new user here, I've just installed ubtouch on my Nexus 7 and I try to setup a development box with PlatformIO.

For that I require usb serial ports, which register as /dev/usbdev1.1

What is the best way to get access to a serial port from within a container?

I've tried adding this to /etc/lxc/default.conf (after issuing sudo mount -o remount,rw /

lxc.mount.entry = /dev/bus/usb dev/bus/usb  none bind,optional,create=dir 0 0

lxc.cgroup.devices.allow = c 189:* rwm
lxc.mount.entry = /dev/usbdev1.1 dev/usbdev1.1 none bind,optional,create=file 0 0
lxc.mount.entry = /dev/usbdev1.2 dev/usbdev1.2 none bind,optional,create=file 0 0

That seems to work, but I need to manually chmod 666 the device files.

To automate that, I've tried to add a script that chmods...

sudo echo "/sbin/hotplug" > /proc/sys/kernel/hotplug
-bash: /proc/sys/kernel/hotplug: Permission denied

but that does not work.

Probably I'd need a user-serial kernel module, but I presume that would not work with the released kernel?
Any advise hot to set that up properly?

Thanks

pit