On 09/13/2014 02:37 AM, Shuah Khan wrote: > Mauro/Hans, > > Thanks for both for your replies. I finally have it working with > the following: > > S_INPUT > S_OUTPUT S_OUTPUT is not necessary. It will never be used in combination with a modulator since we don't support TV modulators at all. > S_MODULATOR I think this is unnecessary as well: we only have radio modulators and those are always stand-alone drivers. > S_TUNER > S_STD > S_FREQUENCY > S_HW_FREQ_SEEK > S_FMT > - get tuner in shared mode and hold it > - i.e return with tuner held > > STREAMON > - get tuner in shared mode and hold it > - i.e return with tuner held > STREAMOFF > - put tuner (get is done in STREAMON) I wouldn't do this. Once you start streaming you hold the tuner and it isn't released until the filehandle closes. The V4L2 API doesn't have an explicit 'release tuner' ioctl. > > QUERYSTD > G_TUNER (au0828 does tuner init in its g_tuner ops) > - get tuner in shared mode and hold it Note that G_TUNER should still work if it can't get hold of the tuner. I.e., it should never return an error. > - service request > - put tuner > > With these changes now I have digital stream not get > disrupted as soon as xawtv starts. I am working through > issues related to unbalanced nature of tuner holds in > analog mode. Nice! Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
