On Sunday 25 September 2005 11:27, Trev Jackson wrote:
> On Saturday 24 Sep 2005 23:10, John Clabaugh wrote:
> > On 9/24/05, Hans Verkuil <[EMAIL PROTECTED]> wrote:
> > > On Saturday 24 September 2005 20:26, John Clabaugh wrote:
> > > > Hans:
> > > >
> > > > I've been following the PVR-500 sound issues with great hope for
> > > > finally fixing my sound problem. Unfortunately, I still seem to not
> > > > have sound on my second tuner. I'm beginning to wonder if there is
> > > > something wrong in hardware. Anyhow, here is my log info:
> > >
> > > Can you try the following patch?
> > >
> > > -------- cut here ---------
> > > Index: ivtv-driver.c
> > > ===================================================================
> > > --- ivtv-driver.c (revision 2703)
> > > +++ ivtv-driver.c (working copy)
> > > @@ -1294,7 +1294,8 @@
> > > in one place. */
> > > itv->std++; // Force full standard initialization
> > > ivtv_v4l2_ioctls(itv, NULL, 0, VIDIOC_S_STD, &itv->tuner_std);
> > > - if (itv->options.tuner == TUNER_PHILIPS_FM1216ME_MK3) {
> > > + if (itv->options.tuner == TUNER_PHILIPS_FM1216ME_MK3 ||
> > > + itv->options.tuner == TUNER_PHILIPS_FQ1236A_MK4) {
> > > int cfg = TDA9887_PORT1_ACTIVE|TDA9887_PORT2_ACTIVE;
> > > ivtv_tda9887(itv, TDA9887_SET_CONFIG, &cfg);
> > > }
> > > -------- cut here ------------
> > >
> > > If this does not work, do you have to option of testing the card in a
> > > Windows machine? That way we can obtain I2C logs and see if there is
> > > something special that Hauppauge is doing that we don't.
> > >
> > > Hans
> > >
> > >
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> >
> > I applied the patch to svn 2707 and tried again. Still no sound on
> > the second tuner. I have windows installed on another PC, so I will
> > try it there. Is there a HOWTO for gathering I2C info under Windows?
> > Any chance I am having problems because I'm running FC2? Thanks again
> > for your help.
>
> Hi
>
> To monitor the I2C bus you need to connect wires to your video capture card
> I2C bus then run those wires to the parallel port of a different computer.
> The main website with the program you use on the monitoring computer along
> with a wiring diagram please look at:
>
> http://warmcat.com/milksop/cheapi2c.html
>
> However my video capture card would not work properly when using this
> circuit, so if your card stops working when you plug the i2c bus into the
> parallel port you could try the circuit shown on the following page:
>
> http://ivtv.writeme.ch/tiki-index.php?page=Monitoring+I2C+Bus
>
> To locate the I2C bus you need to download the data sheet of one of the
> chips on your capture card and then look for SDA and SCL.
>
> Obviously there is some risk in this and there is the possibility you could
> damage your capture card or PC, so the best of luck.
Not needed anymore. c.corax patched the Hauppauge driver to provide debug logs
of all i2c commands send over the i2c bus. It hooks into the function(s) that
actually handles the I2C traffic. Works great and is very precise. And no
fiddly hardware to setup.
Hans
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