kevin liu wrote: > Yeah, I did this part of code already. > I design mt2131_set_tv_freq(struct i2c_client *cli, unsigned int > freq) function and I compile this part of code into tuner.ko just like > mt20xx code has done, > ++++++++++++++++++++++++++++++++++++++++++++++++ > static void mt2131_set_tv_freq(struct i2c_client *client, unsigned > int freqency) > If this is your function prototype, then you must be using much older v4l-dvb code. You'll have to use the most recent mercurial tip in order to use the new hybrid features after the recent tuner refactoring. [code snipped] > ++++++++++++++++++++++++++++++++++++++++++++++ > For mt2131, I use the same init parameters as in ATSC, and the > same algorithm for frequency parameters setting. > I can see the function correctly called when VIDIOC_S_FREQUENCY. > But my tv card's demod just can't get a valid NTSC IF signal. > So I suspect if mt2131 has different init params or different freq > set algorithm for NTSC. > Looks like you just copied the atsc code. I think you'll probably need to use slightly different settings in order to use NTSC instead of ATSC... Also, you probably have to handle a tda988x IF demod. Try using the latest mercurial tip and add analog support for mt2131 that way -- should be easier. Good Luck, Mike > On Nov 26, 2007 1:11 PM, Michael Krufky <mkrufky@xxxxxxxxxxx> wrote: > >> >> kevin liu wrote: >> >>> Dear: >>> In Linux DVB framework, mt2131 works for atsc tv mode. >>> But the problem is that can I use the same module when I want to see any >>> NTSC tv program? >>> >> mt2131 currently does not support analog television. All we need is to fill .set_analog_params, and call it from tuner-core.c, and then it can work. >> >> -Mike Krufky >> >> _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
