AW: [mythtv] (Hauppauge DVB-s Nova / Hauppauge WinTV DVB-s) patch

[Christian Höhle]

> What is the equipment connected to the card?
> Sounds like you only have a single LNB
> connected directly to the card by the comments in the patch?
That's right. I have a two single LNBs connected to my two cards.

> Also, have you tried the diseqc_type 1 (ToneSwitch) and 0
(ToneVoltageLnb)? 
I tried both, but the result stays the same.

> Most diseqc switches have compatability mode with ToneSwitch,
> and if you only have a LNB directly connected to your card,
> you would be better off with just using ToneVoltageLnb,
> since that gives much faster zapping.
What do you mean with "faster zapping"? The time between starting a tuning
and the message "successfully tuned to ..." is much less than a second for
me. Then, mythtv seems to prebuffer a bit which lasts for approx. 2 seconds,
then I have got the output on tv.

I use diseq_type 0 at the moment, that's why my changes are located mainly
inside ToneVoltageLnb().
Before I clean it up and adopt the changes to other functions which could
need it, I wanted to hear from a "professional" wether my patch isn't
useless or stupid at all ;-)

It seems to me that the szap-code contains a polarization- and
frequency-dependent diseq command, whereas neither ResetDiseqc() nor any of
ToneSwitch or ToneVoltageLnb contains something similar (as far as I can
see).

//cmd.cmd.msg[3] = 0xf0 | (((0 * 4) & 0x0f)
//                 | ((tuning.tone == SEC_TONE_ON) ? 1 : 0) |
//                   ((tuning.voltage == SEC_VOLTAGE_13) ? 0 : 2));

On the other hand, szap sets the tone to "SEC_TONE_OFF" before applying the
other settings. Perhaps my cards are a little bit non-standard in that way.

Chris