[pvrusb2] FM tuner support...?

[Felix Lighter]

On 11/14/06, Mike Isely <isely at isely.net> wrote:
> On Sun, 12 Nov 2006, Felix Lighter wrote:
>
> Unfortunately I don't have any specific pointers.  But I'd probably start
> with
> a reading of the V4L2 API specification.  Next I'd probably go look at a V4L
> driver which includes radio support.
>
> My gut feeling is that the V4L side of this implementation should be pretty
> straight-forward.  The hardware side also should not be too bad either; it
> should be just a matter of reprogramming the cx23416 to spit out straight
> MP3
> audio and adjust the pathway in front of it to decode FM radio.  What makes
> that relatively easy is that the USB snoop log you've got contains the magic
> sequence you need to do that.
>
> If you haven't already done so, use decode_log (a utility included with the
> standalone driver) to further dissect that log output.  With decode_log
> you'll
> be able to translate the sequence of USB transactions in the log into the
> actual chip register read / writes and the cx23416 commands that are being
> issued to the part.  The pvrusb2 web documentation has information on how to
> do this (though now that I think of it, this might be slightly though not
> fatally out of date).
>
> If you figure out what's needed specifically to enable the radio, I'd be
> willing to work with you to update the driver appropriately.
>

Sounds great. That'll get me started quite nicely. I'll definitely
start on the hauppauge end of things. Thanks for the offer to help,
and thanks Roger, for the offer to debug. You'll be hearing from me
8-)

Cheers, Felix