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EHS6T - USB Virtual Serial Ports are enumerated differently after modem power cycle on Debian Linux | Telit Cinterion IoT Developer Community

December 2, 2014 - 9:43am, 4874 views


We have run into a problem with the virtual serial ports that are established by the USB serial port driver on Debian Linux when we connect the EHS6T modem to a BeagleBone Black Rev. C running Debian Linux 7.5 distribution.

Initially the virtual serial ports are enumerated from ttyACM0 to ttyACM6 where we use ttyACM0 to talk to the modem. But when the modem is power cycled the virtual serial ports are reenumerated from ttyACM1 to ttyACM7.

Is there some way to avoid this ? We would like to have the same enumeration at all ***** so we can always ***** on using the same virtuel serial port for communication with the EHS6T modem.


Per Hungeberg Møller