[linux-dvb] Re: Some progress on Siemens DVB-C analog TV module

[Dominik.Strasser@t-online.de (Dominik Strasser)]

Dominik Strasser wrote:
> Johannes Stezenbach wrote:
>
> > Michael Klapproth wrote:
> >
> > > I've updated with cvs -z3 update -dAP and now i have no picture for
> > > analog tv :-(
> >
> >
> > Which means it did work before?
> Hi Johannes and Michael,
> as it was raining, my weekend was boring, too :-).
> So I dug into the driver why xawtv didn't work for me (while it had 
> worked at some time).
>
> What I found out is, that xawtv queries the device for its capabilities, 
> but (at least for my card) the driver claimed to not to have a tuner, so 
> xawtv didn't tune.
>
> The patch below works around this (however I am not sure that it is the 
> right place)
>
> Index: av7110.c
> ===================================================================
> RCS file: /cvs/linuxtv/dvb-kernel/linux/drivers/media/dvb/ttpci/av7110.c,v
> retrieving revision 1.80
> diff -u -3 -p -r1.80 av7110.c
> --- av7110.c    28 Sep 2003 21:33:03 -0000      1.80
> +++ av7110.c    5 Oct 2003 14:24:43 -0000
> @@ -4673,6 +4673,7 @@ static int av7110_attach (struct saa7146
>                 printk("av7110(%d): DVB-C analog module detected, "
>                         "initializing MSP3400\n",
>                         av7110->dvb_adapter->num);
> +               dev->ext_vv_data->capabilities |= V4L2_CAP_TUNER;
>                 av7110->adac_type = DVB_ADAC_MSP;
>                 dvb_delay(100); // the probing above resets the msp...
>                 msp_readreg(av7110, MSP_RD_DSP, 0x001e, &version1);
Following up myself:
This patch doesn't seem to be right, as vdr doesnÄt work with (only xawtv).
OTOH, I am not quite sure what to do. xawtv checks the driver for its 
capabilites. Does a DVB-C with the analog module have V4L2_CAP_TUNER ?
Or is it just the input "Television" ?

Maybe someone with a better insight on the intrinsics of V4L should 
answer this.

Regards

Dominik



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