28 Mar
2013
28 Mar
'13
3:48 p.m.
On 29/03/13 00:39, Leonid Isaev wrote:
On Thu, 28 Mar 2013 18:23:03 +1100 Robbie Smith <zoqaeski@gmail.com> wrote:
TL;DR: More toying with mobile broadband and systemd; would like help automatically stopping service depending on device availability.
[...]
What I cannot figure out how to do is automatically stop the service if the device is unplugged, similar to how ifplugd works for wired ethernet interfaces.
How about "BindsTo=" from man 5 systemd.unit? For example, "BindsTo=sys-subsystem-net-devices-wap.device".
That did the trick (when the device is /dev/ttyUSB0). Now to just make a persistent name for the rare occasions when it appears as something else (always a /dev/ttyUSBx).