def from_device(cls, device):
ret = []
for attr in ('iManufacturer', 'iProduct', 'iSerialNumber'):
try:
ret.append(usb_get_string(device, 255, getattr(device, attr)).strip())
except Exception as e:
ret.append('Unknown')
return cls(*ret)
def from_device(cls, device):
ret = []
for attr in ('iManufacturer', 'iProduct', 'iSerialNumber'):
try:
ret.append(usb_get_string(device, 255, getattr(device, attr)).strip())
except Exception as e:
ret.append('Unknown')
return cls(*ret)
def from_device(cls, device):
ret = []
for attr in ("iManufacturer", "iProduct", "iSerialNumber"):
try:
ret.append(usb_get_string(device, 255, getattr(device, attr)).strip())
except Exception as e:
ret.append("Unknown")
return cls(*ret)
def get_string(cls, device: UsbDevice, stridx: int) -> str:
"""Retrieve a string from the USB device, dealing with PyUSB API breaks
:param device: USB device instance
:param stridx: the string identifier
:return: the string read from the USB device
"""
if cls.UsbApi is None:
import inspect
args, _, _, _ = \
inspect.signature(UsbDevice.read).parameters
if (len(args) >= 3) and args[1] == 'length':
cls.UsbApi = 1
else:
cls.UsbApi = 2
if cls.UsbApi == 2:
return usb_get_string(device, stridx)
return usb_get_string(device, 64, stridx)
def get_string(cls, device: UsbDevice, stridx: int) -> str:
"""Retrieve a string from the USB device, dealing with PyUSB API breaks
:param device: USB device instance
:param stridx: the string identifier
:return: the string read from the USB device
"""
if cls.UsbApi is None:
import inspect
args, _, _, _ = \
inspect.signature(UsbDevice.read).parameters
if (len(args) >= 3) and args[1] == 'length':
cls.UsbApi = 1
else:
cls.UsbApi = 2
try:
if cls.UsbApi == 2:
return usb_get_string(device, stridx)
return usb_get_string(device, 64, stridx)
except UnicodeDecodeError:
# do not abort if EEPROM data is somewhat incoherent
return ''