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NAME
     utparalleld - Sun Ray enterprise printer service daemon

SYNOPSIS
     /opt/SUNWut/lib/utparalleld   [  -D  debug-level  ]   [   -o
     optroot ]  [ -r ]

DESCRIPTION
     utparalleld provides printer support for Sun Ray appliances.
     utparalleld  supplies  driver  services for all USB parallel
     adaptors and USB printers that comply with the  USB  printer
     class.

     utparalleld uses the utparallel(7D) loopback driver to  pro-
     vide  Solaris  applications  the same interface for parallel
     ports connected to a Sun Ray appliance as standard  worksta-
     tion  ports, such as /dev/ecpp or /dev/bpp. Solaris applica-
     tions such as the lp(1) daemon can use device nodes that are
     provided by utparalleld, as described below.

     utparalleld enables standard Solaris parallel services using
     the  utparallel(7D) loopback driver. When a parallel adaptor
     or a USB printer is attached to  an  appliance,  utparalleld
     creates  device nodes in the /tmp/SUNWut/units/tid directory
     (tid = terminal id).  UTDEVROOT  points  to  this  directory
     through    a    symbolic    link.    A    user    can    use
     $UTDEVROOT/dev/printers/printer-name to  access  a  specific
     printer.

     Error messages from utparalleld are logged using  syslog(3),
     with a facility value of LOG_DAEMON.

OPTIONS
     The following options are supported:

     -D debug-level
           Debug mode. Use is beyond the scope of this document.

     -o optroot
           Use optroot for parallel service's root directory  for
           device   node   creation.   The   default   value   is
           /tmp/SUNWut. optroot should be the same  directory  as
           the optroot directory used by utdevmgrd(1M).

     -r    Automatically restart the printer service daemon if it
           exits.  With  this  option  the printer service daemon
           creates two processes: a child that performs  all  the
           actual  work,  and  a  parent  monitoring process. The
           parent process restarts a child if  the  previous  one
           exits.


ENVIRONMENT VARIABLES
     UTDEVROOT is a variable that points to a  symbolic  link  to
     the  device root for the Sun Ray appliance associated with a
     user's session.

FILES
     The following files are used:

     /tmp/SUNWut
           The customary location for temporary files used by Sun
           Ray enterprise server managers, designated by optroot.

     /tmp/SUNWut/.utdevmgr
           The named pipe used for communication between the dev-
           ice manager and device driver services.

     /tmp/SUNWut/units
           The directory containing device directories  for  each
           appliance.  The  directory  names are after the appli-
           ances' serial numbers. Each directory contains  a  dev
           directory and a devices directory.

     /tmp/SUNWut/units/tid/dev/printers
           The directory containing link to parallel device names
           for  each  appliance. tid is the unique terminal iden-
           tifier for an appliance.

     /tmp/SUNWut/sessions
           The directory containing links to  appliances  in  the
           units directory, named by X-Windows display number for
           each session. These links change as  users  move  from
           one Sun Ray appliance to another.

ATTRIBUTES
      See attributes(5) for descriptions of the following  attri-
     bute:

     ____________________________________________________________
    |       Attribute Types       |       Attribute Values      |
    | Availability                | SUNWuto                     |
    |_____________________________|_____________________________|


SEE ALSO
     utauthd(1M),    utdevmgrd(1M),    syslog(3),    syslogd(1M),
     syslog.conf(4), utparallel(7D)

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