level may be set to
52 be detected during system
53 initialization using settings found in the
54 .Pa /boot/device.hints
57 This driver is mostly based on the Cirrus Logic CL-CD180 driver.
61 driver provides support for the
67 The following driver specific error messages
70 .It "rc%d channel%d: interrupt-level buffer overflow"
71 An internal buffer overflow error has occurred on
75 driver will need to be reloaded to correct this.
76 .It "rc%d: Bad char chan %d"
77 The channel has obtained a bad set of characters.
78 .It "rc%d: Got extra chars chan %d"
81 driver got more characters than expected on the channel shown.
82 .It "rc%d: data mismatch chan %d ptr %d (%d != %d)"
83 Data sent from channel
85 to the rx buffer was different then expected.
86 .It "rc%d: channel %d command timeout, rc.c line: %d"
87 A command timeout has occurred on the channel, the
88 .Pa src/sys/dev/rc/rc.c
89 file can be consulted for more information.
102 .Pa http://www.sdlcomm.com
106 driver first appeared in
108 This manual page first appeared in
111 This manual page was written by
112 .An Tom Rhodes Aq trhodes@FreeBSD.org .
116 driver code still uses the
119 These should be replaced by
125 functions should be documented.