pi@raspberrypi-1:~ $ ls -al /dev
total 4
drwxr-xr-x 15 root root 3420 Aug 16 23:28 .
drwxr-xr-x 21 root root 4096 Jun 1 20:18 ..
crw-r--r-- 1 root root 10, 235 Aug 16 23:26 autofs
drwxr-xr-x 2 root root 580 Aug 16 23:26 block
crw------- 1 root root 10, 234 Aug 16 23:26 btrfs-control
drwxr-xr-x 3 root root 60 Jan 1 1970 bus
crw------- 1 root root 10, 63 Aug 16 23:26 cachefiles
drwxr-xr-x 2 root root 2640 Aug 16 23:27 char
crw------- 1 root root 5, 1 Aug 16 23:26 console
crw------- 1 root root 10, 62 Aug 16 23:26 cpu_dma_latency
crw------- 1 root root 10, 203 Aug 16 23:26 cuse
drwxr-xr-x 7 root root 140 Aug 16 23:26 disk
crw-rw---- 1 root video 29, 0 Aug 16 23:26 fb0
lrwxrwxrwx 1 root root 13 Nov 3 2016 fd -> /proc/self/fd
crw-rw-rw- 1 root root 1, 7 Aug 16 23:26 full
crw-rw-rw- 1 root root 10, 229 Aug 16 23:27 fuse
crw-rw---- 1 root gpio 254, 0 Aug 16 23:26 gpiochip0
crw-rw---- 1 root gpio 254, 1 Aug 16 23:26 gpiochip1
crw-rw---- 1 root gpio 254, 2 Aug 16 23:26 gpiochip2
crw-rw---- 1 root gpio 248, 0 Aug 16 23:26 gpiomem
crw------- 1 root root 247, 0 Aug 16 23:26 hidraw0
crw------- 1 root root 247, 1 Aug 16 23:26 hidraw1
crw------- 1 root root 10, 183 Aug 16 23:26 hwrng
lrwxrwxrwx 1 root root 25 Nov 3 2016 initctl -> /run/systemd/initctl/fifo
drwxr-xr-x 2 root root 60 Jan 1 1970 input
crw-r--r-- 1 root root 1, 11 Aug 16 23:26 kmsg
lrwxrwxrwx 1 root root 28 Nov 3 2016 log -> /run/systemd/journal/dev-log
brw-rw---- 1 root disk 7, 0 Aug 16 23:26 loop0
brw-rw---- 1 root disk 7, 1 Aug 16 23:26 loop1
brw-rw---- 1 root disk 7, 2 Aug 16 23:26 loop2
brw-rw---- 1 root disk 7, 3 Aug 16 23:26 loop3
brw-rw---- 1 root disk 7, 4 Aug 16 23:26 loop4
brw-rw---- 1 root disk 7, 5 Aug 16 23:26 loop5
brw-rw---- 1 root disk 7, 6 Aug 16 23:26 loop6
brw-rw---- 1 root disk 7, 7 Aug 16 23:26 loop7
crw-rw---- 1 root disk 10, 237 Aug 16 23:26 loop-control
drwxr-xr-x 2 root root 60 Aug 16 23:26 mapper
crw-r----- 1 root kmem 1, 1 Aug 16 23:26 mem
crw------- 1 root root 10, 59 Aug 16 23:26 memory_bandwidth
brw-rw---- 1 root disk 179, 0 Aug 16 23:26 mmcblk0
brw-rw---- 1 root disk 179, 1 Aug 16 23:26 mmcblk0p1
brw-rw---- 1 root disk 179, 2 Aug 16 23:26 mmcblk0p2
drwxrwxrwt 2 root root 40 Jan 1 1970 mqueue
drwxr-xr-x 2 root root 60 Aug 16 23:26 net
crw------- 1 root root 10, 61 Aug 16 23:26 network_latency
crw------- 1 root root 10, 60 Aug 16 23:26 network_throughput
crw-rw-rw- 1 root root 1, 3 Aug 16 23:26 null
crw------- 1 root root 108, 0 Aug 16 23:26 ppp
crw-rw-rw- 1 root tty 5, 2 Aug 16 23:33 ptmx
drwxr-xr-x 2 root root 0 Nov 3 2016 pts
brw-rw---- 1 root disk 1, 0 Aug 16 23:26 ram0
brw-rw---- 1 root disk 1, 1 Aug 16 23:26 ram1
brw-rw---- 1 root disk 1, 10 Aug 16 23:26 ram10
brw-rw---- 1 root disk 1, 11 Aug 16 23:26 ram11
brw-rw---- 1 root disk 1, 12 Aug 16 23:26 ram12
