This is a summary task for multiple issues:
- Signal strength can not be read while interface is disconnected
[email protected]# run show interfaces wwan wwan0 signal Traceback (most recent call last): File "/usr/libexec/vyos/op_mode/show_wwan.py", line 68, in <module> qmi_cmd(cdc, '--nas-get-signal-info') File "/usr/libexec/vyos/op_mode/show_wwan.py", line 37, in qmi_cmd tmp = cmd(f'qmicli --device={device} --device-open-proxy {command}') File "/usr/lib/python3/dist-packages/vyos/util.py", line 161, in cmd raise OSError(code, feedback) PermissionError: [Errno 1] failed to run command: qmicli --device=/dev/cdc-wdm0 --device-open-proxy --nas-get-signal-info returned: exit code: 1