mirror of
https://github.com/commaai/agnos-builder.git
synced 2026-09-12 11:23:41 +08:00
Shane Smiskol
161d0d4c50
When userdata is corrupt or unmounted, ADB should still be available for debugging. Without this, there's no way to access the device during the recovery/reset flow. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
73 lines
1.8 KiB
Bash
Executable File
73 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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setup() {
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# Check if /config is already mounted
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if ! mountpoint -q /config; then
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sudo mount -t configfs none /config
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else
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echo "/config is already mounted."
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fi
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# Create USB gadget directory structure
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sudo mkdir -p /config/usb_gadget/g1
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cd /config/usb_gadget/g1
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sudo mkdir -p strings/0x409
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sudo mkdir -p configs/c.1/strings/0x409
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sudo mkdir -p functions/ncm.0
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# Set Vendor and Product ID
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echo 0x04D8 | sudo tee idVendor
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echo 0x1234 | sudo tee idProduct
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# Set strings
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echo "$(cat /proc/cmdline | sed -e 's/^.*androidboot.serialno=//' -e 's/ .*$//')" | sudo tee strings/0x409/serialnumber
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echo "comma.ai" | sudo tee strings/0x409/manufacturer
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echo "Linux USB Gadget" | sudo tee strings/0x409/product
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echo 250 | sudo tee configs/c.1/MaxPower
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# Create ADB function
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sudo mkdir -p functions/ffs.adb
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sudo mkdir -p /dev/usb-ffs/adb
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if ! mountpoint -q /dev/usb-ffs/adb; then
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sudo mount -t functionfs adb /dev/usb-ffs/adb
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else
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echo "/dev/usb-ffs/adb is already mounted"
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fi
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# Link both functions to configuration
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echo "NCM+ADB" | sudo tee configs/c.1/strings/0x409/configuration
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sudo rm -f configs/c.1/ncm.0
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sudo rm -f configs/c.1/ffs.adb
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sudo ln -s functions/ncm.0 configs/c.1/
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sudo ln -s functions/ffs.adb configs/c.1/
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}
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start() {
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setprop service.adb.tcp.port -1
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cd /config/usb_gadget/g1
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echo "a600000.dwc3" | sudo tee UDC
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}
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stop() {
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if [ -d "/config/usb_gadget/g1" ]; then
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cd /config/usb_gadget/g1
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echo "" | sudo tee UDC
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fi
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}
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ADB_PARAM="/data/params/d/AdbEnabled"
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if ! mountpoint -q /data || ([ -f "$ADB_PARAM" ] && [ "$(< $ADB_PARAM)" == "1" ]); then
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echo "Enabling ADB"
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setup
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systemctl start adbd
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sleep 1 # adbd does some setup before we can enable the gadget
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start
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else
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echo "Disabling ADB"
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systemctl stop adbd
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stop
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fi
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