Ntpd via cellular data connection

Legato Application Framework
1

At the moment when I configure in /etc/time_service.conf to

TIME_SERVICES="ntpd_time" it doesn’t update system time when cellular data connection is established, it only works when eth connection is established. I tried using IP adress from pool.ntp.org.
Is there a way to make this work?

I am using 18.04 Legato on WP7702 and I don’t have AirVantage services installed, also my application is desired to be sandboxed, installed services are:

[running] atService
[running] cellNetService
[running] dataConnectionService
[running] fwupdateService
[running] gpioService
[running] modemService
[running] portService
[running] powerMgr
[running] secStore
[stopped] tools

I don’t want to use qcom_time because some providers that I have connected to didn’t provide correct time.

2

Hi,

Try to replace “eth0” by “rmnet_data0” in these two scripts:

  • /etc/network/if-up.d/ntpd_start
  • /etc/network/if-down.d/ntpd_stop

Jay

3

Tahnks for your reply in the end I patched these files:
/etc/time_service.conf
/etc/network/interfaces
And added two scripts one in the
/etc/init.d/ntpd_start_custom
/etc/network/if-up.d/ntpd_start_custom

Added protection in the script to wait until the internet connection is established and then to reach for the time from ntp server. This solved my issue. Thanks