Hi, I have a USB Based ADSL Modem which works fine with Win-XP, It is detected and is available in Hardware List in my Red Hat Linux Enerprise 4, I have installed the required driver for it in Linux, BUT the "ttyACM0,1,2.." files are not found and also "ttyUSB0,1,2.." files are absent in /dev and /etc, which are required to configure the Modem, What is Solution?