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rc (4)
  • rc (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • >> rc (4) ( FreeBSD man: Специальные файлы /dev/* )
  • rc (8) ( FreeBSD man: Команды системного администрирования )

  • BSD mandoc
     

    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 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 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 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.hints5, comcontrol(8), getty(8), mutex(9), splx(9)

    http://www.sdlcomm.com  

    HISTORY

    The driver first appeared in Fx 2.0.5 . This manual page first appeared in Fx 5.3 .  

    AUTHORS

    This manual page was written by An Tom Rhodes Aq trhodes@FreeBSD.org .  

    BUGS

    The driver code still uses the spl(9) functions. These should be replaced by mutex(9) functions.

    The various ttyld_ (*);
    functions should be documented.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    HARDWARE
    DIAGNOSTICS
    SEE ALSO
    HISTORY
    AUTHORS
    BUGS


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