Am 18.06.2005 um 18:11 schrieb Manu Abraham: > Manu Abraham wrote: > >> Hi , >> I was looking at a concept where a driver can distinguish between >> a scan and a zap.. Suggestions would be greatly appreciated .. >> > > I will make my question a bit more specific .. > > While doing a scan, do we require to know the signal strength.. The > driver in question is the dst .. If we do not need to know the > signal strength the dst will tune a bit more faster, since instead > of 2 messages that are sentto the MCU/ASIC, only one need to be sent. > > > Hence tuning will be faster, as i2c communication also takes a > while to happen, and to retrieve the signal strength on a frequency > that does not exist, it takes really a while to return back and can > be a cause for irritation .. > > So i was thinking about removing the get_signal() call itself > during a scan .. at 400kHz i2c clock the time required to transmit a 2-byte-message should be negligible, not? Holger -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.linuxtv.org/pipermail/linux-dvb/attachments/20050618/5f75ed19/attachment.htm
