guide: scanning on openbsd with sane, as non-root user

SCANNING ON OPENBSD WITH SANE, AS NON-ROOT USER

foreword: wanted to put this guide somewhere


install sane:

# pkg_add sane


plug in the scanner, and immediately after, run this command:

# dmesg | tail -20
ugen0 at uhub0 port 3 "<scanner name>"

the output should appear as above


now take a note of the number after 'ugen' and the number after
'uhub'. in this example that number is 0 for both.

now to get a bit more info on the hardware, run:

# usbdevs
Controller /dev/usb0:
addr 01: ____
addr 02: XXXX:YYYY <scanner name>

the output should appear as above


so say we want to scan as the user 'theo', then theo needs access to
both /dev/usb0 as well as /dev/ugen0.00

so execute the following command

# chgrp theo /dev/ugen0.* /dev/usb0
# chmod g+rwx /dev/ugen0.* /dev/usb0


now run, as theo:

$ scanimage -L
device '____:libusb:000:002' is a <scanner name> scanner

the output should now show the scanner, as above


to scan:

$ scanimage -d '____:libusb:000:002' -f jpeg --mode Color


to get scanner-specific options:

$ scanimage -h