Hi, how should this discussion take place?
Up to now, my personal experience showed only some drawbacks in the frontend API, and reading the current proposal v4_0.3 I have some comments/questions concerning this part: - dvb_fe_type: DVB-S2 is missing and I personally would also like to see ASI here... - frontend status: - BER is lacking a proper definition (to which base is it calculated?) - signal strength: same problem, what are the ranges? - snr: again, no base and ranges given For signal strength and snr, I already wrote about a possible partly solution: provide a means to query the frontend for corresponding min and max values (in dvb_frontend_info?). I know signal strength is very unreliable for most frontends (are silicon frontends really better, as claimed from time to time?), but at least the snr can be calculated very good for most demodulators. Would it be possible to do this calculation somewhere "near the driver" to provide a uniform value to the caller regardless of the frontend actually used? I understand floating-point is not possible in the kernel, but what other possibilities are there to get rid of the device-dependent snr calculation in the application? Please, no debate about complete user-space driver here! I really hope there are other solutions, but I have no idea what is possible. Best regards, Wolfgang _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
