Technotrend TT-connect CT-3650 CI USB TV
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Review of Linux Compatibility
The DVB-T and DVB-C double tuner TT-connect CT-3650 CI from Technotrend is connected to the PC via USB.
Both tuners as well as the CI-Interface are supported by the Linux kernel since version 3.2 (e.g. Ubuntu 12.04).
The CT-3640 is initiated by the kernel in the following way:
usb 2-1.1: new high-speed USB device number 5 using ehci_hcd IR NEC protocol handler initialized IR RC5(x) protocol handler initialized IR RC6 protocol handler initialized dvb-usb: found a 'Technotrend TT-connect CT-3650' in warm state. dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. DVB: registering new adapter (Technotrend TT-connect CT-3650) IR JVC protocol handler initialized IR Sony protocol handler initialized IR MCE Keyboard/mouse protocol handler initialized lirc_dev: IR Remote Control driver registered, major 248 IR LIRC bridge handler initialized ttusb2: CI initialized. DVB: registering adapter 0 frontend 0 (Philips TDA10023 DVB-C)... DVB: registering adapter 0 frontend 1 (NXP TDA10048HN DVB-T)... Registered IR keymap rc-tt-1500 input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/rc/rc0/input15 rc0: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/rc/rc0 dvb-usb: schedule remote query interval to 150 msecs. dvb-usb: Technotrend TT-connect CT-3650 successfully initialized and connected. usbcore: registered new interface driver dvb_usb_ttusb2 dvb_ca adapter 0: Invalid PC card inserted
The error message “Invalid PC card inserted” can be ignored.
Some applications, e.g., MythTV, have problems with the USB tuners because some devices like the mixer exist only once although the there are two tuners (DVB-T and DVB-C). This can be solved by symbolically linking the missing devices:
ln -s /dev/dvb/adapter0/ca0 /dev/dvb/adapter0/ca1 ln -s /dev/dvb/adapter0/demux0 /dev/dvb/adapter0/demux1 ln -s /dev/dvb/adapter0/dvr0 /dev/dvb/adapter0/dvr1 ln -s /dev/dvb/adapter0/net0 /dev/dvb/adapter0/net1