Multiplexing NMEA on a router (NMEA over WiFi redux)

[muttnik]

Originally Posted by Mollymawk

One scenario I haven't tackled yet is connecting the USB serial adaptors after startup. By declaring the serial interfaces as optional in the kplex config file, kplex will load even if the adaptors are not plugged in, but I don't think it will start reading data from them when they are connected. The simple workaround is to reboot the router after connecting the adaptors, if they weren't connected at startup, but ideally I'd like to be able to (re)start kplex when a USB serial adaptor is plugged in.

On Linux (I'm not familiar with OpenWRT) you can re-start kplex when a usb device is plugged in using udev:
Writing udev rules

I'd look at doing something with udev, hotplug2 or whatever covers that functionality on the version of OpenWRT that you're using

[Mollymawk]

Originally Posted by muttnik

On Linux (I'm not familiar with OpenWRT) you can re-start kplex when a usb device is plugged in using udev:
Writing udev rules

I'd look at doing something with udev, hotplug2 or whatever covers that functionality on the version of OpenWRT that you're using

Thanks Keith, I'll play with that and see what solution I cone up with.

It occurred to me that a nice feature for kplex would be an option to start up even if certain interfaces did not exist, and then to keep polling for them until they did exist. Likewise, if an interface was disconnected it could begin polling for it until it was reconnected.
I think this option would be useful on the desktop, too, not just on routers.

Cheers, Caesar