OH2 nanoCUL - Intertechnobinding - Can't open CUL

Hello,

I have build an do-it-yourself nanoCUL. No wi try to bind it in OH2, but it shows me always this error.
I tried some bautrates like 9600, 57600 … but always the same error. I also give the rights to user openhab for the USBport

[21:50:07] root@openHABianPi:~# ls -alh /dev/ttyUSB0
crwxrwxr-x 1 openhab users 188, 0 Dec 14 21:47 /dev/ttyUSB0

Have anybody a solution for me?

BR Rene

openhab.log:

2016-12-14 21:59:20.276 [INFO ] [ternal.serial.CULSerialConfigFactory] - Update config, baudrate = 38400
2016-12-14 21:59:20.277 [INFO ] [ternal.serial.CULSerialConfigFactory] - Update config, parity = NONE (0)
2016-12-14 21:59:20.277 [DEBUG] [io.transport.cul.internal.CULManager] - Trying to open device serial:/dev/ttyUSB0 in mode SLOW_RF
2016-12-14 21:59:20.278 [DEBUG] [io.transport.cul.internal.CULManager] - Searching class for device type serial
2016-12-14 21:59:20.279 [DEBUG] [internal.serial.CULSerialHandlerImpl] - Opening serial CUL connection for /dev/ttyUSB0
2016-12-14 21:59:20.285 [ERROR] [io.transport.cul.CULLifecycleManager] - Can’t open CUL
org.openhab.io.transport.cul.CULDeviceException: gnu.io.NoSuchPortException
at org.openhab.io.transport.cul.internal.serial.CULSerialHandlerImpl.openHardware(CULSerialHandlerImpl.java:100)[232:org.openhab.io.transport.cul:1.9.0.201612110211]
at org.openhab.io.transport.cul.internal.AbstractCULHandler.open(AbstractCULHandler.java:139)[232:org.openhab.io.transport.cul:1.9.0.201612110211]
at org.openhab.io.transport.cul.internal.CULManager.createNewHandler(CULManager.java:149)[232:org.openhab.io.transport.cul:1.9.0.201612110211]
at org.openhab.io.transport.cul.internal.CULManager.getOpenCULHandler(CULManager.java:84)[232:org.openhab.io.transport.cul:1.9.0.201612110211]
at org.openhab.io.transport.cul.CULLifecycleManager.open(CULLifecycleManager.java:85)[232:org.openhab.io.transport.cul:1.9.0.201612110211]
at org.openhab.io.transport.cul.CULLifecycleManager.config(CULLifecycleManager.java:74)[232:org.openhab.io.transport.cul:1.9.0.201612110211]
at org.openhab.binding.intertechno.internal.CULIntertechnoBinding.updated(CULIntertechnoBinding.java:147)[231:org.openhab.binding.intertechno:1.9.0.201612110211]
at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189)[7:org.apache.felix.configadmin:1.8.8]
at org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152)[7:org.apache.felix.configadmin:1.8.8]
at org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85)[7:org.apache.felix.configadmin:1.8.8]
at org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1753)[7:org.apache.felix.configadmin:1.8.8]
at org.apache.felix.cm.impl.UpdateThread.run0(UpdateThread.java:143)[7:org.apache.felix.configadmin:1.8.8]
at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:110)[7:org.apache.felix.configadmin:1.8.8]
at java.lang.Thread.run(Thread.java:745)[:1.8.0_111]
Caused by: gnu.io.NoSuchPortException
at gnu.io.CommPortIdentifier.getPortIdentifier(CommPortIdentifier.java:273)[233:org.openhab.io.transport.serial:2.0.0.201612112211]
at org.openhab.io.transport.cul.internal.serial.CULSerialHandlerImpl.openHardware(CULSerialHandlerImpl.java:78)[232:org.openhab.io.transport.cul:1.9.0.201612110211]

I’m using a CUL with OH2 and Intertechno binding. Using this setup under the user openhab I got the same error, changing to user root the error vanished and the CUL is sending it’s messages as desired.