OTGで 複数の機器を有効にする。
root@OrangePi:~# cat /etc/modules # /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines beginning with "#" are ignored. g_cdc
Raspi からみると・・・ usb0 ネットワークが出現した
takuya@raspi-ubuntu:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 8: usb0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether d6:f8:81:1e:7c:23 brd ff:ff:ff:ff:ff:ff
USBを見てみると・・・
takuya@raspi-ubuntu:~$ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 006: ID 0525:a4aa Netchip Technology, Inc. Linux-USB CDC Composite Gadge (Ethernet and ACM) Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Ethernetカードとして認識されている強い。
OrangePi Zero 側からみてみると。usb0が出現した
root@OrangePi:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 3: usb0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 2a:80:fe:93:0b:78 brd ff:ff:ff:ff:ff:ff
通信してみる。
takuya@raspi-ubuntu:~$ sudo ip link set usb0 up takuya@raspi-ubuntu:~$ sudo ip addr add 10.1.1.1/24 dev usb0
root@OrangePi:~# ip link set usb0 up root@OrangePi:~# ip addr add 10.1.1.2/24 dev usb0
ping 疎通確認
takuya@raspi-ubuntu:~$ ping 10.1.1.2 PING 10.1.1.2 (10.1.1.2) 56(84) bytes of data. 64 bytes from 10.1.1.2: icmp_seq=1 ttl=64 time=0.474 ms 64 bytes from 10.1.1.2: icmp_seq=2 ttl=64 time=0.352 ms
iperf3 で速度チェック
root@OrangePi:~# iperf3 -c 10.1.1.1 Connecting to host 10.1.1.1, port 5201 [ 4] local 10.1.1.2 port 51210 connected to 10.1.1.1 port 5201 [ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 11.7 MBytes 97.8 Mbits/sec 0 146 KBytes [ 4] 1.00-2.00 sec 7.46 MBytes 62.4 Mbits/sec 0 232 KBytes [ 4] 2.00-3.00 sec 2.55 MBytes 21.4 Mbits/sec 0 253 KBytes [ 4] 3.00-4.00 sec 5.28 MBytes 44.4 Mbits/sec 0 253 KBytes [ 4] 4.00-5.02 sec 9.69 MBytes 79.6 Mbits/sec 0 253 KBytes [ 4] 5.02-6.00 sec 4.66 MBytes 39.9 Mbits/sec 0 253 KBytes [ 4] 6.00-7.01 sec 7.77 MBytes 64.9 Mbits/sec 0 253 KBytes [ 4] 7.01-8.00 sec 2.17 MBytes 18.3 Mbits/sec 0 253 KBytes [ 4] 8.00-9.00 sec 2.49 MBytes 20.9 Mbits/sec 0 253 KBytes [ 4] 9.00-10.01 sec 10.3 MBytes 85.7 Mbits/sec 0 253 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.01 sec 64.0 MBytes 53.7 Mbits/sec 0 sender [ 4] 0.00-10.01 sec 63.5 MBytes 53.3 Mbits/sec receiver iperf Done.
逆も念の為。
takuya@raspi-ubuntu:~$ iperf3 -c 10.1.1.2 Connecting to host 10.1.1.2, port 5201 [ 5] local 10.1.1.1 port 35584 connected to 10.1.1.2 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 10.7 MBytes 90.1 Mbits/sec 0 52.3 KBytes [ 5] 1.00-2.00 sec 10.5 MBytes 87.7 Mbits/sec 0 52.3 KBytes [ 5] 2.00-3.00 sec 10.5 MBytes 88.2 Mbits/sec 0 52.3 KBytes [ 5] 3.00-4.00 sec 10.5 MBytes 88.5 Mbits/sec 0 52.3 KBytes [ 5] 4.00-5.00 sec 10.4 MBytes 87.4 Mbits/sec 0 52.3 KBytes [ 5] 5.00-6.00 sec 9.99 MBytes 83.8 Mbits/sec 0 83.4 KBytes [ 5] 6.00-7.00 sec 1.07 MBytes 8.99 Mbits/sec 1 197 KBytes [ 5] 7.00-8.00 sec 827 KBytes 6.78 Mbits/sec 0 225 KBytes [ 5] 8.00-9.00 sec 636 KBytes 5.21 Mbits/sec 1 247 KBytes [ 5] 9.00-10.00 sec 5.22 MBytes 43.8 Mbits/sec 0 274 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 70.4 MBytes 59.0 Mbits/sec 2 sender [ 5] 0.00-10.00 sec 69.2 MBytes 58.1 Mbits/sec receiver iperf Done. takuya@raspi-ubuntu:~$
そこまで速度が出るわけじゃないけど、便利。
ethtool では情報が出ないですね
takuya@raspi-ubuntu:~$ sudo ethtool usb0
Settings for usb0:
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
root@OrangePi:~# ethtool usb0
Settings for usb0:
Link detected: yes
他にもマスストレージ、オーディオになれる。強い。
https://qiita.com/alt-core/items/a3b37a96e16e771e6cb1 https://linux.yebisu.jp/memo/1160
