def BulkRead(self, length, timeout_ms=None):
if self._handle is None:
raise usb_exceptions.ReadFailedError(
'This handle has been closed, probably due to another being opened.',
None)
try:
return self._handle.bulkRead(
self._read_endpoint, length, timeout=self.Timeout(timeout_ms))
except libusb1.USBError as e:
raise usb_exceptions.ReadFailedError(
'Could not receive data from %s (timeout %sms)' % (
self.usb_info, self.Timeout(timeout_ms)), e)
def BulkRead(self, length, timeout_ms=None):
if self._handle is None:
raise usb_exceptions.ReadFailedError(
'This handle has been closed, probably due to another being opened.',
None)
try:
# python-libusb1 > 1.6 exposes bytearray()s now instead of bytes/str.
# To support older and newer versions, we ensure everything's bytearray()
# from here on out.
return bytearray(self._handle.bulkRead(
self._read_endpoint, length, timeout=self.Timeout(timeout_ms)))
except libusb1.USBError as e:
raise usb_exceptions.ReadFailedError(
'Could not receive data from %s (timeout %sms)' % (
self.usb_info, self.Timeout(timeout_ms)), e)
def BulkRead(self, length, timeout_ms=None): # pylint: disable=unused-argument
with self._lock:
if not self._expected_io:
raise usb_exceptions.ReadFailedError(None,
None) # pragma: no cover
if self._expected_io[0][0] != 'read':
# Nothing to read for now.
raise usb_exceptions.ReadFailedError(None,
None) # pragma: no cover
data = self._expected_io.pop(0)[1]
if length < len(data):
raise ValueError(
'Unexpected read length. Read %d bytes, got %d bytes' %
(length, len(data))) # pragma: no cover
return data
def BulkWrite(self, data, timeout_ms=None):
try:
self._connection.settimeout(self.Timeout(timeout_ms) / 1000.0)
return self._connection.sendall(data)
except socket.timeout as e:
raise usb_exceptions.ReadFailedError(
'Could not send data (timeout %sms)' % (self.Timeout(timeout_ms)), e)
def BulkRead(self, length, timeout_ms=None):
try:
self._connection.settimeout(self.Timeout(timeout_ms) / 1000.0)
return self._connection.recv(length)
except socket.timeout as e:
raise usb_exceptions.ReadFailedError(
'Could not receive data (timeout %sms)' % (
self.Timeout(timeout_ms)), e)
