Quick question,
What gcc version are use using to compile the driver?
Hans
On Monday 02 January 2006 20:17, [EMAIL PROTECTED] wrote:
> Hans,
>
> I wasn't able to apply the patch ( I'm a newbie w/ linux ) so I just
> modified the source with the information contained in your file.
>
> no hotplug gives:
>
> [ 1348.171567] ivtv0: loaded /lib/modules/v4l-cx2341x-enc.fw firmware
> (262144 bytes) [ 1348.423225] ivtv0: firmware sum = 0084a9cb
>
>
> hotplug gives:
>
> [ 1865.847204] ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144
> bytes, sum = 0084a9cb)
> [ 1866.098870] ivtv0: firmware sum = 00206879
>
> This is very interesting, it loads the firmware in load_fw_direct and
> then has the incorrect firmware in ivtv_enc_firmware_copy. The memcpy
> was successful, it did not return NULL(I checked).
>
> Could something else be overwriting this variable? Another thread
> perhaps?
>
> I'm willing to continue debugging but need a little help.
>
> Thanks,
>
> Michael
>
> Quoting Hans Verkuil <[EMAIL PROTECTED]>:
> > Michael,
> >
> > I've attached a patch for ivtv-firmware.c. I'm curious what the
> > results will be. To be continued tomorrow...
> >
> > Hans
> >
> > On Monday 02 January 2006 01:15, [EMAIL PROTECTED] wrote:
> > > Hans,
> > >
> > > Your guess was bang on - reverting to the "old way" of loading
> > > the firmware results in success. Something in the hotplug is
> > > causing grief.
> > >
> > > If you can give me a hand with the C, I can attempt the
> > > summations that you have requested. It would be nice to get to
> > > the bottom of this one.. I'm probably not the only one that has
> > > run into this problem.
> > >
> > > Cheers,
> > >
> > > Michael
> > >
> > > Quoting Hans Verkuil <[EMAIL PROTECTED]>:
> > > > On Monday 02 January 2006 00:27, [EMAIL PROTECTED] wrote:
> > > > > Hans,
> > > > >
> > > > > I've performed the operations as requested, and achieve the
> > > > > same result - I assume this removes zero padding on the
> > > > > firmware file?
> > > >
> > > > correct
> > > >
> > > > > [ 307.521854] ivtv0: loaded v4l-cx2341x-enc.fw firmware
> > > > > (262144 bytes) [ 307.753271] ivtv0 warning: Encoder mailbox
> > > > > not found [ 307.784732] ivtv0 warning: Decoder mailbox not
> > > > > found [ 307.784735] ivtv0: Error locating firmware.
> > > > > [ 307.791075] ivtv0: Error -12 on initialization
> > > > > [ 307.791084] ivtv: probe of 0000:02:06.0 failed with error
> > > > > -12 [ 307.791090] ivtv: ==================== END INIT IVTV
> > > > > ====================
> > > > >
> > > > > To be certain that the firmware was correct, I reloaded 0.4.0
> > > > > using the shortened firmware file and was able to watch tv
> > > > > once again.
> > > > >
> > > > > I believe we have ruled out the firmware.. could there be
> > > > > something in ivtv 0.4.1/2 that is causing the grief? Is there
> > > > > some means of enabling more verbose debug messages? I don't
> > > > > mind recompiling...
> > > >
> > > > Well, ivtv-0.4.1 switched to the hotplug mechanism. My guess
> > > > the problem is with that.
> > > >
> > > > Edit ivtv-firmware.c, look for CONFIG_FW_LOADER and replace
> > > > that #if with #if 0. Do the same in ivtv-driver.h and
> > > > cx25840.h.
> > > >
> > > > Recompile, install and test. If it now works again, then it is
> > > > the new hotplug stuff that breaks things. But why don't I get
> > > > the same problems? Weird.
> > > >
> > > > If it is hotplug related and if you are handy with C, then can
> > > > you perhaps do some tests? I was thinking of hacking
> > > > ivtv-firmware.c so that the firmware load routines so a simple
> > > > sum of all the bytes in the firmware and then show the grand
> > > > total when done. I'd be very interested to see if there are any
> > > > difference between the hotplug and non-hotplug cases.
>
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