[linux-dvb] Re: ves1820 not tuning, but works OK in Windows :(

[Gavin Hamill <gdh@acentral.co.uk>]

On Wednesday 08 December 2004 08:11, jouni.karvo@tkk.fi wrote:
> hello,
>
>
> AFAIK the driver 1.1.0 did not tune ves1820 properly, 1.1.1 might
> work.  I have not tried the latest CVS or 2.6.10-rc1.

No joy - I tried 1.1.1 in the build-2.4 dir, and also the '2004-11-17' DVB 
tarball from ftp.cadsoft.de/vdr/Developer which both loaded fine, but with 
the same lack of result:

telly:~# dvbtune -qam 64 -s 6952 -f 411
Using DVB card "VES1820 based DVB-C frontend"
tuning DVB-C to 411, srate=6952000
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_CARRIER FE_HAS_VITERBI
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_CARRIER FE_HAS_VITERBI

etc.

I am certain that I manually rmmod'ed all the DVB modules in between trying 
each driver version. I also know the FE_HAS_VITERBI is a red herring because 
of this code in ves1820.c:

                if (sync & 2)
                        *status |= FE_HAS_SIGNAL;

                if (sync & 2)
                        *status |= FE_HAS_CARRIER;

                if (sync & 2)           /* XXX FIXME! */
                        *status |= FE_HAS_VITERBI;

so no wonder I get all three 'positive signs' :(

Where can I go from here? The card works in Windows, is there some way I can 
view the contents of the tuning registers inside Windows to aid the 
debugging?

Cheers,
Gavin.