On Sun, 8 Feb 2009, Martin Dauskardt wrote:
> > For pvrusb2 users who have OnAir Creator or Sasem tuners... Take a look
> > here:
> >
> >
> http://www.autumnwave.com/index.php?option=com_docman&task=doc_details&gid=127&Itemid=282
> >
> > Or go to www.autumnwave.com, select support -> downloads then select the
> > Creator & Sasem products, and in that list you will find the encoder
> > firmware. Click the "details" link for the firmware and you'll get to
> > the above page.
> >
> > Please thank the folks at Autumnwave for graciously making their
> > firmware for the cx23416 encoder directly available.
> I looked into the file with a hex editor. It says "Version 2.04.008". So it
> seems to be an older firmware - this one was used with the ivtv driver around
> 2004.
> The current recommended firmware v4l-cx2341x-enc.fw for ivtv is Version
> 2.06.039 (http://dl.ivtvdriver.org/ivtv/firmware/ivtv-firmware.tar.gz)
> which has a size of 368 kB (the extra size is zeropadding and is ignored by
> the ivtv + pvrusb2 driver). Does this firmware not work with those models? I
> always thought the firmware was generic and manufacturer-independent.
> Do pvrusb2 devices in generally work better with other firmware versions than
> the one used by ivtv devices?
When viewed from a practical standpoint, currently all known cx2341x
firmware versions work with the pvrusb2 driver. To date, I know of no
technical issues that would drive one to use one firmware version over
another. Realize I'm talking about this in the context of the pvrusb2
driver; I can't speak to what is said in relation to the ivtv driver.
>From a legal standpoint (note! IANAL), you are supposed to use the
firmware supplied by the vendor of your hardware. So in the case of
OnAir, it's that specific 2.04.008 firmware that they are supplying.
Of course, the hardware vendor probably isn't going to care if you run
somebody else's firmware on their hardware. However the opposite is
most certainly not true: I imagine Hauppauge would get upset (and
probably withdraw permission to distribute on the ivtv site) if they
were to discover people knowingly using Hauppauge-supplied firmware for
a competitor's (e.g. OnAir) device. Therefore it's important - for all
pvrusb2-driven hardware - that there be a means for a user to get the
needed firmware from the maker of his/her specific hardware.
Yes, I know that these encoder firmware images in fact may come from a
common 3rd party (i.e. Conxant). Actually I'm not entirely sure, but I
don't really care either. It's not relevant, since the end user
licensing such as it is comes from the device maker. Technically any
encoder firmware should work on any device. But if you want to stay
kosher with what the vendor permits in relation to licensing of its
supplied firmware, then you really should be using a firmware image that
ultimately came from that vendor.
-Mike
--
Mike Isely
isely @ pobox (dot) com
PGP: 03 54 43 4D 75 E5 CC 92 71 16 01 E2 B5 F5 C1 E8
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