如何修改wifi信号值小于90dbm的不显示？

修改方法如下：

\hardware\mediatek\wlan\wpa_supplicant_8\wpa_supplicant\bss.c文件中 

wpa_bss_update_scan_res这个函数 
++ if(res->level>-80) 
++ { 
++ wpa_printf(MSG_ERROR, "FISHER add for test wpa_bss_update_scan_res11 level>-80"); 
++ } 
++ else 
++ { 
++ wpa_printf(MSG_ERROR, "FISHER add for test wpa_bss_update_scan_res22 level<=-80"); 
++ return; 
++ } 
ssid = wpa_scan_get_ie(res, WLAN_EID_SSID); 
if (ssid == NULL) { 
wpa_dbg(wpa_s, MSG_DEBUG, "BSS: No SSID IE included for " 
MACSTR, MAC2STR(res->bssid)); 
return; 
}