Passwort: 
linux-ff41:~ # lsusb
Bus 001 Device 003: ID 1c9e:9801  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
linux-ff41:~ # ls -al /dev/ttyU*
crw-rw---- 1 root dialout 188, 0 Jan  3 11:21 /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 1 Jan  3 11:20 /dev/ttyUSB1
crw-rw---- 1 root dialout 188, 2 Jan  3 11:20 /dev/ttyUSB2
crw-rw---- 1 root dialout 188, 3 Jan  3 11:21 /dev/ttyUSB3
linux-ff41:~ #