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raspi-freezer
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Hendrik Langer 6 years ago
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dc99a73a60
2 changed files with 10 additions and 3 deletions
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  1. 2
      README.md
  2. 11
      raspberry-environment/display.py

2
README.md
View File

@ -56,7 +56,7 @@ add/change "console=tty3 quiet" to /boot/cmdline.txt
copy everything to /opt/freezer/ copy everything to /opt/freezer/
chmod a+x /opt/freezer/display.py chmod a+x /opt/freezer/display.py
add to /etc/rc.local: python3 /opt/freezer/display.py add to /etc/rc.local: nohup python3 /opt/freezer/display.py &
### read-only root ### read-only root
wget https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/read-only-fs.sh wget https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/read-only-fs.sh

11
raspberry-environment/display.py
View File

@ -132,6 +132,8 @@ if __name__ == '__main__':
GPIO.output(18, GPIO.LOW) GPIO.output(18, GPIO.LOW)
GPIO.output(23, GPIO.LOW) GPIO.output(23, GPIO.LOW)
g="/sys/kernel/config/usb_gadget/freezer/"
try: try:
subprocess.run(['dd', 'if=/dev/zero', 'of=/tmp/usbdisk.img', 'bs=1M', 'count=96'], shell=False, check=True) subprocess.run(['dd', 'if=/dev/zero', 'of=/tmp/usbdisk.img', 'bs=1M', 'count=96'], shell=False, check=True)
#sfdisk #sfdisk
@ -146,7 +148,7 @@ if __name__ == '__main__':
# http://irq5.io/2016/12/22/raspberry-pi-zero-as-multiple-usb-gadgets/ # http://irq5.io/2016/12/22/raspberry-pi-zero-as-multiple-usb-gadgets/
# http://isticktoit.net/?p=1383 # http://isticktoit.net/?p=1383
subprocess.run(['modprobe', 'libcomposite'], shell=False, check=True) subprocess.run(['modprobe', 'libcomposite'], shell=False, check=True)
g="/sys/kernel/config/usb_gadget/freezer/"
subprocess.run(['mkdir', g], shell=False, check=True) subprocess.run(['mkdir', g], shell=False, check=True)
os_echo(g+"idVendor", "0x1d6b") # Linux Foundation os_echo(g+"idVendor", "0x1d6b") # Linux Foundation
@ -158,7 +160,7 @@ if __name__ == '__main__':
os_echo(g+"bDeviceSubClass", "0x02") # correct bus driver os_echo(g+"bDeviceSubClass", "0x02") # correct bus driver
os_echo(g+"bDeviceProtocol", "0x01") # for multi function os_echo(g+"bDeviceProtocol", "0x01") # for multi function
subprocess.run(['mkdir', g+"strings/0x409"], shell=False, check=True) subprocess.run(['mkdir', g+"strings/0x409"], shell=False, check=True) # english
os_echo(g+"strings/0x409/serialnumber", "34812ee8aa112377") # random os_echo(g+"strings/0x409/serialnumber", "34812ee8aa112377") # random
os_echo(g+"strings/0x409/manufacturer", "IUL TU Dortmund") os_echo(g+"strings/0x409/manufacturer", "IUL TU Dortmund")
os_echo(g+"strings/0x409/product", "Raspberry Screenshot Gadget") os_echo(g+"strings/0x409/product", "Raspberry Screenshot Gadget")
@ -173,6 +175,7 @@ if __name__ == '__main__':
os_echo(g+"functions/mass_storage.usb0/lun.0/file", "/tmp/usbdisk.img") os_echo(g+"functions/mass_storage.usb0/lun.0/file", "/tmp/usbdisk.img")
subprocess.run(['mkdir', g+"configs/c.1"], shell=False, check=True) subprocess.run(['mkdir', g+"configs/c.1"], shell=False, check=True)
#os_echo(g+"configs/c.1/bmAttributes", "0x80") # bus powered
os_echo(g+"configs/c.1/MaxPower", "250") os_echo(g+"configs/c.1/MaxPower", "250")
subprocess.run(['ln', '-s', g+"functions/mass_storage.usb0", g+"configs/c.1"], shell=False, check=True) subprocess.run(['ln', '-s', g+"functions/mass_storage.usb0", g+"configs/c.1"], shell=False, check=True)
@ -184,10 +187,14 @@ if __name__ == '__main__':
os_echo(g+"functions/hid.usb0/report_desc", "\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") os_echo(g+"functions/hid.usb0/report_desc", "\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")
subprocess.run(['mkdir', g+"configs/c.2"], shell=False, check=True) subprocess.run(['mkdir', g+"configs/c.2"], shell=False, check=True)
#subprocess.run(['mkdir', g+"configs/c.2/strings/0x409"], shell=False, check=True) # english
os_echo(g+"configs/c.2/bmAttributes", "0x80") # bus powered
os_echo(g+"configs/c.2/MaxPower", "250") os_echo(g+"configs/c.2/MaxPower", "250")
#os_echo(g+"configs/c.2/strings/0x409/configuration", "Keyboard configuration") # bus powered
subprocess.run(['ln', '-s', g+"functions/hid.usb0", g+"configs/c.2"], shell=False, check=True) subprocess.run(['ln', '-s', g+"functions/hid.usb0", g+"configs/c.2"], shell=False, check=True)
#subprocess.run(['ln', '-s', g+"configs/c.1", g+"os_desc"], shell=False, check=True) #subprocess.run(['ln', '-s', g+"configs/c.1", g+"os_desc"], shell=False, check=True)
#subprocess.run(['ln', '-s', g+"configs/c.2", g+"os_desc"], shell=False, check=True)
subprocess.run(['ls /sys/class/udc/ > '+g+'UDC'], shell=True, check=True) subprocess.run(['ls /sys/class/udc/ > '+g+'UDC'], shell=True, check=True)
# RNDIS OS descriptors # RNDIS OS descriptors

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