Migration to libusb1 and changes to make it compatible with python on Windows

.mailmap

@@ -8,6 +8,7 @@ Cody (Quantified Code Bot) <cody@quantifiedcode.com> Cody <cody@quantifiedcode.c
 Renato Lorenzi <renato.lorenzi@senior.com.br>        Renato.Lorenzi <renato.lorenzi@senior.com.br>
 Ahmed Tahri <nyuubi.10@gmail.com>                    TAHRI Ahmed <nyuubi.10@gmail.com>
 Michael Elsdörfer <michael@elsdoerfer.com>           Michael Elsdörfer <michael@elsdoerfer.info>
+Juanmi Taboada <juanmi@juanmitaboada.com>            Juanmi Taboada <juanmi@juanmitaboada.com>
 csoft2k <csoft2k@hotmail.com>
 Sergio Pulgarin <sergio.pulgarin@gmail.com>
 reck31 <rakesh.gunduka@gmail.com>

AUTHORS

@@ -10,6 +10,7 @@ Dean Rispin
 Dmytro Katyukha
 Hark
 Joel Lehtonen
+Juanmi Taboada // br0th3r
 Kristi
 ldos
 Lucy Linder

setup.py

@@ -107,7 +107,7 @@ setup(
         'Topic :: Office/Business :: Financial :: Point-Of-Sale',
     ],
     install_requires=[
-        'pyusb>=1.0.0',
+        'libusb1',
         'Pillow>=2.0',
         'qrcode>=4.0',
         'pyserial',

src/escpos/capabilities.py

@@ -7,12 +7,12 @@ import time
 import six
 import yaml
 
+from tempfile import gettempdir
 
 logging.basicConfig()
 logger = logging.getLogger(__name__)
 
-
+pickle_dir = environ.get('ESCPOS_CAPABILITIES_PICKLE_DIR', gettempdir())
-pickle_dir = environ.get('ESCPOS_CAPABILITIES_PICKLE_DIR', '/tmp/')
 pickle_path = path.join(pickle_dir, 'capabilities.pickle')
 capabilities_path = environ.get(
     'ESCPOS_CAPABILITIES_FILE',

src/escpos/printer.py

@@ -13,8 +13,9 @@ from __future__ import division
 from __future__ import print_function
 from __future__ import unicode_literals
 
-import usb.core
+from usb1 import USBContext
-import usb.util
+
+import platform
 import serial
 import socket
 
@@ -33,6 +34,7 @@ class Usb(Escpos):
         :parts: 1
 
     """
+    INTERFACE = 0
 
     def __init__(self, idVendor, idProduct, timeout=0, in_ep=0x82, out_ep=0x01, *args, **kwargs):  # noqa: N803
         """
@@ -52,29 +54,16 @@ class Usb(Escpos):
 
     def open(self):
         """ Search device on USB tree and set it as escpos device """
-        self.device = usb.core.find(idVendor=self.idVendor, idProduct=self.idProduct)
+        self.ctx = USBContext()
-        if self.device is None:
+        dev = self.ctx.getByVendorIDAndProductID(self.idVendor, self.idProduct)
+        if dev is None:
             raise USBNotFoundError("Device not found or cable not plugged in.")
 
-        check_driver = None
+        self.device = dev.open()
+        if platform.system() == 'Linux' and self.device.kernelDriverActive(self.INTERFACE):
+            self.device.detachKernelDriver(self.INTERFACE)
 
-        try:
+        self.device.claimInterface(self.INTERFACE)
-            check_driver = self.device.is_kernel_driver_active(0)
-        except NotImplementedError:
-            pass
-
-        if check_driver is None or check_driver:
-            try:
-                self.device.detach_kernel_driver(0)
-            except usb.core.USBError as e:
-                if check_driver is not None:
-                    print("Could not detatch kernel driver: {0}".format(str(e)))
-
-        try:
-            self.device.set_configuration()
-            self.device.reset()
-        except usb.core.USBError as e:
-            print("Could not set configuration: {0}".format(str(e)))
 
     def _raw(self, msg):
         """ Print any command sent in raw format
@@ -82,17 +71,21 @@ class Usb(Escpos):
         :param msg: arbitrary code to be printed
         :type msg: bytes
         """
-        self.device.write(self.out_ep, msg, self.timeout)
+        self.device.bulkWrite(self.out_ep, msg, timeout=self.timeout)
 
     def _read(self):
         """ Reads a data buffer and returns it to the caller. """
-        return self.device.read(self.in_ep, 16)
+        return self.device.bulkRead(self.in_ep, 16, timeout=self.timeout)
 
     def close(self):
         """ Release USB interface """
         if self.device:
-            usb.util.dispose_resources(self.device)
+            self.device.releaseInterface(self.INTERFACE)
+            self.device.close()
             self.device = None
+        if self.ctx:
+            self.ctx.exit()
+            self.ctx = None
 
 
 class Serial(Escpos):