ioprod man page on BSDOS

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IOPROD(8)		  BSD System Manager's Manual		     IOPROD(8)

NAME
     ioprod - Chase Research IOPRO/IOLITE download and configuration daemon

SYNOPSIS
     ioprod card

DESCRIPTION
     Ioprod is a simple daemon responsible for monitoring the power status on
     IOPRO and IOLITE units. At system startup an instance of the daemon is
     started to each IOPRO of IOLITE host card in the system, the one argument
     being the card number to monitor.

     When power is detected the number of units available is determined and
     the units downloaded. Once download is complete ioprod will carry out a
     configuration dialogue with each unit determining the number of ports
     available and matching them with devices in /dev.

     Until a device in /dev has been matched with a physical line on an IOPRO
     or IOLITE unit any attempt to access the line will either block waiting
     for the device to be made available or fail with the error code EAGAIN.

     If power is lost at any time ioprod will inform the device driver to
     abort any existing operations and will resume the waiting for power to be
     applied.

     Some applications do not understand the idea of serial devices being tem-
     porarily unavailable and get confused by the EAGAIN response from a non-
     blocking open. The support utility iopro_wait(8) provides a partial solu-
     tion to this problem.

FILES
     /var/log/ioprod_#	 Operation log file /usr/libdata/iopro.dl    Unit
     download image /dev/iopro/*   Card control files /dev/tty[4-Z][a-p]  Data
     ports

SEE ALSO
     iopro_dload(8) iopro_wait(8)

DIAGNOSTICS
     Console message should be self explanatory.

     If the file /var/log/ioprod_# exists ( where # is the card number ) and
     is writable then ioprod will append operational logging information to
     this file.

BUGS
     Since IOLITE cards are powered from the host and can't be powered down
     independently, ioprod should terminate once the download and configura-
     tion sequence has been completed.

 BSD/OS				   28 Jul 95				     1
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