Standalone Point-of-Sales System for Garfield
C Makefile
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displayd Current status (v0.2) Mar 29, 2014
frontend Fix output bug that has just now manifested Jan 19, 2017
kbserver @ f8708a3 kbserver as submodule Nov 15, 2014
.gitmodules kbserver as submodule Nov 15, 2014
README.txt readme Apr 7, 2014 Current status (v0.2) Mar 29, 2014
flow.png Current status (v0.2) Mar 29, 2014
scancode.c Current status (v0.2) Mar 29, 2014 fix diagram Nov 18, 2014
system.png fix diagram Nov 18, 2014


The garfield-pos project is an implementation of a stand-alone
interactive interface to the Garfield database backend.
It fetches input generated by multiple kbserver instances
(see kbserver/) such as Numpads and Barcode scanners, and
feeds that input to a state machine implementing basic
shopping cart and checkout functionalities.

The frontend/ folder contains the main logic implementation.
The kbserver/ folder contained the evdev input server, but the
project has since moved to its own repository (For further information,
consult the readme in there).
The displayd/ folder contains code for interfacing a vaccuum fluorescence
POS display (directly piping the frontend output to a serial port is also

A simplified graph of the state machine can be found in
flow.png, as well a more abstract system graph in system.png

The latest version of garfield-pos can be found at

Build prerequisites
	See respective folders

	- Compile the needed components (kbserver, frontend, displayd)
	- Create configuration files for each component (see the respective
	- Run the auxiliary providers (kbserver, displayd) first
	- Then start the frontend instance