Re: Hauppage Nova: doesn't know how to handle a DVBv3 call to delivery system 0

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On Sat, Jan 14, 2012 at 11:44 PM, Gianluca Gennari <gennarone@xxxxxxxxx> wrote:
>
> Il 15/01/2012 00:41, RazzaList ha scritto:
> > I have followed the build instructions for the Hauppauge MyTV.t device here
> > - http://linuxtv.org/wiki/index.php/Hauppauge_myTV.t and built the drivers
> > as detailed here -
> > http://linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_D
> > evice_Drivers on a CentOS 6.2 i386 build.
> >
> > When I use dvbscan, nothing happens. dmesg shows "
> > dvb_frontend_ioctl_legacy: doesn't know how to handle a DVBv3 call to
> > delivery system 0"
> >
> > [root@cos6 ~]# cd /usr/bin
> > [root@cos6 bin]# ./dvbscan /usr/share/dvb/dvb-t/uk-Hannington >
> > /usr/share/dvb/dvb-t/channels.conf
> > [root@cos6 bin]# dmesg | grep dvb
> > dvb-usb: found a 'Hauppauge Nova-T MyTV.t' in warm state.
> > dvb-usb: will pass the complete MPEG2 transport stream to the software
> > demuxer.
> > dvb-usb: schedule remote query interval to 50 msecs.
> > dvb-usb: Hauppauge Nova-T MyTV.t successfully initialized and connected.
> > usbcore: registered new interface driver dvb_usb_dib0700
> > dvb_frontend_ioctl_legacy: doesn't know how to handle a DVBv3 call to
> > delivery system 0
> >
> > I have searched but can't locate a fix. Any pointers?
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-media" in
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> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >
>
> Hi,
> this patch will likely fix your problem:
>
> http://patchwork.linuxtv.org/patch/9492/
>
> Best regards,
> Gianluca

It's very likely the case I'm doing something wrong and I apologise in
advance! However some help/guidance would be great...

I have downloaded the sources as described in the basic approach here
- http://linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers

In the source there is no file called "dvb_frontend.c", so I assume I
start the media_build/build script?
If I do, eventually this creates
media_build/linux/drivers/media/dvb/dvb-core/dvb_frontend.c

I then apply the patch to
media_build/linux/drivers/media/dvb/dvb-core/dvb_frontend.c, and I can
see the added elements...
....
static int dvb_frontend_clear_cache(struct dvb_frontend *fe)
{
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        int i;
       	u32 delsys;

        delsys = c->delivery_system;
        memset(c, 0, sizeof(struct dtv_frontend_properties));
        c->delivery_system = delsys;

        c->state = DTV_CLEAR;

        dprintk("%s() Clearing cache for delivery system %d\n", __func__,
               	c->delivery_system);
................

After a reboot (as I have not got a clue about unloading modules etc.)
I then execute make install but I still get the same error
"dvb_frontend_ioctl_legacy: doesn't know how to handle a DVBv3 call to
delivery system 0" when I use dvbscan.
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