49 lines
1.9 KiB
Plaintext
49 lines
1.9 KiB
Plaintext
$OpenBSD: README,v 1.6 2011/03/09 13:05:20 ajacoutot Exp $
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Using CUPS under OpenBSD
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========================
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If you want to print to non-Postscript printers or use CUPS bundled PPD
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files (i.e. drivers), you'll need to install ghostscript. You will also
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most probably want to install the foomatic-filters package which
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provides a universal filter script.
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Depending on your printer model you may need to install some driver
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package like (non-exhaustive list): hplip, gutenprint, foo2zjs, splix...
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To be able to use CUPS printers from gtk+2 applications, the gtk+2-cups
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package needs to be installed.
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This package supports both ulpt(4) and libusb for printing to USB
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devices. ulpt(4) should work out of the box, however:
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* ulpt(4) does not support select() which is used by CUPS to know when
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the device can accept more data (http://www.cups.org/str.php?L3028)
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* it won't be able to automatically detect the corresponding driver/PPD
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* it is deprecated upstream in favor of libusb
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Required steps for libusb based printing
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----------------------------------------
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If you choose to make your USB printer use libusb, you need to allow the
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_cups user access to the corresponding USB endpoint. To do so, find
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where your printer is attached to using `sudo usbdevs -vd` then change
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the ownerships accordingly.
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e.g.
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Controller /dev/usb3:
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addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x8086), rev 1.00
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uhub3
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port 1 powered
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port 2 addr 2: full speed, self powered, config 1, USB MFP(0x082f), EPSON(0x04b8), rev 1.00, iSerialNumber L83010704250947490
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ulpt0
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ugen0
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$ sudo chown _cups /dev/ugen0.* /dev/usb3
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The reason we are changing the user and not the group is that it will
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allow for multi-function devices to work for both printing and scanning
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(e.g. by being owned by _cups:_saned).
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To preserve your changes after a system update, use rc.local(8).
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e.g. for a multi-function printer/scanner add the following lines:
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chown _cups:_saned /dev/ugen0.* /dev/usb1
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