In some cases, the description fails (unknow printer, udev issues,...) and while
the printer works fine, the description fails.
This is a cherry pick of 994d45f4 to 8.0 (as the posbox is built on top of it)
Some printers (e.g. matrix/impact printers) may have a hard time
keeping up with the text output, and may trigger timeout errors
because of this, even though they would otherwise produce a correct
result.
Increasing the default timeout to 5s (from the default 1s) should
take care of most slow printers out there.
Instead of hardcoding the IN & OUT endpoint
addresses for the ESC/POS printers, we now
attempt to auto-detect them.
This should increase compatibility with many
compatible thermal printers that are simply
using a different address, such as the
- STMicroelectronics POS58 Printer USB
- HU HAI SUNCSW Receipt Printer Co.,Ltd. Gprinter USB Printer
Fixes#12890
Usually when setting up a POSBox you want it to have a static IP. The
best way to do that is by configuring whatever DHCP server is
used (usually just on the router) to always assign the same IP to a
certain MAC address (naming depends on what is being used, sometimes
it's called static DHCP but it's also known as DHCP reservations and a
bunch of other names).
The process of setting this up is complicated for a non-technical user,
and this attempts to make it a little bit easier to do by immediately
giving them the correct MAC address they should use. To avoid confusion
this only prints the MAC addresses for interfaces which have an IP
address.
This allows people to connect the posbox to networks using a wireless
network adapter.
When plugging in a USB Wi-Fi adapter and no network cable, the posbox
will boot and host its own Access Point called "Posbox". Users can
connect their device to this network and can then connect to the posbox
the usual way.
An interface for has been provided that also allows users to instruct
the posbox to connect to a different Wi-Fi network. This is useful when
the client is not running Odoo locally.
It is also possible to make this configuration persistent. With a
persistent Wi-Fi network configuration, the posbox will always try to
connect to the specified network after a reboot.
Attempts have been made to make the Wi-Fi connection as robust as
possible. Upon connection loss, the posbox will automatically attempt to
reconnect.
We search for USB devices that identify as a printer through their
DeviceClass or one of their InterfaceClasses. The issue is a lot of
printers use vendor-specific Device/InterfaceClasses.
Apparently the Epson TM-T88IV is one of those devices. So in order to
work around this, we now first look for a USB device that identifies as
a printer. If those do not exist, we pick the first Epson device, if
those do not exist we pick the first Star device.
Perhaps we should instead start using some kind of probe-based approach
to identify ESC/POS compatible devices.
In order for the printer to work we need to configure it in USB vendor
mode. This means it will not have a USB interfaceClass of 7. So when
we don't find any USB device that identifies as a printer, we search
for Star devices and use the first one of those we find.
This should be reasonably safe because Star does not manufacture other
devices apart from printers that one would attach to the posbox.
Although it might be a good idea to make sure a printer device is
properly closed, trying for >1 min to do so is too much. It can cause a
>1 min delay between receiving a receipt and actually printing. Also,
just because the device is not cleanly closed does not mean that it will
not work when we open it again.
It makes more sense to just look for usb devices that identify as a
printer and use whatever we get. This saves us time having to explain to
users how to add their particular printer to the whitelist to test.
Instead of continuing to build upon the old images, these scripts
implement a reproducable way to generate new posbox images. The
generated images will be based on the latest stable Raspbian
release. The image will be created with the help of qemu-system-arm,
which will boot up the image and execute a script that will set up the
posbox image.
This way everything necessary to set up a posbox is readable in the
scripts and accompanying files, instead of being hidden in an image.
This commit contains the patches from the now obsolete 'posbox'
branch. These patches were written by Martin Donies (@mdo-odoo) and
Frédéric Van der Essen (@fvdsn).
Martin Trigaux
Olivier Dony
Stefan Rijnhart
Joren Van Onder
谢立
Antony Lesuisse
Martin
Thomas Rehn
Frédéric Van der Essen
Frederic van der Essen
Christophe Simonis
Fabien Pinckaers
TheCloneMaster
Dimitri del Marmol
Martin Trigaux
Denis Ledoux
Josse Colpaert
Fabien Meghazi
Quentin (OpenERP)
Christophe Simonis