This repository contains utilities to use the [HM-CFG-USB(2)][] (HomeMatic USB
-Konfigurations-Adapter) from [ELV][] on Linux/Unix by using [libusb 1.0][].
+Konfigurations-Adapter, seems to be discontinued) from [ELV][] on Linux/Unix
+by using [libusb 1.0][].
The HM-CFG-USB can be used to send and receive [BidCoS-Packets][] to control
[HomeMatic][] home automation devices (like remote controllable sockets,
HomeMatic windows configuration software, also supporting devices using
AES-signing like [KeyMatic][].
-[HM-CFG-USB(2)]: http://www.elv.de/homematic-usb-konfigurations-adapter-1.html
+[HM-CFG-USB(2)]: http://www.eq-3.de/produkte/homematic/zentralen-und-gateways/homematic-funk-konfigurationsadapter-usb.html
[ELV]: http://www.elv.de/
[libusb 1.0]: http://www.libusb.org/
[BidCoS-Packets]: http://homegear.eu/index.php/BidCoS%C2%AE_Packets
`./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456 -c /dev/ttyACM0`
**Automatic firmware-updates:**
-The options `-C`, `-D` and `-K` can be used to send a device to the
-bootloader automatically without manually rebooting the device while
-pressing buttons.
+The options `-C` (HMID of central), `-D` (HMID of device) and `-K` (AES key w/
+index) can be used to send a device to the bootloader automatically without
+manually rebooting the device while pressing buttons:
+
+`./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -C ABCDEF -D 012345 -K 01:00112233445566778899AABBCCDDEEFF`
+
+`-K` is only needed, when AES signing is active on the device.
**Acknowledgments:**
flash-ota uses the public domain [AES implementation by Brad Conte][] to answer