diff options
| -rw-r--r-- | CHANGES.rst | 4 | ||||
| -rw-r--r-- | serial/serialposix.py | 6 |
2 files changed, 8 insertions, 2 deletions
diff --git a/CHANGES.rst b/CHANGES.rst index cf4f6ce..25bf49e 100644 --- a/CHANGES.rst +++ b/CHANGES.rst @@ -634,3 +634,7 @@ Improvements: Bugfixes: - [#122] fix bug in FramedPacket + +Bugfixes (posix): + +- [#126] PATCH: Check delay_before_tx/rx for None in serialposix.py diff --git a/serial/serialposix.py b/serial/serialposix.py index bc2468c..0bf3df5 100644 --- a/serial/serialposix.py +++ b/serial/serialposix.py @@ -139,8 +139,10 @@ if plat[:5] == 'linux': # Linux (confirmed) # noqa buf[0] |= SER_RS485_RTS_AFTER_SEND else: buf[0] &= ~SER_RS485_RTS_AFTER_SEND - buf[1] = int(rs485_settings.delay_before_tx * 1000) - buf[2] = int(rs485_settings.delay_before_rx * 1000) + if rs485_settings.delay_before_tx is not None: + buf[1] = int(rs485_settings.delay_before_tx * 1000) + if rs485_settings.delay_before_rx is not None: + buf[2] = int(rs485_settings.delay_before_rx * 1000) else: buf[0] = 0 # clear SER_RS485_ENABLED fcntl.ioctl(self.fd, TIOCSRS485, buf) |