spif(4) [netbsd man page]
SPIF(4) BSD Kernel Interfaces Manual SPIF(4) NAME
spif -- SBus (spiffy) Serial/Parallel Interface SYNOPSIS
spif* at sbus? slot ? offset ? (sun4c/sun4m/sun4u) stty* at spif? (sun4c/sun4m/sun4u) sbpp* at spif? (sun4c/sun4m/sun4u) DESCRIPTION
The spif driver provides support for the Sun Serial/Parallel Interface card (Sun part number 501-1931), which is based on the Cirrus Logic CD180 octal serial controller and the Cirrus Logic PPC2 parallel port controller. The device minor numbers for this driver are encoded as follows: +---+---+---+---+---+---+---+---+ | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | +---+---+---+---+---+---+---+---+ | | | | | | | | | | | | | +---+---+---> port number | | | | | | | | | +---------------> unused | | | | | | | +-------------------> dial-out (on tty ports) | | | | | +-----------------------> unused | | +---+---------------------------> card number Up to four cards are supported in the system. Each of the serial ports has an 8 byte FIFO for receive and transmit as well as automatic hardware (RTS/CTS) flow control. FILES
/dev/ttyS[0123][0-7] Serial ports /dev/bppS[0-3] Parallel ports DIAGNOSTICS
spif%d: ccr timeout A timeout occurred while writing to one of the CD180 registers. stty%d-%d: ring overflow Incoming characters were discarded because the application in control of the device did not read the input fast enough. SEE ALSO
intro(4), sbus(4), tty(4) HISTORY
The spif adapter was first supported in OpenBSD 2.5. The driver was ported to NetBSD 3.0. AUTHORS
The driver was written by Jason Wright <jason@thought.net>, and is heavily based on the magma(4) driver written by Iain Hibbert. TODO
The parallel port is not supported yet. Dial-out (cua) devices are not yet supported. BSD
February 4, 1999 BSD
Check Out this Related Man Page
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