Hi
I have seen reports of usb permissions / errno 13 on installs of weewx 5.0
After a fresh install of weewx 5.0 via apt-get on Mint 21.3 xfce I got this
error in syslog:
Jan 29 19:38:35 antec300 systemd[1]: Started WeeWX.
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Initializing weewxd
version 5.0.0
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Command line:
/usr/share/weewx/weewxd.py /etc/weewx/weewx.conf
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Using Python 3.10.12
(main, Nov 20 2023, 15:14:05) [GCC 11.4.0]
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Located at
/usr/bin/python3
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Platform
Linux-5.15.0-91-generic-x86_64-with-glibc2.35
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Locale: 'en_GB.UTF-8'
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Entry path:
/usr/share/weewx/weewxd.py
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: WEEWX_ROOT: /etc/weewx
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Configuration file:
/etc/weewx/weewx.conf
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: User module:
/etc/weewx/bin/user
Jan 29 19:38:35 antec300 weewxd[2917]: INFO __main__: Debug: 0
Jan 29 19:38:35 antec300 weewxd[2917]: INFO weewx.engine: Loading station
type Vantage (weewx.drivers.vantage)
Jan 29 19:38:35 antec300 weewxd[2917]: ERROR weewx.engine: Import of driver
failed: [Errno 13] could not open port /dev/ttyUSB0: [Errno 13] Permission
denied: '/dev/ttyUSB0' (<class 'serial.serialutil.SerialException'>)
Jan 29 19:38:35 antec300 weewxd[2917]: CRITICAL weewx.engine: ****
Traceback (most recent call last):
...
I solved this by adding a udev rule:
# make Vantage accessible to weewx user
SUBSYSTEMS=="usb", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea61",
GROUP="dialout", MODE="0666"
Hope this might help someone else.
Thanks for a great program and excellent documentation.
paul
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