Need some advice and pointers. I have gotten both adapters/frontends of the VerMedia AVerTVHD Duet PCTV tuner (A188) A188-AF card to register. [ 6251.073357] DVB: registering new adapter (SAA716x dvb adapter) [ 6251.217817] tda18271 1-0060: creating new instance [ 6251.219671] TDA18271HD/C2 detected @ 1-0060 [ 6251.484794] SAA716x Budget 0000:04:00.0: DVB: registering adapter 0 frontend 0 (LG Electronics LGDT3304 VSB/QAM Frontend)... [ 6251.485084] DVB: registering new adapter (SAA716x dvb adapter) [ 6251.601649] tda18271 0-0060: creating new instance [ 6251.603615] TDA18271HD/C2 detected @ 0-0060 [ 6251.868787] SAA716x Budget 0000:04:00.0: DVB: registering adapter 1 frontend 0 (LG Electronics LGDT3304 VSB/QAM Frontend)... The card only has one RF input hence I believe the two TDA18271 tuners are setup in master/slave configuration. When I try to set them up as master slave the slave fails to detect as seen in below log. If I configure both as master both are detected [ 5410.137358] DVB: registering new adapter (SAA716x dvb adapter) [ 5410.281839] tda18271 1-0060: creating new instance [ 5410.283694] TDA18271HD/C2 detected @ 1-0060 [ 5410.548784] SAA716x Budget 0000:04:00.0: DVB: registering adapter 0 frontend 0 (LG Electronics LGDT3304 VSB/QAM Frontend)... [ 5410.549081] DVB: registering new adapter (SAA716x dvb adapter) [ 5410.665649] tda18271 0-0060: creating new instance [ 5410.669264] Unknown device (0) detected @ 0-0060, device not supported. [ 5410.669269] tda18271_attach: [0-0060|S] error -22 on line 1285 [ 5410.669272] tda18271 0-0060: destroying instance [ 5410.704784] SAA716x Budget 0000:04:00.0: DVB: registering adapter 1 frontend 0 (LG Electronics LGDT3304 VSB/QAM Frontend)... When I try to tune I get the following on all stations. using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' >>> tune to: 57028615:8VSB WARNING: >>> tuning failed!!! >>> tune to: 57028615:8VSB (tuning failed) Sometimes I also get WARNING: filter timeout pid This happens mostly on frequencies I know have stations in my dfw area. Any pointers would be much appreciated, especially how to find out which tda18271 is master and how to setup the configuration struct's for ATSC , master, slave . Thanks /// Carl /*when both tda18271 are configured with below struct they are both found */ /*if I remove .gate and .role comments it fails to detect the tda18271 on the first i2c bus */ static struct tda18271_config averduet_tda_config_master = { .std_map = &averduet_std_map, //.gate = TDA18271_GATE_DIGITAL, //.role = TDA18271_MASTER, }; static struct tda18271_config averduet_tda_config_slave = { .std_map = &averduet_std_map, .gate = TDA18271_GATE_DIGITAL, .role = TDA18271_SLAVE, .output_opt = TDA18271_OUTPUT_LT_OFF, .rf_cal_on_startup = 1, }; static struct lgdt3305_config averduet_lgdt3304_dev = { .i2c_addr = 0x0e, /*0x0e, 0x59 these are the only two possible values*/ .demod_chip = LGDT3304, .spectral_inversion = 1, .deny_i2c_rptr = 0, /*1,*/ .mpeg_mode = LGDT3305_MPEG_PARALLEL, .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE, .tpvalid_polarity = LGDT3305_TP_VALID_HIGH, .vsb_if_khz = 3250, .qam_if_khz = 4000, }; tridentsx@tridentsx-P5K-E:~/media_build/media$ lsmod Module Size Used by tda18271 40860 2 lgdt3305 22788 2 saa716x_budget 18162 0 mb86a16 27023 1 saa716x_budget saa716x_core 68492 1 saa716x_budget stv090x 57159 1 saa716x_budget dvb_core 90348 3 saa716x_core,saa716x_budget,lgdt3305 vesafb 13500 1 snd_hda_codec_analog 75266 1 parport_pc 27504 0 ppdev 12817 0 bnep 17669 2 rfcomm 37420 0 bluetooth 202069 10 bnep,rfcomm snd_hda_intel 38307 2 coretemp 13131 0 binfmt_misc 17260 1 kvm_intel 126842 0 snd_hda_codec 117580 2 snd_hda_intel,snd_hda_codec_analog snd_hwdep 13272 1 snd_hda_codec kvm 376505 1 kvm_intel snd_pcm 80890 2 snd_hda_codec,snd_hda_intel snd_page_alloc 14230 2 snd_pcm,snd_hda_intel gpio_ich 13236 0 snd_seq_midi 13132 0 snd_seq_midi_event 14475 1 snd_seq_midi snd_rawmidi 25114 1 snd_seq_midi snd_seq 51280 2 snd_seq_midi_event,snd_seq_midi nvidia 7108000 24 snd_seq_device 14137 3 snd_seq,snd_rawmidi,snd_seq_midi snd_timer 24411 2 snd_pcm,snd_seq microcode 18286 0 lpc_ich 16925 0 serio_raw 13031 0 snd 56485 13 snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel, snd_seq_device,snd_hda_codec_analog asus_atk0110 17390 0 mac_hid 13037 0 soundcore 12600 1 snd lp 13299 0 parport 40753 3 lp,ppdev,parport_pc pata_acpi 12886 0 firewire_ohci 35292 0 firewire_core 61718 1 firewire_ohci crc_itu_t 12627 1 firewire_core usb_storage 47684 0 pata_jmicron 12662 0 floppy 55441 0 sky2 52846 0 ahci 25507 0 libahci 26108 1 ahci -----Original Message----- From: linux-media-owner@xxxxxxxxxxxxxxx [mailto:linux-media-owner@xxxxxxxxxxxxxxx] On Behalf Of Steven Toth Sent: Friday, June 28, 2013 10:23 AM To: Carl-Fredrik Sundstrom Cc: Devin Heitmueller; linux-media@xxxxxxxxxxxxxxx Subject: Re: lgdt3304 On Thu, Jun 27, 2013 at 11:00 PM, Carl-Fredrik Sundstrom <cf@xxxxxxxxxxxxxxxxxxxx> wrote: > > I am able to detect two lgdt3304 one on each i2c bus now. As you > suspected I had to set GPIO pin 17 for them to come alive. > > Now to my next question, how do I attach two front ends I have two > lgdt3304 and two TDA18271HD/C2 Is there a good driver I can look at > where they do that ? The SAA7164 driver (amongst others) demonstrates how to expose multiple tuners on a single card via multiple adapters, /dev/dvb/adapterX. The cx88 driver demonstrates how to expose multiple tuners/demods via a single transport bus, via a single dvb adapter. /dev/dvb/adapter0/frontendX - Steve -- Steven Toth - Kernel Labs http://www.kernellabs.com -- 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 -- 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