Gadget: Added helper to enable/disable gadget, HID keyboard

gadget_disable.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+gname=rpikvm
+
+cd /sys/kernel/config/usb_gadget/$gname
+
+echo "Disable gadget"
+echo "" > UDC
+
+echo "Clean up configs"
+rm configs/c.1/hid.usb0
+rmdir configs/c.1/strings/0x409
+rmdir configs/c.1
+
+echo "Clean up functions"
+rmdir functions/hid.usb0
+
+echo "Clean up strings"
+rmdir strings/0x409
+
+echo "Removing gadget"
+cd ..
+rmdir $gname
+
+
+echo "All done"

gadget_enable.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+gname=rpikvm
+gserial=$(awk '/Serial/ { print $3 }' /proc/cpuinfo)
+gmanufacturer="Petrkr.NET"
+gproduct="rPi KVM"
+
+cd /sys/kernel/config/usb_gadget/
+mkdir -p $gname
+cd $gname
+
+echo "Creating USB Device"
+echo 0x1d6b > idVendor # Linux Foundation
+echo 0x0104 > idProduct # Multifunction Composite Gadget
+echo 0x0100 > bcdDevice # v1.0.0
+echo 0x0200 > bcdUSB # USB2
+
+echo "Creating strings"
+mkdir -p strings/0x409
+echo "$gserial" > strings/0x409/serialnumber
+echo "$gmanufacturer" > strings/0x409/manufacturer
+echo "$gproduct" > strings/0x409/product
+mkdir -p configs/c.1/strings/0x409
+
+echo "Config 1: ECM network" > configs/c.1/strings/0x409/configuration
+echo 250 > configs/c.1/MaxPower
+
+echo "Creating usb devices"
+# Gadget HID Keyboard
+echo "  HID Keyboard"
+mkdir -p functions/hid.usb0
+echo 1 > functions/hid.usb0/protocol
+echo 1 > functions/hid.usb0/subclass
+echo 8 > functions/hid.usb0/report_length
+echo -ne \\x05\\x01\\x09\\x06\\xa1\\x01\\x05\\x07\\x19\\xe0\\x29\\xe7\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08\\x81\\x02\\x95\\x01\\x75\\x08\\x81\\x03\\x95\\x05\\x75\\x01\\x05\\x08\\x19\\x01\\x29\\x05\\x91\\x02\\x95\\x01\\x75\\x03\\x91\\x03\\x95\\x06\\x75\\x08\\x15\\x00\\x25\\x65\\x05\\x07\\x19\\x00\\x29\\x65\\x81\\x00\\xc0 > functions/hid.usb0/report_desc
+ln -s functions/hid.usb0 configs/c.1/
+
+echo "Activate gadget"
+ls /sys/class/udc > UDC