Linux Magazine #1 2023: Deel je USB-apparaten over het netwerk met USB/IP

  • March 14, 2023
  • 0

Kernmodule van usbip automatisch laden:

server $ echo 'usbip-host' | sudo tee /etc/modules-load.d/usbip.conf

Via de client opvragen welke apparaten de server deelt

client $ usbip list --remote=192.168.0.237
Exportable USB devices
======================
 - usbip.local
      1-1.1: Realtek Semiconductor Corp. : RTL2838 DVB-T (0bda:2838)
           : /sys/devices/platform/soc/20980000.usb/usb1/1-1/1-1.1
           : (Defined at Interface level) (00/00/00)

Opvragen welke door usbip gedeelde apparaten lokaal in gebruik zijn

client $ sudo usbip port
Imported USB devices
====================
Port 00:  at High Speed(480Mbps)
       Realtek Semiconductor Corp. : RTL2838 DVB-T (0bda:2838)
       3-1 -> usbip://192.168.0.237:3240/1-1.1
           -> remote bus/dev 001/003

Stoppen met een apparaat delen

server $ sudo usbip unbind --busid=1-1.1
usbip: info: unbind device on busid 1-1.1: complete

Systemd-service in /etc/systemd/system/usbipd.service

[Unit]
Description=USB/IP server
After=network-online.target

[Service]
ExecStart=/usr/sbin/usbipd

[Install]
WantedBy=multi-user.target

systemd-script in /etc/systemd/system/usbip-bind@.service

[Unit]
Description=USB-IP binding to device on bus id %I
After=network-online.target usbipd.service
Wants=network-online.target
Requires=usbipd.service

[Service]
Type=simple
ExecStart=/usr/sbin/usbip bind -b %i
RemainAfterExit=yes
ExecStop=/usr/sbin/usbip unbind -b %i
Restart=on-failure

[Install]
WantedBy=multi-user.target

Aanpassen ExecStart en ExecStop

ExecStart=/bin/sh -c "/usr/sbin/usbip bind --$(/usr/sbin/usbip list -p -l | grep '#usbid=%i#' | cut '-d#' -f1)"
ExecStop=/bin/sh -c "/usr/sbin/usbip unbind --$(/usr/sbin/usbip list -p -l | grep '#usbid=%i#' | cut '-d#' -f1)"

Script in /etc/systemd/system/usbip-client@.service

[Unit]
Description=USB/IP client
After=network-online.target

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/sh -c "/usr/bin/usbip attach -r 192.168.0.237 -b $(/usr/bin/usbip list -r 192.168.0.237 | grep '%i' | cut -d: -f1)"
ExecStop=/bin/sh -c "/usr/bin/usbip detach --port=$(/usr/bin/usbip port | grep '' | sed -E 's/^Port ([0-9][0-9]).*/\1/')"

[Install]
WantedBy=multi-user.target