Hi Mauro... I applied your patch... the patch seems good using scan, but still some issue with w_scan: >>> tune to: 177500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE 0x0000 0x0d49: pmt_pid 0x0102 RAI -- Rai 1 (running) 0x0000 0x0d4a: pmt_pid 0x0101 RAI -- Rai 2 (running) 0x0000 0x0d4b: pmt_pid 0x0100 RAI -- Rai 3 TGR Veneto (running) 0x0000 0x0d53: pmt_pid 0x0118 RAI -- Rai News (running) 0x0000 0x0d54: pmt_pid 0x0119 Rai -- Rai 3 TGR Emilia Romagna (running) 0x0000 0x0d4c: pmt_pid 0x0103 Rai -- Rai Radio1 (running) 0x0000 0x0d4d: pmt_pid 0x0104 Rai -- Rai Radio2 (running) 0x0000 0x0d4e: pmt_pid 0x0105 Rai -- Rai Radio3 (running) Network Name 'Rai' >>> tune to: 212500000:INVERSION_AUTO:BANDWIDTH_7_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE 0x0000 0x0001: pmt_pid 0x0023 TV7 -- TV7 MOVIE (running) 0x0000 0x0002: pmt_pid 0x002f TV7 -- TV7 DOC (running) 0x0000 0x0003: pmt_pid 0x002d TV7 -- TV7 SANITA (running) 0x0000 0x0004: pmt_pid 0x0026 TV7 -- TV7 ITALIA (running) 0x0000 0x0005: pmt_pid 0x0032 TV7 -- TV7 ATENEO (running) 0x0000 0x0006: pmt_pid 0x0022 TV7 -- TV7 SPORT (running) 0x0000 0x000b: pmt_pid 0x002b TV7 -- TV7 AZZURRA (running) Network Name 'Triveneta TV' using w_scan still persist issues. Here is the results: root@depieri1lnx:~# w_scan -f t -c IT w_scan version 20110616 (compiled for DVB API 5.3) using settings for ITALY DVB aerial DVB-T Europe frontend_type DVB-T, channellist 4 output format vdr-1.6 output charset 'UTF-8', use -C <charset> to override Info: using DVB adapter auto detection. /dev/dvb/adapter0/frontend0 -> DVB-C "DRXK DVB-C": specified was DVB-T -> SEARCH NEXT ONE. /dev/dvb/adapter0/frontend1 -> DVB-T "DRXK DVB-T": good :-) Using DVB-T frontend (adapter /dev/dvb/adapter0/frontend1) -_-_-_-_ Getting frontend capabilities-_-_-_-_ Using DVB API 5.4 frontend 'DRXK DVB-T' supports INVERSION_AUTO QAM_AUTO TRANSMISSION_MODE_AUTO GUARD_INTERVAL_AUTO HIERARCHY_AUTO FEC_AUTO FREQ (47.12MHz ... 865.00MHz) -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ Scanning 7MHz frequencies... 177500: (time: 00:00) 184500: (time: 00:03) 191500: (time: 00:06) 198500: (time: 00:09) 205500: (time: 00:12) 212500: (time: 00:15) 219500: (time: 00:17) 226500: (time: 00:20) Scanning 8MHz frequencies... 474000: (time: 00:23) [...] 850000: (time: 02:38) 858000: (time: 02:40) ERROR: Sorry - i couldn't get any working frequency/transponder Nothing to scan!! dmesg says: [ 794.964818] drxk: Error -22 on QAMSetSymbolrate [ 794.964827] drxk: Error -22 on SetQAM [ 794.964832] drxk: Error -22 on Start [ 795.164518] drxk: Error -22 on QAMSetSymbolrate [ 795.164528] drxk: Error -22 on SetQAM [ 795.164534] drxk: Error -22 on Start -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html