To install, configure and make operational a USB serial interface to Cisco console port. This example is accomplished with Ubuntu built on debian.
user:~$ sudo -i
root:/# lsusb
Bus 002 Device 004: ID 0a5c:5801 Broadcom Corp. BCM5880 Secure Applications Processor with fingerprint swipe sensor
Bus 002 Device 005: ID 05a6:0009 Cisco Systems, Inc.
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 1bcf:2b83 Sunplus Innovation Technology Inc. Laptop Integrated Webcam FHD
Bus 001 Device 003: ID 413c:8187 Dell Computer Corp. DW375 Bluetooth Module
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
root:/# modprobe usbserial vendor=0x05a6 product=0x0009
root:/#dmesg | grep 05a6
remember the product code from earlier
usb 2-1.4: New USB device found, idVendor=05a6, idProduct=0009
usb 2-1.4: New USB device found, idVendor=05a6, idProduct=0009
root:/#dmesg | grep tty
console [tty0] enabled
cdc_acm 2-1.4:1.0: ttyACM0: USB ACM device
cdc_acm 2-1.4:1.0: ttyACM0: USB ACM device
note the usb 2-1.4 from dmesg vendor code and dmesg tty these match so the info to take away from here is ttyACM0 note linux is case sensitive. Use ttyACM0 in minicom
Install minicom
root:/# apt-get install minicom
configure minicom serial
