Samuca: Created page with "{{rockpi4_header}} {{Languages|rockpi4/dev/usbnet}} ROCK Pi 4 > Development > USB Device Network O ROCK Pi 4 po..."

2019-07-21T15:19:01Z

Created page with "{{rockpi4_header}} {{Languages|rockpi4/dev/usbnet}} ROCK Pi 4 > Development > USB Device Network O ROCK Pi 4 po..."

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[[rockpi4 | ROCK Pi 4]] > [[rockpi4/dev | Development]] > [[rockpi4/dev/usbnet | USB Device Network]]

O ROCK Pi 4 possui uma porta USB OTG, que pode ser configurada como dispositivos USB com o driver de dispositivo USB do Linux, suportando várias funções como um dispositivo USB, como Dispositivo de Armazenamento Maciço e rede USB. Descrevemos como configurar o USBNET com um PC HOST.

=== Requisitos===

* ROCK Pi 4
* USB 3.0 or 2.0 macho tipo A para cabo macho tipo A
* PC host executando o Linux OS

=== Versão do kernel ===

O driver do dispositivo USB deve estar ativado para configurar o usb net. O kernel deve ser mais recente [https://github.com/radxa/kernel/commit/5e70f1495c248cf6ffa62d974ada7fc2172912cd 5e70f1495c248cf6ffa62d974ada7fc2172912cd].
Para o Debian Stretch ou Ubuntu, você pode instalar o kernel mais recente [http://apt.radxa.com apt.radxa.com]. For how to setup Radxa Apt, refer [[rockpi4/radxa-apt]].

=== Carregar módulo do kernel===
* inserir módulo do kernel
No ROCK Pi 4

sudo modprobe g_ether

dmesg shoule output the folowing:
<pre>
[ 388.650909] using random self ethernet address
[ 388.651332] using random host ethernet address
[ 388.653303] usb0: HOST MAC 7a:db:87:57:94:30
[ 388.654077] usb0: MAC 12:d4:c3:ea:d1:31
[ 388.654490] using random self ethernet address
[ 388.654899] using random host ethernet address
[ 388.655425] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
[ 388.656016] g_ether gadget: g_ether ready
</pre>

Bring up the usb0 device

sudo ifconfig usb0 up

Agora você deve ter o usb0 no ROCK Pi 4 ativado.

* Conecte o ROCK Pi 4 ao PC com o cabo USB A para A, certifique-se de que o interruptor do OTG está no lado '' 'device' ''.
No PC host ubuntu 16.04, o '' 'dmesg' '' dá algo como abaixo:

<pre>
[714332.981224] usb 1-2: USB disconnect, device number 4
[714332.981402] cdc_ether 1-2:1.0 enp0s20f0u2: unregister 'cdc_ether' usb-0000:00:14.0-2, CDC Ethernet Device
[714344.746165] usb 1-2: new high-speed USB device number 5 using xhci_hcd
[714344.906872] usb 1-2: New USB device found, idVendor=0525, idProduct=a4a2
[714344.906878] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[714344.906882] usb 1-2: Product: RNDIS/Ethernet Gadget
[714344.906887] usb 1-2: Manufacturer: Linux 4.4.154-ge855bba-dirty with dwc3-gadget
[714344.910058] cdc_subset: probe of 1-2:1.0 failed with error -22
[714344.912272] cdc_ether 1-2:1.0 usb0: register 'cdc_ether' at usb-0000:00:14.0-2, CDC Ethernet Device, 76:2d:db:75:e9:68
[714344.920359] cdc_ether 1-2:1.0 enp0s20f0u2: renamed from usb0
[714344.958391] IPv6: ADDRCONF(NETDEV_UP): enp0s20f0u2: link is not ready
[714362.107471] usb 1-2: USB disconnect, device number 5
[714362.107601] cdc_ether 1-2:1.0 enp0s20f0u2: unregister 'cdc_ether' usb-0000:00:14.0-2, CDC Ethernet Device
</pre>

'''enp0s20f0u2''' é a "placa de rede USB" para o ROCK Pi 4. '' 'Ifconfig enp0s20f0u2' '' nos dá a informação sobre isso.

=== Configurar rede USB ===
No ROCK Pi 4.

IP=10.0.1.1
HOST_IP=10.0.1.2
sudo ifconfig usb0 $IP netmask 255.255.255.0
route

No PC host

HOST_IP=10.0.1.2
sudo ifconfig enp0s20f0u2 $HOST_IP netmask 255.255.255.0

Teste a rede, no ROCK Pi 4

ping $HOST_IP

Teste o tráfego de rede no PC host

iperf -s

na ROCK Pi 4:

iperf -c $HOST_IP

Rockpi4/dev/usbnet/pt BR - Revision history

Samuca: Created page with "{{rockpi4_header}} {{Languages|rockpi4/dev/usbnet}} ROCK Pi 4 > Development > USB Device Network O ROCK Pi 4 po..."