brw-rw---- 1 root disk 1, 13 Aug 16 23:26 ram13
brw-rw---- 1 root disk 1, 14 Aug 16 23:26 ram14
brw-rw---- 1 root disk 1, 15 Aug 16 23:26 ram15
brw-rw---- 1 root disk 1, 2 Aug 16 23:26 ram2
brw-rw---- 1 root disk 1, 3 Aug 16 23:26 ram3
brw-rw---- 1 root disk 1, 4 Aug 16 23:26 ram4
brw-rw---- 1 root disk 1, 5 Aug 16 23:26 ram5
brw-rw---- 1 root disk 1, 6 Aug 16 23:26 ram6
brw-rw---- 1 root disk 1, 7 Aug 16 23:26 ram7
brw-rw---- 1 root disk 1, 8 Aug 16 23:26 ram8
brw-rw---- 1 root disk 1, 9 Aug 16 23:26 ram9
crw-rw-rw- 1 root root 1, 8 Aug 16 23:26 random
drwxr-xr-x 2 root root 60 Jan 1 1970 raw
crw-rw-r-- 1 root netdev 10, 58 Aug 16 23:26 rfkill
lrwxrwxrwx 1 root root 7 Aug 16 23:26 serial1 -> ttyAMA0
drwxrwxrwt 2 root root 40 Nov 3 2016 shm
drwxr-xr-x 4 root root 240 Aug 16 23:27 snd
lrwxrwxrwx 1 root root 15 Nov 3 2016 stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root 15 Nov 3 2016 stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root 15 Nov 3 2016 stdout -> /proc/self/fd/1
crw-rw-rw- 1 root tty 5, 0 Aug 16 23:26 tty
crw--w---- 1 root tty 4, 0 Aug 16 23:26 tty0
crw--w---- 1 root tty 4, 1 Aug 16 23:27 tty1
crw--w---- 1 root tty 4, 10 Aug 16 23:26 tty10
crw--w---- 1 root tty 4, 11 Aug 16 23:26 tty11
crw--w---- 1 root tty 4, 12 Aug 16 23:26 tty12
crw--w---- 1 root tty 4, 13 Aug 16 23:26 tty13
crw--w---- 1 root tty 4, 14 Aug 16 23:26 tty14
crw--w---- 1 root tty 4, 15 Aug 16 23:26 tty15
crw--w---- 1 root tty 4, 16 Aug 16 23:26 tty16
crw--w---- 1 root tty 4, 17 Aug 16 23:26 tty17
crw--w---- 1 root tty 4, 18 Aug 16 23:26 tty18
crw--w---- 1 root tty 4, 19 Aug 16 23:26 tty19
crw--w---- 1 root tty 4, 2 Aug 16 23:26 tty2
crw--w---- 1 root tty 4, 20 Aug 16 23:26 tty20
crw--w---- 1 root tty 4, 21 Aug 16 23:26 tty21
crw--w---- 1 root tty 4, 22 Aug 16 23:26 tty22
crw--w---- 1 root tty 4, 23 Aug 16 23:26 tty23
crw--w---- 1 root tty 4, 24 Aug 16 23:26 tty24
crw--w---- 1 root tty 4, 25 Aug 16 23:26 tty25
crw--w---- 1 root tty 4, 26 Aug 16 23:26 tty26
crw--w---- 1 root tty 4, 27 Aug 16 23:26 tty27
crw--w---- 1 root tty 4, 28 Aug 16 23:26 tty28
crw--w---- 1 root tty 4, 29 Aug 16 23:26 tty29
crw--w---- 1 root tty 4, 3 Aug 16 23:26 tty3
crw--w---- 1 root tty 4, 30 Aug 16 23:26 tty30
crw--w---- 1 root tty 4, 31 Aug 16 23:26 tty31
crw--w---- 1 root tty 4, 32 Aug 16 23:26 tty32
crw--w---- 1 root tty 4, 33 Aug 16 23:26 tty33
crw--w---- 1 root tty 4, 34 Aug 16 23:26 tty34
crw--w---- 1 root tty 4, 35 Aug 16 23:26 tty35
crw--w---- 1 root tty 4, 36 Aug 16 23:26 tty36
crw--w---- 1 root tty 4, 37 Aug 16 23:26 tty37
crw--w---- 1 root tty 4, 38 Aug 16 23:26 tty38
crw--w---- 1 root tty 4, 39 Aug 16 23:26 tty39
crw--w---- 1 root tty 4, 4 Aug 16 23:26 tty4
crw--w---- 1 root tty 4, 40 Aug 16 23:26 tty40
crw--w---- 1 root tty 4, 41 Aug 16 23:26 tty41
