Diffstat (limited to 'noncore/settings/networksettings/wlan/wextensions.cpp') (more/less context) (show whitespace changes)
| -rw-r--r-- | noncore/settings/networksettings/wlan/wextensions.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/noncore/settings/networksettings/wlan/wextensions.cpp b/noncore/settings/networksettings/wlan/wextensions.cpp index 16654bb..827d075 100644 --- a/noncore/settings/networksettings/wlan/wextensions.cpp +++ b/noncore/settings/networksettings/wlan/wextensions.cpp @@ -97,12 +97,15 @@ double WExtensions::frequency(){ */ int WExtensions::channel(){ if(!hasWirelessExtensions) return 0; if ( 0 != ioctl( fd, SIOCGIWFREQ, &iwr )) return 0; + + // http://www.elanix.com/pdf/an137e.pdf + double num = (double( iwr.u.freq.m ) * pow( 10, iwr.u.freq.e ) / 1000000000); double left = 2.401; double right = 2.416; for(int channel = 1; channel<= 15; channel++){ if( num >= left && num <= right ) return channel; |