def test_string(self):
"""Retrieve a string from its identifier."""
ftdis = [(0x403, 0x6010)]
ft2232h = UsbTools.find_all(ftdis)[0]
devdesc, _ = ft2232h
dev = UsbTools.get_device(devdesc)
serialn = UsbTools.get_string(dev, dev.iSerialNumber)
self.assertEqual(serialn, 'FT2DEF')
def test_usb_device(self):
"""Demo instanciation from an existing UsbDevice.
"""
candidate = Ftdi.get_identifiers(self.ftdi_url)
usbdev = UsbTools.get_device(candidate[0])
spi = SpiController(cs_count=1)
spi.configure(usbdev, interface=candidate[1])
flash = SerialFlashManager.get_from_controller(spi, cs=0,
freq=self.frequency)
def test_device(self):
"""Access and release FTDI device."""
ftdis = [(0x403, 0x6001)]
ft232rs = UsbTools.find_all(ftdis)
self.assertEqual(len(ft232rs), 1)
devdesc, ifcount = ft232rs[0]
self.assertEqual(ifcount, 1)
dev = UsbTools.get_device(devdesc)
self.assertIsNotNone(dev)
UsbTools.release_device(dev)
def open(self, vendor=0x0403, product=None, interface=1, index=0, serial=None,
description=None):
"""Open a new interface to the specified FTDI device"""
self.usb_dev = UsbTools.get_device(vendor, product, index, serial,
description)
# detect invalid interface as early as possible
config = self.usb_dev.get_active_configuration()
if interface > config.bNumInterfaces:
raise FtdiError('No such FTDI port: %d' % interface)
self._set_interface(config, interface)
self.max_packet_size = self._get_max_packet_size()
self._reset_device()
self.set_latency_timer(self.LATENCY_MIN)
def open(self, vendor, product, index=0, serial=None, interface=1):
"""Open a new interface to the specified FTDI device"""
self.usb_dev = UsbTools.get_device(vendor, product, index, serial)
try:
self.usb_dev.set_configuration()
except usb.core.USBError:
pass
# detect invalid interface as early as possible
config = self.usb_dev.get_active_configuration()
if interface > config.bNumInterfaces:
raise FtdiError('No such FTDI port: %d' % interface)
self._set_interface(config, interface)
self.max_packet_size = self._get_max_packet_size()
# Drain input buffer
self.purge_buffers()
self._reset_device()
self.set_latency_timer(self.LATENCY_MIN)
def open(self,
vendor=0x0403,
product=None,
interface=1,
index=0,
serial=None,
description=None):
"""Open a new interface to the specified FTDI device"""
self.usb_dev = UsbTools.get_device(vendor, product, index, serial,
description)
# detect invalid interface as early as possible
config = self.usb_dev.get_active_configuration()
if interface > config.bNumInterfaces:
raise FtdiError('No such FTDI port: %d' % interface)
self._set_interface(config, interface)
self.max_packet_size = self._get_max_packet_size()
self._reset_device()
self.set_latency_timer(self.LATENCY_MIN)
