Access denied

[Jacques Desroches]

Hi,

I've done a fresh install of weewx on a new DietPi v9.18 (plain, with no other software)

on my rPi 4 4GB. But it seems to have a usb permission problem

Oct 27 11:28:06 DietPi weewxd[5259]: INFO weewx.engine: Starting main packet loop.
Oct 27 11:28:06 DietPi weewxd[5259]: ERROR weewx.drivers.acurite: release interface failed: [Errno 13] Access denied (insufficient permissions)
Oct 27 11:28:06 DietPi weewxd[5259]: CRITICAL weewx.drivers.acurite: Unable to claim USB interface 0: [Errno 13] Access denied (insufficient permissions)
Oct 27 11:28:06 DietPi weewxd[5259]: ERROR weewx.drivers.acurite: Failed attempt 1 of 10 to get LOOP data: [Errno 13] Access denied (insufficient permissions)

lsusb display my station:

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 003: ID 24c0:0003 Chaney Instrument Model 01036 weather center
Bus 001 Device 004: ID 10d5:5000 Uni Class Technology Co., Ltd Combo Free KVM
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

Station was running great on that Pc before crashing (with Raspberry Pi OS - Bookworm)

Thanks in advance,

Jacques

[vince]

Do some searching for 'acurite' here please.  This has been coming up a lot for trixie - see https://groups.google.com/g/weewx-user/c/VijmdjWVzZg/m/nj_otr20BAAJ for some pointers but there have been multiple long threads since trixie came out.

Usually the issue is that the user weewx runs as (weewx if you are using a dpkg installation) is not in a group permitted to access the hardware, but acurite seems to have issues with some kernels or libusb versions perhaps.

More group permission details at https://github.com/weewx/weewx/wiki/Understanding-permissions#the-weewx-user 

[Jacques Desroches]

Hi Vince,

I'm testing Ubuntu 25.10 and 25.04 with no results.

... will try 24.04 next.

I've activated debug on weewx.conf and see this line, juste before error :

 DEBUG weewx.drivers.acurite: Found station at bus= device=

So bus and device have no value... but with lsusb I see it on bus 001 and device 003

Bus 001 Device 003: ID 24c0:0003 Chaney Instrument Model 01036 weather center

... expecting to find a working os!

Regards,

Jacques

[Jacques Desroches]

Hi,

I've succed with ubuntu v22.04.3. Station is working great now!

I've tried latest versions of Rasberry pi OS (Bookworm), DietPi and Ubuntu

none of them are working with my installation Weewx/Acurite.

Something to investigate for future updates.

Regards,

Jacques