> > * signal isn't reported in dBm or mBm. The scan response from > > the firmware tells me some "RSSI" value. > > #define MRVDRV_NF_DEFAULT_SCAN_VALUE (-96) > #define SCAN_RSSI(RSSI) (0x100 - ((u8) (RSSI))) > > iwe.u.qual.level = SCAN_RSSI(bss->rssi); > > rssi = iwe.u.qual.level - MRVDRV_NF_DEFAULT_SCAN_VALUE; > > so it's more or less dBm. I'm not that sure about that. I made a test and moved with my laptop away from an access-point. In the table below you find the signal from ipw2200/iwconfig. And in the second column the raw "u8 rssi" from libertas' scan response: ipw2200 libertas signal rssi -28 38 -36 42 -42 44 -32 46 -38 47 -41 42 -49 47 -49 48 -49 49 -49 48 -47 59 -49 65 -52 54 -55 57 -43 73 So, it's everything but an RSSI, because an RSSI would be high in the vincinity of the AP and decrease when farther away. The name is bogus, don't put too much value in it :-) SCAN_RSSI(rssi) = 0x100 - rssi = 218. That doesn't look like a dBm either. -- http://www.holgerschurig.de -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
