I am getting 'I2C read failed' and 'ep 0 read error' errors with a Hauppauge Nova T 500 PCI card. I managed to get a scan done and locate channels (after many tries) and get a signal lock, but eventually (usually within 30secs of trying to use the card) the card fouls up with I2C errors and the like, and then there is no more response with tools like tzap, until a cold restart. I originally started with kernel 2.6.24.5; upgraded to kernel 2.6.25.4 and problem remained; upgraded the v4l install from mercurial source (at commit afa24b594522$) and problem remains. Using firmware: dvb-usb-dib0700-1.10.fw This is running on a Compaq Alpha XP1000 workstation. It has a 667Mhz Alpha EV67 cpu. Running Debian Lenny. Modprobe options: options dvb-usb disable_rc_polling=1 debug=1 options dvb-usb-dib0700 force_lna_activation=1 debug=1 Typical dmesg log (after removing lines of no relevance) on system powerup is: usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 4 ports detected usb usb2: New USB device found, idVendor=1d6b, idProduct=0002 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: EHCI Host Controller usb usb2: Manufacturer: Linux 2.6.25.4 ehci_hcd usb usb2: SerialNumber: 0001:02:0a.2 usb 1-1: new full speed USB device using ohci_hcd and address 2 usb 1-1: configuration #1 chosen from 1 choice usb 1-1: New USB device found, idVendor=0403, idProduct=6001 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: USB to Serial Cable usb 1-1: Manufacturer: FTDI usb 1-1: SerialNumber: FTCX9KJL usb 1-2: new full speed USB device using ohci_hcd and address 3 usb 1-2: not running at top speed; connect to a high speed hub usb 1-2: configuration #1 chosen from 1 choice hub 1-2:1.0: USB hub found hub 1-2:1.0: 4 ports detected usb 1-2: New USB device found, idVendor=05e3, idProduct=0606 usb 1-2: New USB device strings: Mfr=0, Product=1, SerialNumber=0 usb 1-2: Product: USB2.0 Hub usb 2-1: new high speed USB device using ehci_hcd and address 2 usb 2-1: configuration #1 chosen from 1 choice usb 2-1: New USB device found, idVendor=2040, idProduct=9950 usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-1: Product: WinTV Nova-DT usb 2-1: Manufacturer: Hauppauge usb 2-1: SerialNumber: 4030272356 usb 1-2.2: new low speed USB device using ohci_hcd and address 4 usb 1-2.2: configuration #1 chosen from 1 choice usb 1-2.2: New USB device found, idVendor=04d9, idProduct=0499 usb 1-2.2: New USB device strings: Mfr=0, Product=0, SerialNumber=0 dib0700: loaded with support for 7 different device-types check for cold 10b8 1e14 check for cold 10b8 1e78 check for cold 2040 7050 check for cold 2040 7060 check for cold 7ca a807 check for cold 7ca b808 check for cold 185b 1e78 check for cold 185b 1e80 check for cold 1584 6003 check for cold 413 6f00 check for cold 413 6f01 check for cold 7ca b568 check for cold 1044 7001 check for cold 2040 9941 check for cold 2040 9950 FW GET_VERSION length: -32 cold: 1 cold: 1 dvb-usb: found a 'Hauppauge Nova-T 500 Dual DVB-T' in cold state, will try to load a firmware dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.10.fw' dib0700: firmware started successfully. dvb-usb: found a 'Hauppauge Nova-T 500 Dual DVB-T' in warm state. power control: 1 i2c-adapter i2c-1: SMBus Quick command not supported, can't probe for chips dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. DVB: registering new adapter (Hauppauge Nova-T 500 Dual DVB-T) ep 0 read error (status = -32) I2C read failed on address b ep 0 read error (status = -32) I2C read failed on address a i2c-adapter i2c-2: SMBus Quick command not supported, can't probe for chips DVB: registering frontend 0 (DiBcom 3000MC/P)... MT2060: successfully identified (IF1 = 1217) dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. DVB: registering new adapter (Hauppauge Nova-T 500 Dual DVB-T) i2c-adapter i2c-3: SMBus Quick command not supported, can't probe for chips DVB: registering frontend 1 (DiBcom 3000MC/P)... MT2060: successfully identified (IF1 = 1226) power control: 0 dvb-usb: Hauppauge Nova-T 500 Dual DVB-T successfully initialized and connected. usbcore: registered new interface driver dvb_usb_dib0700 I have created channel config with the following (for New Zealand transmission from Te Aroha): TV ONE:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:230:310:1200 TV2:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:261:311:1201 TVNZ 6:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:262:312:1202 TVNZ 7:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:263:313:1203 TVNZ SPORT EXTRA:674000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:264:314:1204 TV3:690000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:450:400:1300 C4:690000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:451:401:1301 Maori Television:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:550:600:1400 Parliament TV :706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:551:601:1401 Reserved 3KSD:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:552:602:1402 Reserved 4KSD:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:553:603:1403 Reserved 5KSD:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:554:604:1404 Reserved 6KSD:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:555:605:1405 Freeview | HD:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:556:606:1406 Radio NZ National:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:620:2000 Radio NZ Concert:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:0:621:2001 tvCentral:706000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_AUTO:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_16:HIERARCHY_NONE:560:610:1408 Since the scan program left all parameters as AUTO variants which my version of tzap couldn't cope with, I had to hand code some of the parameters (the QAM, transmission mode and guard interval, which fortunately the transmission company published on their website). This much works as a tzap to 'tvnz 6' produced the following: using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 674000000 Hz video pid 0x0106, audio pid 0x0138 status 00 | signal 5e62 | snr 0000 | ber 001fffff | unc 00000000 | status 1f | signal 9051 | snr 0000 | ber 0000f990 | unc 00000000 | FE_HAS_LOCK status 1f | signal 9046 | snr 0000 | ber 00000000 | unc 000000d7 | FE_HAS_LOCK status 1f | signal 9059 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 9049 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 9062 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 9048 | snr 0000 | ber 00000000 | unc 00000000 | FE_HAS_LOCK at which point on this trial tzap froze, and the following message appeared in the kernel log: power control: 1 modifying (1) streaming state for 0 data for streaming: 10 11 ep 0 read error (status = -60) I2C read failed on address a and similar errors repeat a number of times, terminating with (probably when I ctrl-Ced tzap): mt2060 I2C write failed Any suggestions as to what is wrong or to how I should continue to debug this one? Cheerz Michael. _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
