A small printer daemon intended for diskless platforms that does not spool to disk but passes the job directly to the printer. Normally a lpr daemon on a spooling host connects to it with a TCP connection on port 910n (where n=0, 1, or 2 for lp0, 1 and 2 respectively).
p910nd is particularly useful for diskless platforms. Common Unix Printing System (CUPS) supports this protocol, it's called the AppSocket protocol and has the scheme
socket://remotehost:PORT
Windows and Mac Os X (via CUPS) also supports this protocol.
You need to allow p910nd access to the usb printer by connecting the raw-usb snap interface
snap connect p910nd-ogra:raw-usb
... else the daemon will not start.
optionally you can configure the following settings though snap set commands:
snap set p910nd-ogra device="/dev/usb/lp0"
snap set p910nd-ogra bindaddr="192.168.1.5"
additionally enabling/disabling bidirectional communication can be done with:
snap set p910nd-ogra bidirectional=true
snap set p910nd-ogra bidirectional=''
Note: some printers tend to automatically suspend the USB bus, to prevent /dev/usb/lp* from going away after a while, set usbcore.autosuspend=0 on your kernel cmdline.
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
If you’re running Ubuntu 16.04 LTS (Xenial Xerus) or later, including Ubuntu 18.04 LTS (Bionic Beaver) and Ubuntu 20.04 LTS (Focal Fossa), you don’t need to do anything. Snap is already installed and ready to go.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install p910nd-ogra, simply use the following command:
sudo snap install p910nd-ogra --edge
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.
