RC(4) BSD Kernel Interfaces Manual RC(4)NAME
rc -- RISCom/8 multiport card
SYNOPSIS
device isa
device rc
DESCRIPTION
The RISCom/8 is an eight port ISA RS-232C communications multiplexer with a built in RISC processor. It uses a block of sixteen I/O ports in
the range 0x200 to 0x3f0 selectable by on-board switches or jumpers. The block must be aligned on a sixteen port boundary. The jumper-
selectable hardware interrupt level may be set to be detected during system initialization using settings found in the /boot/device.hints
file.
This driver is mostly based on the Cirrus Logic CL-CD180 driver.
HARDWARE
The rc driver provides support for the SDL Communications RISCom/8 boards.
DIAGNOSTICS
The following driver specific error messages may be reported:
rc%d channel%d: interrupt-level buffer overflow An internal buffer overflow error has occurred on the listed channel. The rc driver will
need to be reloaded to correct this.
rc%d: Bad char chan %d The channel has obtained a bad set of characters.
rc%d: Got extra chars chan %d The rc driver got more characters than expected on the channel shown.
rc%d: data mismatch chan %d ptr %d (%d != %d) Data sent from channel %d to the rx buffer was different then expected.
rc%d: channel %d command timeout, rc.c line: %d A command timeout has occurred on the channel, the src/sys/dev/rc/rc.c file can be consulted
for more information.
SEE ALSO tty(1), ttyname(3), sio(4), tty(4), device.hints(5), comcontrol(8), getty(8), mutex(9), splx(9)
http://www.sdlcomm.com
HISTORY
The rc driver first appeared in FreeBSD 2.0.5. This manual page first appeared in FreeBSD 5.3.
AUTHORS
This manual page was written by Tom Rhodes <trhodes@FreeBSD.org>.
BUGS
The rc driver code still uses the spl(9) functions. These should be replaced by mutex(9) functions.
The various ttyld_*() functions should be documented.
BSD March 18, 2005 BSD
Check Out this Related Man Page
CX(4) BSD/i386 Kernel Interfaces Manual CX(4)NAME
cx -- driver for synchronous/asynchronous Cronyx Sigma WAN adapters
SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:
device cx
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_cx_load="YES"
Additional options:
device sppp
options NETGRAPH
options NETGRAPH_CRONYX
In /boot/device.hints:
hint.cx.0.at="isa"
hint.cx.0.port="0x240"
hint.cx.0.irq="15"
hint.cx.0.drq="7"
DESCRIPTION
The cx driver needs either sppp(4) or netgraph(4). Which one to use is determined by the NETGRAPH_CRONYX option. If this option is present
in your kernel configuration file, the cx driver will be compiled with netgraph(4) support. Otherwise, it will be compiled with sppp(4) sup-
port.
The base I/O port address specified in /boot/device.hints must match the port address set by the jumpers on the board. The DMA I/O channel
and interrupt request numbers are configured by software at adapter initialization. Legal values are:
Port: 0x240, 0x260, 0x280, 0x300, 0x320, 0x380
IRQ: 3, 5, 7, 10, 11, 12, 15
DMA: 5, 6, 7
The cx driver supports autodetection. As for all non-PNP hardware, using autodetection could lead to some potential problems with other
devices during the hardware detection process. It is always better to specify hardware resources manually.
Refer to sconfig(8) for information about the cx adapter configuration.
HARDWARE
The cx driver supports the following cards:
o Cronyx Sigma-22, Sigma-24
o Cronyx Sigma-100
o Cronyx Sigma-400, Sigma-401, Sigma-404, Sigma-410, Sigma-440
o Cronyx Sigma-500
o Cronyx Sigma-703
o Cronyx Sigma-800, Sigma-801, Sigma-810, Sigma-840
SEE ALSO cp(4), ctau(4), sppp(4), ifconfig(8), sconfig(8), spppcontrol(8)HISTORY
The cx driver was updated in FreeBSD 5.2 and FreeBSD 4.10. In most of the previous versions of FreeBSD the cx driver is out of date. The cx
driver for previous versions of FreeBSD is available from http://www.cronyx.ru/.
BSD July 16, 2005 BSD