crw--w---- 1 root tty 4, 42 Aug 16 23:26 tty42
crw--w---- 1 root tty 4, 43 Aug 16 23:26 tty43
crw--w---- 1 root tty 4, 44 Aug 16 23:26 tty44
crw--w---- 1 root tty 4, 45 Aug 16 23:26 tty45
crw--w---- 1 root tty 4, 46 Aug 16 23:26 tty46
crw--w---- 1 root tty 4, 47 Aug 16 23:26 tty47
crw--w---- 1 root tty 4, 48 Aug 16 23:26 tty48
crw--w---- 1 root tty 4, 49 Aug 16 23:26 tty49
crw--w---- 1 root tty 4, 5 Aug 16 23:26 tty5
crw--w---- 1 root tty 4, 50 Aug 16 23:26 tty50
crw--w---- 1 root tty 4, 51 Aug 16 23:26 tty51
crw--w---- 1 root tty 4, 52 Aug 16 23:26 tty52
crw--w---- 1 root tty 4, 53 Aug 16 23:26 tty53
crw--w---- 1 root tty 4, 54 Aug 16 23:26 tty54
crw--w---- 1 root tty 4, 55 Aug 16 23:26 tty55
crw--w---- 1 root tty 4, 56 Aug 16 23:26 tty56
crw--w---- 1 root tty 4, 57 Aug 16 23:26 tty57
crw--w---- 1 root tty 4, 58 Aug 16 23:26 tty58
crw--w---- 1 root tty 4, 59 Aug 16 23:26 tty59
crw--w---- 1 root tty 4, 6 Aug 16 23:26 tty6
crw--w---- 1 root tty 4, 60 Aug 16 23:26 tty60
crw--w---- 1 root tty 4, 61 Aug 16 23:26 tty61
crw--w---- 1 root tty 4, 62 Aug 16 23:26 tty62
crw--w---- 1 root tty 4, 63 Aug 16 23:26 tty63
crw--w---- 1 root tty 4, 7 Aug 16 23:27 tty7
crw--w---- 1 root tty 4, 8 Aug 16 23:26 tty8
crw--w---- 1 root tty 4, 9 Aug 16 23:26 tty9
crw-rw---- 1 root dialout 204, 64 Aug 16 23:26 ttyAMA0
crw------- 1 root root 5, 3 Aug 16 23:26 ttyprintk
lrwxrwxrwx 1 root root 10 Aug 16 23:28 ttyUSB0 -> /dev/pts/1
crw------- 1 root root 10, 239 Aug 16 23:26 uhid
crw------- 1 root root 10, 223 Aug 16 23:26 uinput
crw-rw-rw- 1 root root 1, 9 Aug 16 23:26 urandom
drwxr-xr-x 2 root root 80 Nov 3 2016 usb
crw-rw---- 1 root video 245, 0 Aug 16 23:26 vchiq
crw-rw---- 1 root video 249, 0 Aug 16 23:26 vcio
crw------- 1 root root 250, 0 Aug 16 23:26 vc-mem
crw-rw---- 1 root tty 7, 0 Aug 16 23:26 vcs
crw-rw---- 1 root tty 7, 1 Aug 16 23:26 vcs1
crw-rw---- 1 root tty 7, 2 Aug 16 23:26 vcs2
crw-rw---- 1 root tty 7, 3 Aug 16 23:26 vcs3
crw-rw---- 1 root tty 7, 4 Aug 16 23:26 vcs4
crw-rw---- 1 root tty 7, 5 Aug 16 23:26 vcs5
crw-rw---- 1 root tty 7, 6 Aug 16 23:26 vcs6
crw-rw---- 1 root tty 7, 7 Aug 16 23:27 vcs7
crw-rw---- 1 root tty 7, 128 Aug 16 23:26 vcsa
crw-rw---- 1 root tty 7, 129 Aug 16 23:26 vcsa1
crw-rw---- 1 root tty 7, 130 Aug 16 23:26 vcsa2
crw-rw---- 1 root tty 7, 131 Aug 16 23:26 vcsa3
crw-rw---- 1 root tty 7, 132 Aug 16 23:26 vcsa4
crw-rw---- 1 root tty 7, 133 Aug 16 23:26 vcsa5
crw-rw---- 1 root tty 7, 134 Aug 16 23:26 vcsa6
crw-rw---- 1 root tty 7, 135 Aug 16 23:27 vcsa7
crw-rw---- 1 root video 246, 0 Aug 16 23:26 vcsm
crw------- 1 root root 10, 137 Aug 16 23:26 vhci
crw------- 1 root root 10, 130 Aug 16 23:26 watchdog
crw------- 1 root root 252, 0 Aug 16 23:26 watchdog0
crw-rw-rw- 1 root root 1, 5 Aug 16 23:26 zero
I’m also looking at raspi-config to see if that could help me