cups-driverd - cups driver daemon
cups-driverd cat ppd-name
cups-driverd list request_id limit options
cups-driverd shows or lists PPD files. It is run in response to CUPS-
Add-Modify-Printer or CUPS-Get-Devices requests. The first form
("cups-driverd cat ppd-name") writes the named PPD file to stdout. The
output format is an uncompressed PPD file.
The second form lists the available manufacturers or PPD files to
stdout as indicated by the options argument. The output format is an
IPP response message. The request_id argument is the request ID from
the original IPP request, typically 1. The limit argument is the limit
value from the original IPP request - 0 means no limit. Finally, the
options argument is a space-delimited list of attributes ("name=value
name=value ...") that were passed in with the request. Currently cups-
driverd looks for the ppd-make and requested-attributes attributes and
tailors the output accordingly.
Drivers can be static PPD files under the /usr/share/cups/model
directory or programs under the /usr/lib/cups/driver directory. Static
PPD files must conform to the Adobe PPD File Format Specification
version 4.3 and may be compressed using the gzip(1) program. Driver
programs must implement the command-line interface shown in the next
Driver programs provide an interface to dynamically-generated PPD
files. The following arguments are currently defined:
Lists the supported PPD files to stdout.
drivername cat ppdname
Writes the named PPD file to stdout.
LISTING FILES (drivername list)
When run with the single argument "list", the program must list the
available PPD files it can generate to stdout using the following
"drivername:ppdname" language "make" "make and model" "1284 device id"
Drivername is the name of the driver program. Ppdname is the name used
to select the given driver. Language is the locale associated with the
default language of the PPD file, typically "en". Make is the
Manufacturer name from the PPD file. Make and model is the NickName
name from the PPD file. 1284 device id is the 1284DeviceId from the PPD
file, if any.
WRITING FILES (drivername cat ppdname)
When the driver program is run with the "cat ppdname" arguments, it
must write the named PPD file to stdout, uncompressed. If the named PPD
file does not exist, the driver program must not write any output to
stdout and report the error to stderr instead.
DRIVER ERROR MESSAGES
Error messages can be relayed back to cupsd by writing them to stderr.
The following prefixes are recognized:
cupsd(8), cupsd.conf(5), cupstestppd(1),
Copyright 2007-2009 by Apple Inc.