working alpha version

raspberry-pi/root/scripts/expose_usb.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+modprobe libcomposite
+cd /sys/kernel/config/usb_gadget/
+mkdir -p g1 && cd g1
+
+# Standard USB descriptors
+echo 0x1d6b > idVendor
+echo 0x0104 > idProduct
+echo 0x0100 > bcdDevice
+echo 0x0200 > bcdUSB
+
+mkdir -p strings/0x409
+echo "TALIA003512M" > strings/0x409/serialnumber
+echo "Debian" > strings/0x409/manufacturer
+echo "EmulatedDrive" > strings/0x409/product
+
+mkdir -p configs/c.1/strings/0x409
+echo "Storage and Serial" > configs/c.1/strings/0x409/configuration
+echo 500 > configs/c.1/MaxPower
+
+mkdir -p functions/mass_storage.usb0
+echo 1 > functions/mass_storage.usb0/stall
+echo 1 > functions/mass_storage.usb0/lun.0/removable
+# CRITICAL: Forces target PC to treat it as Read-Only
+echo 1 > functions/mass_storage.usb0/lun.0/ro 
+
+echo /usb_share.img > functions/mass_storage.usb0/lun.0/file
+ln -sf functions/mass_storage.usb0 configs/c.1/
+
+# Serial connection
+mkdir -p functions/acm.usb0
+ln -sf functions/acm.usb0 configs/c.1/
+
+# Bind to the physical controller to make it appear on the reading PC
+echo $(ls /sys/class/udc/) > UDC