Advanced users • USB MIDI device on Raspberry Pi can't make it work!

Code:

[cm4]# Enable host mode on the 2711 built-in XHCI USB controller.# This line should be removed if the legacy DWC2 controller is required# (e.g. for USB device mode) or if USB support is not required.# otg_mode=1[cm5]# dtoverlay=dwc2,dr_mode=hostdtoverlay=dwc2,dr_mode=peripheral

Code:

console=serial0,115200 console=tty1 root=PARTUUID=1299cf8a-02 rootfstype=ext4 fsck.repair=yes rootwait modules-load=dwc2 cfg80211.ieee80211_regdom=GB

Code:

#!/bin/bash# Check if the script is run as rootif [[ $EUID -ne 0 ]]; then   echo "This script must be run as root"   exit 1fi# Load USB gadget modulesmodprobe libcomposite# Create the gadget directorymkdir -p /sys/kernel/config/usb_gadget/midi_gadgetcd /sys/kernel/config/usb_gadget/midi_gadget# Set USB device attributesecho 0x1d6b > idVendor  # Linux Foundationecho 0x0104 > idProduct # Multifunction Composite Gadget# echo 0x0100 > bcdDevice # v1.0.0# echo 0x0200 > bcdUSB    # USB2# Set device description stringsmkdir -p strings/0x409echo "001" > strings/0x409/serialnumberecho "manufacturer" > strings/0x409/manufacturerecho "product" > strings/0x409/product# Create configurationmkdir -p configs/c.1/strings/0x409echo "Config 1: MIDI" > configs/c.1/strings/0x409/configurationecho 250 > configs/c.1/MaxPower# Create MIDI functionmkdir -p functions/midi.usb0# echo "0" > functions/midi.usb0/in_jack_id# echo "1" > functions/midi.usb0/out_jack_id# Bind the configuration to the functionln -s functions/midi.usb0 configs/c.1# Enable the USB gadgetUDC=$(ls /sys/class/udc | head -n 1)echo "$UDC" > UDC

Code:

[Unit]Description=USB MIDI GadgetAfter=multi-user.target[Service]Type=oneshotRemainAfterExit=trueExecStart=/usr/bin/sudo /usr/local/bin/setup_usb_midi.sh[Install]WantedBy=multi-user.target