Dear folks, 
I try to install the mentioned USB-Stick on my RPi B+ (openelec 5.0, Kernel 3.17.7) through DVB-C with Kodi /ex-XMBC.
First I copied the firmware files (http://www.linuxtv.org/wiki/index.php/TechnoTrend_TT-TVStick_CT2-4400)
dvb-demod-si2168-b40-01.fw 
dvb-tuner-si2158-a20-01.fw 
to /storage/.config/firmware as /lib/firmware was write protected - after restart it seems that it works also
OpenELEC:~ # dmesg | grep dvb
[   10.111045] dvb-usb: found a 'TechnoTrend TVStick CT2-4400' in warm state.
[   10.111557] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[   10.120979] dvb-usb: MAC address: bc:ea:2b:44:02:61
[   11.038566] dvb-usb: schedule remote query interval to 150 msecs.
[   11.038589] dvb-usb: TechnoTrend TVStick CT2-4400 successfully initialized and connected.
[   11.038762] usbcore: registered new interface driver dvb_usb_cxusb
[   21.275842] si2168 2-0064: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
[   21.935789] si2157 3-0060: downloading firmware from file 'dvb-tuner-si2158-a20-01.fw'
OpenELEC:~ # ls /dev/dvb
adapter0
Now I activated the tvheadend backend server on Kodi and opend it with chrome (IP_of_RPi:9981)
As you see (TVHeadend.jpg) I can choose the TV adapters but it seems that I can´t add a network to find TV channels!?
The log shows the follow:
OpenELEC:~ # tvheadend -C -d
2015-01-22 14:23:35.812 [   INFO] main: Log started
2015-01-22 14:23:35.814 [  ERROR] tcp: bind:
: Address already in use
2015-01-22 14:23:35.815 [  ERROR] tcp: bind: : Address already in use
2015-01-22 14:23:39.534 [  DEBUG] fsmonitor: watch /dev
2015-01-22 14:23:39.537 [  DEBUG] fsmonitor: watch /dev/dvb
2015-01-22 14:23:41.548 [  ERROR] linuxdvb: unable to open /dev/dvb/adapter0/fro                                   ntend0
2015-01-22 14:23:41.972 [   INFO] dvr: Creating new configuration ''
2015-01-22 14:23:41.975 [WARNING] dvr: Output directory for video recording is not yet configured for DVR configuration "". Defaulting to to "/storage". This can be changed from the web user interface.
2015-01-22 14:23:41.983 [   INFO] CSA: Using 32bit parallel descrambling
2015-01-22 14:23:41.989 [   INFO] epggrab: module eit created
2015-01-22 14:23:41.992 [   INFO] epggrab: module uk_freesat created
2015-01-22 14:23:41.994 [   INFO] epggrab: module uk_freeview created
2015-01-22 14:23:41.998 [   INFO] epggrab: module viasat_baltic created
2015-01-22 14:23:42.068 [  DEBUG] opentv: dictionary skyit loaded
2015-01-22 14:23:42.072 [  DEBUG] opentv: dictionary skyeng loaded
2015-01-22 14:23:42.083 [  DEBUG] opentv: dictonaries loaded
2015-01-22 14:23:42.095 [  DEBUG] opentv: genre map ausat loaded
2015-01-22 14:23:42.098 [  DEBUG] opentv: genre map skyuk loaded
2015-01-22 14:23:42.100 [  DEBUG] opentv: genre map skyit loaded
2015-01-22 14:23:42.102 [  DEBUG] opentv: genre maps loaded
2015-01-22 14:23:42.107 [   INFO] epggrab: module opentv-ausat created
2015-01-22 14:23:42.114 [  DEBUG] opentv: provider ausat loaded
2015-01-22 14:23:42.117 [   INFO] epggrab: module opentv-skyuk created
2015-01-22 14:23:42.121 [  DEBUG] opentv: provider skyuk loaded
2015-01-22 14:23:42.125 [   INFO] epggrab: module opentv-skyit created
2015-01-22 14:23:42.140 [  DEBUG] opentv: provider skyit loaded
2015-01-22 14:23:42.143 [  DEBUG] opentv: providers loaded
2015-01-22 14:23:42.149 [   INFO] epggrab: module pyepg created
2015-01-22 14:23:42.154 [   INFO] epggrab: module xmltv created
2015-01-22 14:23:42.161 [  DEBUG] epggrab: using internal grab search
2015-01-22 14:23:42.178 [   INFO] spawn: Executing "/storage/.kodi/addons/service.multimedia.tvheadend/bin/tv_grab_file"
2015-01-22 14:23:42.518 [   INFO] epgdb: loaded v2
2015-01-22 14:23:42.523 [   INFO] epgdb:   config     1
2015-01-22 14:23:42.523 [   INFO] epgdb:   channels   0
2015-01-22 14:23:42.523 [   INFO] epgdb:   brands     0
2015-01-22 14:23:42.523 [   INFO] epgdb:   seasons    0
2015-01-22 14:23:42.523 [   INFO] epgdb:   episodes   0
2015-01-22 14:23:42.523 [   INFO] epgdb:   broadcasts 0
2015-01-22 14:23:42.527 [ NOTICE] START: HTS Tvheadend version 3.9.2182~gbd20a53 started, running as PID:797 UID:0 GID:0, CWD:/storage CNF:/storage/.hts/tvheadend
2015-01-22 14:26:31.877 [  DEBUG] fsmonitor: unwatch /dev/dvb
2015-01-22 14:26:31.880 [  DEBUG] fsmonitor: unwatch /dev
2015-01-22 14:26:31.919 [   INFO] epgdb: saved
2015-01-22 14:26:31.925 [   INFO] epgdb:   brands     0
2015-01-22 14:26:31.926 [   INFO] epgdb:   seasons    0
2015-01-22 14:26:31.928 [   INFO] epgdb:   episodes   0
2015-01-22 14:26:31.929 [   INFO] epgdb:   broadcasts 0
2015-01-22 14:26:32.384 [ NOTICE] STOP: Exiting HTS Tvheadend
Guess the problem is this: 2015-01-22 14:23:41.548 [  ERROR] linuxdvb: unable to open /dev/dvb/adapter0/frontend0
Well, I really don´t know what I can do now. Any suggestions what I can do now?
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