[linux-dvb] Dposh DVB-T USB2.0(ULi M9207) initialising OK but no response from scan

Andrew Websdale websdaleandrew at googlemail.com
Wed Jul 2 14:28:42 CEST 2008


2008/7/2 Antti Palosaari <crope at iki.fi>:

> terve Andrew,
> Andrew Websdale wrote:
>
>> Hi All,
>>
>> I've been trying to amend the M920x driver to cope with the MT2060 tuner.
>> My dmesg output looks encouraging :
>> usb 5-1: new high speed USB device using ehci_hcd and address 5
>> usb 5-1: configuration #1 chosen from 1 choice
>> Probing for m920x device at interface 0
>> dvb-usb: found a 'Dposh(mt2060 tuner) DVB-T USB2.0' in warm state.
>> dvb-usb: will pass the complete MPEG2 transport stream to the software
>> demuxer.
>> DVB: registering new adapter (Dposh(mt2060 tuner) DVB-T USB2.0)
>> m920x_mt352_frontend_attach
>> DVB: registering frontend 0 (Zarlink MT352 DVB-T)...
>> m920x_mt2060_tuner_attach
>> MT2060: successfully identified (IF1 = 1220)
>> dvb-usb: Dposh(mt2060 tuner) DVB-T USB2.0 successfully initialized and
>> connected.
>>  but scanning produces no result. I thought it might be the firmware so I
>> used USBSnoop ( ver 2.0 from here <
>> http://www.pcausa.com/Utilities/UsbSnoop/SniffUSB-x86-2.0.0006.zip>  , I
>> think its slightly easier to use than the original) and extracted a new
>> firmware file (attached) . The firmware loaded without complaint, but still
>> no scan result. I'm a bit stuck now, anyone got any suggestions as to how I
>> should proceed?
>>
>
> I have following list to check:
> 1) firmware (you tested this one already)
> 2) demodulator (it is MT352 I think, but configuration / settings could be
> wrong)
> 3) wrong endpoint used for mpeg ts
>
> I can help if you take sniffs with usbsnoop, but hopefully you will find
> error yourself.
> http://benoit.papillault.free.fr/usbsnoop/
>
> regards
> Antti
> --
> http://palosaari.fi/





1)Sorry, forgot to attach firmware I made from usbsnoop(here it is)
2)The front end is MT352 - which configs/settings may need tweaking?
3)Whereabouts is the mpeg ts endpoint defined/set?

I'll have another go with usbsnoop later & post the log if I don't get
anywhere

regards Andrew
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