Stimmt habe ich wohl ein Gehirnfurz gehabt.
lsusb :
pi@pekaway:~ $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 10c4:ea60 Silicon Labs CP210x UART Bridge
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@pekaway:~ $ ls -l /dev/tty*
crw-rw-rw- 1 root tty 5, 0 Oct 17 18:35 /dev/tty
crw–w---- 1 root tty 4, 0 Oct 17 18:35 /dev/tty0
crw–w---- 1 root tty 4, 1 Oct 17 18:35 /dev/tty1
crw–w---- 1 root tty 4, 10 Oct 17 18:35 /dev/tty10
crw–w---- 1 root tty 4, 11 Oct 17 18:35 /dev/tty11
crw–w---- 1 root tty 4, 12 Oct 17 18:35 /dev/tty12
crw–w---- 1 root tty 4, 13 Oct 17 18:35 /dev/tty13
crw–w---- 1 root tty 4, 14 Oct 17 18:35 /dev/tty14
crw–w---- 1 root tty 4, 15 Oct 17 18:35 /dev/tty15
crw–w---- 1 root tty 4, 16 Oct 17 18:35 /dev/tty16
crw–w---- 1 root tty 4, 17 Oct 17 18:35 /dev/tty17
crw–w---- 1 root tty 4, 18 Oct 17 18:35 /dev/tty18
crw–w---- 1 root tty 4, 19 Oct 17 18:35 /dev/tty19
crw–w---- 1 root tty 4, 2 Oct 17 18:35 /dev/tty2
crw–w---- 1 root tty 4, 20 Oct 17 18:35 /dev/tty20
crw–w---- 1 root tty 4, 21 Oct 17 18:35 /dev/tty21
crw–w---- 1 root tty 4, 22 Oct 17 18:35 /dev/tty22
crw–w---- 1 root tty 4, 23 Oct 17 18:35 /dev/tty23
crw–w---- 1 root tty 4, 24 Oct 17 18:35 /dev/tty24
crw–w---- 1 root tty 4, 25 Oct 17 18:35 /dev/tty25
crw–w---- 1 root tty 4, 26 Oct 17 18:35 /dev/tty26
crw–w---- 1 root tty 4, 27 Oct 17 18:35 /dev/tty27
crw–w---- 1 root tty 4, 28 Oct 17 18:35 /dev/tty28
crw–w---- 1 root tty 4, 29 Oct 17 18:35 /dev/tty29
crw–w---- 1 root tty 4, 3 Oct 17 18:35 /dev/tty3
crw–w---- 1 root tty 4, 30 Oct 17 18:35 /dev/tty30
crw–w---- 1 root tty 4, 31 Oct 17 18:35 /dev/tty31
crw–w---- 1 root tty 4, 32 Oct 17 18:35 /dev/tty32
crw–w---- 1 root tty 4, 33 Oct 17 18:35 /dev/tty33
crw–w---- 1 root tty 4, 34 Oct 17 18:35 /dev/tty34
crw–w---- 1 root tty 4, 35 Oct 17 18:35 /dev/tty35
crw–w---- 1 root tty 4, 36 Oct 17 18:35 /dev/tty36
crw–w---- 1 root tty 4, 37 Oct 17 18:35 /dev/tty37
crw–w---- 1 root tty 4, 38 Oct 17 18:35 /dev/tty38
crw–w---- 1 root tty 4, 39 Oct 17 18:35 /dev/tty39
crw–w---- 1 root tty 4, 4 Oct 17 18:35 /dev/tty4
crw–w---- 1 root tty 4, 40 Oct 17 18:35 /dev/tty40
crw–w---- 1 root tty 4, 41 Oct 17 18:35 /dev/tty41
crw–w---- 1 root tty 4, 42 Oct 17 18:35 /dev/tty42
crw–w---- 1 root tty 4, 43 Oct 17 18:35 /dev/tty43
crw–w---- 1 root tty 4, 44 Oct 17 18:35 /dev/tty44
crw–w---- 1 root tty 4, 45 Oct 17 18:35 /dev/tty45
crw–w---- 1 root tty 4, 46 Oct 17 18:35 /dev/tty46
crw–w---- 1 root tty 4, 47 Oct 17 18:35 /dev/tty47
crw–w---- 1 root tty 4, 48 Oct 17 18:35 /dev/tty48
crw–w---- 1 root tty 4, 49 Oct 17 18:35 /dev/tty49
crw–w---- 1 root tty 4, 5 Oct 17 18:35 /dev/tty5
crw–w---- 1 root tty 4, 50 Oct 17 18:35 /dev/tty50
crw–w---- 1 root tty 4, 51 Oct 17 18:35 /dev/tty51
crw–w---- 1 root tty 4, 52 Oct 17 18:35 /dev/tty52
crw–w---- 1 root tty 4, 53 Oct 17 18:35 /dev/tty53
crw–w---- 1 root tty 4, 54 Oct 17 18:35 /dev/tty54
crw–w---- 1 root tty 4, 55 Oct 17 18:35 /dev/tty55
crw–w---- 1 root tty 4, 56 Oct 17 18:35 /dev/tty56
crw–w---- 1 root tty 4, 57 Oct 17 18:35 /dev/tty57
crw–w---- 1 root tty 4, 58 Oct 17 18:35 /dev/tty58
crw–w---- 1 root tty 4, 59 Oct 17 18:35 /dev/tty59
crw–w---- 1 root tty 4, 6 Oct 17 18:35 /dev/tty6
crw–w---- 1 root tty 4, 60 Oct 17 18:35 /dev/tty60
crw–w---- 1 root tty 4, 61 Oct 17 18:35 /dev/tty61
crw–w---- 1 root tty 4, 62 Oct 17 18:35 /dev/tty62
crw–w---- 1 root tty 4, 63 Oct 17 18:35 /dev/tty63
crw–w---- 1 root tty 4, 7 Oct 17 18:35 /dev/tty7
crw–w---- 1 root tty 4, 8 Oct 17 18:35 /dev/tty8
crw–w---- 1 root tty 4, 9 Oct 17 18:35 /dev/tty9
crw-rw---- 1 root dialout 204, 69 Oct 17 18:35 /dev/ttyAMA5
lrwxrwxrwx 1 root root 7 Oct 17 18:35 /dev/ttyPKW2 → ttyUSB0
crw------- 1 root root 5, 3 Oct 17 18:35 /dev/ttyprintk
crw-rw---- 1 root dialout 4, 64 Oct 17 18:35 /dev/ttyS0
crw-rw---- 1 root dialout 188, 0 Oct 17 18:35 /dev/ttyUSB0