.\" .\" "$Id: cups-driverd.man.in 9419 2011-01-06 18:49:38Z mike $" .\" .\" cups-driverd man page for CUPS. .\" .\" Copyright 2007-2011 by Apple Inc. .\" Copyright 1997-2006 by Easy Software Products. .\" .\" These coded instructions, statements, and computer programs are the .\" property of Apple Inc. and are protected by Federal copyright .\" law. Distribution and use rights are outlined in the file "LICENSE.txt" .\" which should have been included with this file. If this file is .\" file is missing or damaged, see the license at "http://www.cups.org/". .\" .TH cups-driverd 8 "CUPS" "6 January 2011" "Apple Inc." .SH NAME cups-driverd \- cups driver daemon .SH SYNOPSIS .B cups-driverd cat .I ppd-name .br .B cups-driverd list .I request_id limit options .SH DESCRIPTION \fIcups-driverd\fR 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. .LP The second form lists the available manufacturers or PPD files to stdout as indicated by the \fIoptions\fR argument. The output format is an IPP response message. The \fIrequest_id\fR argument is the request ID from the original IPP request, typically 1. The \fIlimit\fR argument is the limit value from the original IPP request - 0 means no limit. Finally, the \fIoptions\fR argument is a space-delimited list of attributes ("name=value name=value \&...") that were passed in with the request. Currently \fIcups-driverd\fR looks for the \fIppd-make\fR and \fIrequested-attributes\fR attributes and tailors the output accordingly. .SH DRIVERS Drivers can be static PPD files under the \fI/usr/share/cups/model\fR directory or programs under the \fI/usr/lib/cups/driver\fR directory. Static PPD files must conform to the Adobe PPD File Format Specification version 4.3 and may be compressed using the \fIgzip(1)\fR program. Driver programs must implement the command-line interface shown in the next section. .SS DRIVER PROGRAMS Driver programs provide a interface to dynamically-generated PPD files. The following arguments are currently defined: .TP 5 drivername list .br Lists the supported PPD files to stdout. .TP 5 drivername cat ppdname .br Writes the named PPD file to stdout. .PP Driver programs MUST NOT query hardware or make other long-term operations that would delay the return of a driver list. See the NOTES section below for specific recommendations. .SS 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 format: .nf "drivername:ppdname" language "make" "make and model" "drivername:ppdname" language "make" "make and model" "1284 device id" "drivername:ppdname" language "make" "make and model" "1284 device id" "(PPD product)" "drivername:ppdname" language "make" "make and model" "1284 device id" "(PPD product)" "PostScript version" "drivername:ppdname" language "make" "make and model" "1284 device id" "(PPD product)" "PostScript version" "type" .fi .LP \fIDrivername\fR is the name of the driver program. \fIPpdname\fR is the name used to select the given driver. \fILanguage\fR is the locale associated with the default language of the PPD file, typically "en". \fIMake\fR is the Manufacturer name from the PPD file. \fIMake and model\fR is the NickName name from the PPD file. \fI1284 device id\fR is the 1284DeviceId from the PPD file, if any. \fI(PPD product)\fR is the Product string as it would appear in the PPD file or from a PostScript query. \fIPostScript version\fR is the PSVersion string as it would appear in the PPD file or from a PostScript query. \fIType\fR is "postscript" for PostScript printers, "pdf" for PDF printers, "raster" for raster printers, or "fax" for facsimile devices. .SS 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. .SS DRIVER ERROR MESSAGES Error messages can be relayed back to \fIcupsd\fR by writing them to stderr. The following prefixes are recognized: .TP 5 DEBUG: [drivername] .br Debugging messages .TP 5 ERROR: [drivername] .br Error messages .TP 5 INFO: [drivername] .br Informational messages .SH NOTES Due to performance considerations, driver programs have been officially deprecated and should not be used for new development. Currently only the CUPS web interface and \fIlpinfo(8)\fR command will request lists from all driver programs. .SH SEE ALSO cupsd(8), cupsd.conf(5), cupstestppd(1), lpinfo(8), .br http://localhost:631/help .SH COPYRIGHT Copyright 2007-2011 by Apple Inc. .\" .\" End of "$Id: cups-driverd.man.in 9419 2011-01-06 18:49:38Z mike $". .\"