[mpeg2] Re: kfir and linux 2.4.XX

[Hakan Lennestal <hakanl@cdt.luth.se>]

Would it be possible to have these changes added to the CVS code ?

/Håkan

In message <018701c16618$1eedbe30$160e10ac@hades>, "Mark Cuss" writes:
> Hello!
> 
> I've been using the Kfir board under RedHat 7.2 with the kernel upgraded to
> 2.4.13.  We did need to do some mods to the driver which, unfortunately, are
> not very well documented.  We needed to fix some stuff to do with DMA and to
> fix the unloading of the module.
> 
> If you need more info I could probably send you the new, changed code.
> 
> Mark
> 
> ----- Original Message -----
> From: "Andrew Thomas" <dat@hpl.hp.com>
> To: <mpeg2@linuxtv.org>
> Cc: <dat@hpldat.hpl.hp.com>
> Sent: Thursday, November 01, 2001 7:14 PM
> Subject: [mpeg2] kfir and linux 2.4.XX
> 
> 
> > I am trying to get a Kfir board working with the Linux driver.
> >
> > I know that the card does work, I've successfully used it on a
> > Windows 98 machine and encoded a NTSC stream.
> >
> > I've tried several versions of the linux kernel with Redhat 7.2
> > filesystem/applications. The kernels I've used are built from 2.4.2
> > (Redhat SRPM), 2.4.12 (Redhat SRPM) and 2.4.9 (vanilla Linus
> > distribution).
> >
> > I've also tried 4 different PC's: Pentium 166/Intel Triton;
> > 1Ghz P3 Serverworks chipset; 450Mhz P3 Intel chipset; 750 MHz P3
> (different
> > intel chipset). [All of these machines are made by HP of course..]
> >
> > And I'm using the cvs version of the driver. I've used i2c-core and
> > i2c-algo-bits from both the kernel distribution and those in the cvs
> > tree.
> >
> > Moreover, I've also tried both PAL and NTSC signals.
> >
> > The behaviour is typically: the modules load successfully, but
> >
> > cat /dev/video0 > /tmp/foo.mpg
> >
> > generates a zero length file.
> >
> > However, on the Pentium machine, the same command locks up the system
> > (requiring a reset) - I used this hardware and Win98 to test the kfir
> card,
> > and and the card does work with win98 on that platform.
> >
> > I'd like to hear from anyone that has this card working. Could you
> > let me know what kernel version you're running, on what hardware,
> > and any changes you might have made to the driver?
> >
> > I've started tinkering with the source, but it's very difficult to
> > make progress as the driver is the only documentation I have. Are there
> > any documents available which describe the hardware? (at the level
> > of detail where it would be possible to maintain the driver)
> >
> > Many thanks,
> >
> > Andrew
> > -------------
> > Andrew Thomas                  | DISCLAIMER: opinions expressed in this
> > Hewlett-Packard Laboratories   | message are personal and do not represent
> > 1501 Page Mill Road  MS 1U-17  | the opinions of Hewlett Packard Co.
> > Palo Alto CA 94304-1126        |
> >
> >
> 
> 
> 
>