diff options
Diffstat (limited to 'serial/serialwin32.py')
| -rw-r--r-- | serial/serialwin32.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/serial/serialwin32.py b/serial/serialwin32.py index b275ea3..829a71b 100644 --- a/serial/serialwin32.py +++ b/serial/serialwin32.py @@ -254,7 +254,7 @@ class Serial(SerialBase): flags = win32.DWORD() comstat = win32.COMSTAT() if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)): - raise SerialException('call to ClearCommError failed') + raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError())) return comstat.cbInQue def read(self, size=1): @@ -311,7 +311,7 @@ class Serial(SerialBase): n = win32.DWORD() success = win32.WriteFile(self._port_handle, data, len(data), ctypes.byref(n), self._overlapped_write) if self._write_timeout != 0: # if blocking (None) or w/ write timeout (>0) - if not success and win32.GetLastError() != win32.ERROR_IO_PENDING: + if not success and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING): raise SerialException("WriteFile failed ({!r})".format(ctypes.WinError())) # Wait for the write to complete. |