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agl-service-unicens: access denied when opening character devices

Description

After booting master image (nightly build from 1st June 2019), the "agl-service-unicens" cannot open/read/write the required character devices (rx=/dev/inic-usb-crx, tx=/dev/inic-usb-ctx).

The logs say that access is denied. 

The issue is seen on master. Guppy seems to work fine.

 

 

Environment

Master / m3ulcb

Activity

Walt Miner 
July 30, 2019 at 9:38 PM

Close for HH 8.0.0 release

Tobias Jahnke 
July 4, 2019 at 3:00 PM

I created an extra ticket for the Protocol Error. I can confirm that it is sporadic.

Tobias Jahnke 
July 4, 2019 at 12:43 PM

, you are right. Adding the udev rules and adding the 'audio' permission fixes it.

I temporary fixed it by modifying the unit "/usr/local/lib/systemd/system/afm-service-agl-service-unicens--0.1-b79d0ef–main.service", assigning to group 'audio'.

Thank you for the investigation.

Scott Murray 
July 4, 2019 at 11:02 AM

With respect to the "Failed with result 'protocol'." systemd error, it went away when I turned on systemd debug logging, suggesting a race condition of some kind.  I'll upload the udev and config.xml.in changes since they seem required as a start.

Scott Murray 
July 4, 2019 at 9:17 AM

, see my comment above, the rules I listed plus adding the audio permission to the config.xml.in do allow agl-service-unicens to start if it's poked with systemctl after booting.

Fixed

Details

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Fix versions

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Hardware Platform(s) Affected

Renesas M3

Components

Affects versions

Priority

Created July 2, 2019 at 11:50 AM
Updated September 19, 2019 at 12:06 PM
Resolved July 9, 2019 at 9:10 PM