An error occurred when using the Modbus Service to connect to a real sensor！

[HuangYuFe]

I tried to use the EdgeX project to complete the integration of real sensor devices based on the ModbusRTU protocol. I completed the deployment of EdgeX using Kuberntes' Deployment deployer。

In addition, I have completed the access of real sensor devices based on ModbusTCP, which can complete the data collection.

But when I try to collect ModbusRTU device data via the USB hardware interface, I get a problem.

I checked the deployment information of the EdgeX application according to the permission denial prompted by the log message, and I confirmed that the mount path is /dev/ttyUSB0 and I have the r/w permission

So, it's not clear to me what the cause of the error is, here's the YAML content of my Kuberntes deployer:

[cloudxxx8]

it's the deployment and permission setting issue. we only have this reference for suggestion
https://docs.edgexfoundry.org/3.1/microservices/device/services/device-modbus/GettingStarted/#set-up-the-modbus-rtu-device

[HuangYuFe]

@cloudxxx8
Okay, but I'm just referring to that link for deployment. The difference is that I'm using Kubernetes instead of Docker Compose to deploy the EdgeX.