Mégegyszer köszönöm a segítséget mindenkinek:
[11823.834893] dvb-usb: found a 'Mygica T230C DVB-T/T2/C' in warm state.
[11824.077380] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[11824.077572] dvbdev: DVB: registering new adapter (Mygica T230C DVB-T/T2/C)
[11824.079716] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[11824.110048] dvbdev: dvb_create_media_entity: media entity 'Silicon Labs Si2168' registered.
[11824.117215] dvb-usb: schedule remote query interval to 100 msecs.
[11824.117896] dvb-usb: Mygica T230C DVB-T/T2/C successfully initialized and connected.
[11824.118057] usbcore: registered new interface driver dvb_usb_cxusb