Hi,
I did this:
(1) removed "modules-load=dwc2"
(2) changed "configs/c.1/strings/0x409/configuration" to "echo "Config 1: MIDI" > configs/c.1/strings/0x409/configuration"
(3) /usr/local/bin/setup_usb_midi.sh:(4) sudo chmod +x /usr/local/bin/setup_usb_midi.sh
(5) created service file in /etc/systemd/system/usb_midi.service(6) sudo systemctl enable usb_midi.service
(7) sudo systemctl start usb_midi.service
When checking status of the service, I got this:
failed to create symbolic link 'configs/c.1/midi.usb0': File exists
I connected the RPI5 via a USB-C/USB3 hub with the PD. So, I am able to feed power to the RPi and also convert the RPi's USB-C to USB3. I have only a USB-C/USB3 hub. You mentioned that device mode on the RPi5 is supported with USB2 only. I am confused: Do I have to set the RPi's USB-C port to USB2 mode? How? If it is in USB2 mode, will it accept the PD from the connected USB-C hub? I think I could connect a USB3 port on the hub to a USB2 port on the host, and the entire chain will be set to USB2 mode, but the only hosts I have are USB3/USB-C.
I did this:
(1) removed "modules-load=dwc2"
(2) changed "configs/c.1/strings/0x409/configuration" to "echo "Config 1: MIDI" > configs/c.1/strings/0x409/configuration"
(3) /usr/local/bin/setup_usb_midi.sh:
Code:
#!/bin/bash# Check if the script is run as rootif [[ $EUID -ne 0 ]]; then echo "This script must be run as root" exit 1fi# Create the USB gadgetmkdir -p /sys/kernel/config/usb_gadget/midi_gadgetcd /sys/kernel/config/usb_gadget/midi_gadget# Set the USB device attributesecho 0x1d6b > idVendor # Linux Foundationecho 0x0104 > idProduct # Multifunction Composite Gadget# Set the device stringsmkdir -p strings/0x409echo "fedcba9876543210" > strings/0x409/serialnumberecho "My Manufacturer" > strings/0x409/manufacturerecho "My MIDI Gadget" > strings/0x409/product# Create the configurationmkdir -p configs/c.1/strings/0x409echo "Config 1: MIDI" > configs/c.1/strings/0x409/configurationecho 250 > configs/c.1/MaxPower# Create the MIDI functionmkdir -p functions/midi.usb0echo "0" > functions/midi.usb0/in_jack_idecho "1" > functions/midi.usb0/out_jack_id# Bind the configuration to the functionln -s functions/midi.usb0 configs/c.1/# Enable the USB gadgetls /sys/class/udc > UDC(5) created service file in /etc/systemd/system/usb_midi.service
Code:
[Unit]Description=USB MIDI Gadget SetupAfter=multi-user.target[Service]Type=oneshotExecStart=/usr/local/bin/setup_usb_midi.shRemainAfterExit=true[Install]WantedBy=multi-user.target(7) sudo systemctl start usb_midi.service
When checking status of the service, I got this:
failed to create symbolic link 'configs/c.1/midi.usb0': File exists
I connected the RPI5 via a USB-C/USB3 hub with the PD. So, I am able to feed power to the RPi and also convert the RPi's USB-C to USB3. I have only a USB-C/USB3 hub. You mentioned that device mode on the RPi5 is supported with USB2 only. I am confused: Do I have to set the RPi's USB-C port to USB2 mode? How? If it is in USB2 mode, will it accept the PD from the connected USB-C hub? I think I could connect a USB3 port on the hub to a USB2 port on the host, and the entire chain will be set to USB2 mode, but the only hosts I have are USB3/USB-C.
Statistics: Posted by jared_su — Mon Jul 29, 2024 10:51 am