New device node created on host does not get reflected in Docker container when using --device flag
From all the researches online and some experimentation with using '--device', I've found that ephemeral (hot pluggable) devices are not supported by this option. It's a shame that the Docker documentation did not state this clearly, if at all. I only read one comment online from a user which mentioned it in passing. For those who want to use '--device' for these devices, don't; use the '--privileged' & '-v ' options instead. This will avoid you having to specify the exact device file name, e.g. /dev/bus/usb/002/088, instead you can specify just /dev/bus/usb. The '--device' option requires the actual device file name to work.