xref: /plan9/sys/src/cmd/postscript/postio/README (revision 7dd7cddf99dd7472612f1413b4da293630e6b1bc)
1Serial communications program for PostScript printers.
2
3Runs as a single read/write process (by default). Use the -R2 option
4or set splitme to TRUE (file postio.c) to get separate read and write
5processes. Although not the default, we recommend using separate read
6and write processes.
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8Sends occasional status queries (control Ts) while transmitting files.
9Use the -q option or set quiet (file postio.c) to TRUE to disable status
10queries.
11
12Datakit connections are supported on System V and Ninth Edition systems.
13The syntax (for connecting to a Datakit destination) varies. Check the
14SYSV and V9 versions of setupline() in file ifdef.c.
15
16Set DKHOST and DKSTREAMS to TRUE in postio.mk for streams based DKHOST
17support. When DKSTREAMS is TRUE postio.mk uses "dknetty" as the stream
18module. Settings like DKSTREAMS=dkty select a different stream module
19and may be required for full Datakit support on some systems.
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