If the user weewxd is running doesn't have sufficient permissions to access
the device, you get this error Message:
ERROR weewx.engine: Import of driver failed: The device has no langid
(permission issue, no string descriptors supported or device error) (<class
'ValueError'>)
To fix this, I've added an udev rule.
First, find out vendor and device id:
*pi@rpi:**~$* lsusb
Bus 002 Device 002: ID 0781:5583 SanDisk Corp. Ultra Fit
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
*Bus 001 Device 004: ID 6666:5555 Prototype product Vendor ID Weather
Direct Light Wireless Device*
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Vendor Id is 6666, device Id is 5555
Then, create and edit a file with the udev rules:
*pi@rpi:**~$* sudo nano /etc/udev/rules.d/99-ws28xx.rules
The content of the file:
SUBSYSTEM=="usb", ATTR{idVendor}=="6666", ATTR{idProduct}=="5555",
MODE="666"
Restart udev and unplug/replug the device (or restart the machine)
I don't know if there is a better way or if there is any other issue with
doing it this way, but this gets things working on Raspberry Pi OS :)
vince schrieb am Montag, 30. Oktober 2023 um 22:29:36 UTC+1:
> Yes. Maybe. What device does it use ?
>
> If you are on a pi using user 'pi' you are a member of group 'dialout'
> which can access the serial/usb port ala /dev/ttyUSB0 without making any
> changes. That's how my VP2 using a serial2usb converter works.
>
> On Monday, October 30, 2023 at 2:20:38 PM UTC-7 michael.k...@gmx.at wrote:
>
>> Can I run weewx as non-root user using the ws28xx driver?
>>
>> I am on raspianOS, is there a device I have to change access rights or is
>> there a group to add the user to, or some other rule to let unprivileged
>> users access the device?
>>
>
--
You received this message because you are subscribed to the Google Groups
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/weewx-user/3d74c18e-5537-4419-b589-769820a93080n%40googlegroups.com.
