Changes between Initial Version and Version 1 of UsersGuide/Printing

Timestamp:

2018-12-11T13:22:59Z (5 years ago)

Author:

Jiri Svoboda

Comment:

Printing chapter

UsersGuide/Printing

@@ +1 @@
+= Printing in HelenOS =
+
+Rudimentary printing support was introduced in HelenOS 0.8.0. There is now a standard PC parallel port driver (pc-lpt) and the system will detect standard printer ports at addresses 0x378 and 0x278.
+
+== Hadware setup ==
+
+You need a PC with standard PC parallel port at 0x378 or 0x278. USB-parallel dongle will not work.
+
+Qemu can be configured with parallel port emulation
+ * To redirect emulated parallel port output to a file on the host you can use {{{-device isa-parallel,chardev=foo -chardev file,id=foo,path=/tmp/myfile.txt}}}
+ * To redirect emulated parallel port to a real parallel port on the host you can use {{{-device isa-parallel,chardev=foo -chardev parallel,id=foo,path=/dev/lpN}}}.
+
+== Software configuration and usage ==
+
+To check whether your system has any printer ports:
+
+{{{
+/ # loc show-cat printer-port
+printer-port:
+        devices/\hw\sys\00:01.0\lpt1\a : devman
+/ # 
+}}}
+
+The {{{lprint}}} utility allows printing files or short messages. The {{{-d}}} option can be
+used to pass the device which should be used for printing. The option can be omitted in which
+case it will print to the default printer (currently the default printer selection is arbitrary and
+cannot be configured).
+
+To print a short message:
+
+{{{
+/ # lprint -m Hello world!
+}}}
+
+To print a file:
+{{{
+/ # lprint demo.txt
+}}}
+
+(Most printers probably don't accept UTF-8, though).
+
+{{{#!box type=note
+There is no actual configuration or driver for the printer. You need to send data that the printer can understand. Most printers will accept ASCII or ISO-8859-1 plain text. Some printers may accept !PostScript.
+}}}