[vdr] signal noise ratio and signal strength

[Alessio Sangalli <alesan@manoweb.com>]

Hi. I've written few weeks ago asking for an explanation of a couple of 
calls to the DVB API; probably everyone had to work hard (or perhaps too 
many chocolate eggs around) so I try to ask again:

I'm using the FE_READ_SNR and FE_READ_SIGNAL_STRENGTH calls to the DVB 
api. I can read the values but I have a question: I'd like to know the 
range of values I can read from those calls. The minimum and the 
maximum, the meaning of the values, if positive and negative values are 
legal...

thank you
as