[linux-dvb] Re: [PATCH] fix for stream corruption on budget / Nova-T cards

["Robert Schlabbach" <robert_s@gmx.net>]

From: "Jon Burgess" <mplayer@jburgess.uklinux.net>
> This says to me that the DMA always fills the buffer before starting
> again at the beginning. There doesn't seem to be any evidence of it
> automatically switching on a frame sync signal. Perhaps this hardware
> was only on older cards or needs a specific enable?

The hardware does not generate any VSYNC signals, and thus no frame
signals. To utilize the odd/even field DMA mechanism, you have to program
the SAA7146A to force the toggling of the field. See the DD1_INIT register
settings for details.

Regards,
--
Robert Schlabbach
e-mail: robert_s@gmx.net
Berlin, Germany



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