[linux-dvb] Write_dst error during scan on Twinhan DVB-T mini ter

Elliot Mackenzie macka at adixein.com
Tue Jun 28 14:25:15 CEST 2005


Arrgh.  Sorry.  It appears this was the result of providing the 
incorrect frequency to the tuner.  Crystal Palace is apparently just out 
of range of here, and there is a better one to use which seems to detect 
the channels OK now.

Cheers,
Elliot.

Elliot Mackenzie wrote:

> If I run a scan as follows:
> ./scan dvb-t/uk-CrystalPalace
>
> I get a list of _write_dst errors in dmesg and get "tuning failed" 
> during the scan.
>
> The results of the scan are as follows:
> ======
> scanning dvb-t/uk-CrystalPalace
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> initial transponder 505833333 0 3 0 1 0 0 0
> >>> tune to: 
> 505833333:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE 
>
> WARNING: >>> tuning failed!!!
> >>> tune to: 
> 505833333:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE 
> (tuning failed)
> WARNING: >>> tuning failed!!!
> ERROR: initial tuning failed
> dumping lists (0 services)
> Done.
> ======
>
> The errors in dmesg (occurring during a scan) look like:
> ======
> write_dst: _write_dst error (err == -5, len == 0x08, b0 == 0x07)
> ...<repeated lots of times>...
> ======
>
> Any ideas what this means?
>
> Card details:
> ======
> Twinhan DVB-T Mini Ter
>
> bttv: driver version 0.9.15 loaded
> bttv: using 8 buffers with 2080k (520 pages) each for capture
> bttv: Bt8xx card found (0).
> ACPI: PCI Interrupt 0000:00:14.0[A] -> Link [LNKB] -> GSI 10 (level, 
> low) -> IRQ 10
> bttv0: Bt878 (rev 17) at 0000:00:14.0, irq: 10, latency: 32, mmio: 
> 0xde003000
> bttv0: detected: Twinhan VisionPlus DVB [card=113], PCI subsystem ID 
> is 1822:0001
> bttv0: using: Twinhan DST + clones [card=113,autodetected]
> bttv0: gpio: en=00000000, out=00000000 in=00f500ff [init]
> bttv0: using tuner=4
> bttv0: add subdevice "dvb0"
> bt878: AUDIO driver version 0.0.0 loaded
> bt878: Bt878 AUDIO function found (0).
> ACPI: PCI Interrupt 0000:00:14.1[A] -> Link [LNKB] -> GSI 10 (level, 
> low) -> IRQ 10
> bt878(0): Bt878 (rev 17) at 00:14.1, irq: 10, latency: 32, memory: 
> 0xde004000
> DVB: registering new adapter (bttv0).
> dst_get_device_id: Recognise [DTTDIG]
> DST type : terrestrial
> DST type flags : 0x10 firmware version = 2
> DVB: registering frontend 0 (DST DVB-T)...
> ======
>
> Any assistance appreciated.
>
> Kind regards,
> Elliot.
>
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