On Wed, 2011-08-24 at 09:31 -0400, Devin Heitmueller wrote: > On Wed, Aug 24, 2011 at 9:25 AM, Nick Nobody <[email protected]> wrote: > > Thanks Andy and Devin for your responses :) > > > > It seems both femon and I assumed the upper bound for the signal quality > > and snr was 0xffff. That makes sense that femon would not accurately > > report those values in the "human readable" format. > > > > Do either of you know off hand what the upper limit is for those values? > > If not don't waste your time, I'll dig around for them. > > For ATSC, the upper bound for SNR is 30.0 dB. The value is in hex on > a 0.1dB scale, so 0x12c = 300 = 30.0 dB. For ClearQAM the upper bound > is 40.0. > > > Devin: In the past I'm pretty sure I've seen the signal strength and snr > > values differ (albeit not by much) but for the most part they're exactly > > the same. > > There might be some slight variance because the two values are not > retrieved in the kernel call. So basically you're seeing the same > value sampled twice, so you might see slight deviation even though the > two values are printed on the same line. > > Devin >
Cool, thanks for the info Devin. nick _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
