[linux-dvb] Elgato EyeTV Diversity patch

Michael Müller mueller_michael at nikocity.de
Mon Sep 15 09:08:33 CEST 2008


Hi Patrick!

Am 15.09.2008 um 00:55 schrieb Patrick Boettcher:

> Hi Michael,
>
> On Sun, 14 Sep 2008, Michael Müller wrote:
>> Simply adding a new entry beside the Hauppauge Nova-T stick using the
>> new ids didn't work. Using trail and error I was able to find the
>> right combination. I also was able to activate the remote
>> control. Since the other devices that use stk7070pd_frontend_attach0
>> and stk7070pd_frontend_attach1 as frontends doesn't activate the RC I
>> needed to start a section for my stick. If it doesn't hurt the other
>> devices to have a RC defined perhaps you should combine them.
>
> Yes, please do that.

I'll do that.

> And send the patch again with your Signed-off-by-line and both file- 
> changes created with hg diff of the v4l-dvb repository.

It will be the first time for me. ;-)

>
>> Although it is stated that the diversity mode is currentl not
>> supported it seems to be necessary that both antenna plugs are
>> connected. I have an active antenna and I thought that without
>> diversity it would be the best to connect the antenna directly to the
>> adapter that I want to use. But in this combination 'scan' only
>> creates 'WARNING: >>> tuning failed!!!' messages. If I use the Y- 
>> cable
>> to connect the antenna to both adapters scan is able to find the TV
>> channels. Do you have an explanation for this behaviour?
>
> As you might have noticed, pluging the hardware results in having  
> two /dev/dvb/adapters. Diversity is in fact disabled, but dual-mode  
> (sometimes referred as PVR) is activated by default.

Yes, but scan uses adapter0 frontend0 by default. So why does it  
makes failing to scan adapter0 if the antenna is not connected to  
adapter1?

> Diversity actually is the combination of the signal resulting from  
> two different antennas (and tuners and demodulators). This is not  
> yet supported by LinuxTV-drivers.
>
>> Are there plans to add support for the diversity mode?
>
> Yes.

Any timeline?

Need help?

Regards

Michael


More information about the linux-dvb mailing list