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[IMP] hw_escpos: more fault tolerant printer detection 

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)
production/rebase-20171130
Martin Trigaux 2016-10-18 09:43:41 +02:00
parent 7a15e52cea
commit 8459860b02
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GPG Key ID: 7B0E288E7C0F83A7
1 changed files with 6 additions and 1 deletions
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7
addons/hw_escpos/controllers/main.py
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@ -86,10 +86,15 @@ class EscposDriver(Thread):
printers = usb.core.find(find_all=True, idVendor=0x0519)
for printer in printers:
try:
description = usb.util.get_string(printer, 256, printer.iManufacturer) + " " + usb.util.get_string(printer, 256, printer.iProduct)
except Exception as e:
_logger.error("Can not get printer description: %s" % (e.message or repr(e)))
description = 'Unknown printer'
connected.append({
'vendor': printer.idVendor,
'product': printer.idProduct,
'name': usb.util.get_string(printer, 256, printer.iManufacturer) + " " + usb.util.get_string(printer, 256, printer.iProduct)
'name': description
})
return connected