On Mon, 2008-11-10 at 23:55 +0100, Levente Novák wrote: > Hi Andy, > > Back in July, we were discussing about a problem with a PVR-150 MCE > concerning captures from the OSD of a VCR: > > On Sun, 2008-06-29 at 16:11 -0400, Andy Walls wrote: > > As root, for those two scenarios, if you provide the output of: > > > > # v4l2-dbg -R type=i2cdrv,chip=cx25840 > > > > This will let me see how the cx25843 is set and what it's status is > > (i.e. does it have horizontal sync). > > > > I think it will be a matter of setting amplifier gain and clamping > > settings. > > At that time, my kernel was compiled without kernel debug info so > v4l2-debug was unable to dump the registers. As it was just before my > holidays, later I completely forgot the issue since I rarely use the > composite input. > > Last sunday (faced again with the problem), I compiled the new kernel > with debug on, and finally dumped the registers of the cx25840 as you > will find attached (static.dump for the OSD without tape played and > dynamic.dump when playing back a tape). > > There are obviously lots of differences between them, but I have no > knowledge of the register structure of the chip. Could you have a look > at these files, maybe it will give you an idea about the nature of the > problem. > > Thanks for your help and my excuses for the really huge delay in my > reply.
Does somebody know how to interpret the register dump of the cx25840 (and also how to set a register to a given value)? Some of the registers are clearly different during a static OSD capture and a dynamic one (when the tape is being played). Levente _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
