#> iwspy eth0 ap              (MAC addresses modified on purpose)
eth0      Access Points in range:
    00:60:1D:xx:xx:xx : Quality 30/92 ; Signal -68 dBm ; Noise -98 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 28/92 ; Signal -68 dBm ; Noise -96 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 7/92 ; Signal -89 dBm ; Noise -96 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 13/92 ; Signal -81 dBm ; Noise -94 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 8/92 ; Signal -86 dBm ; Noise -94 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 8/92 ; Signal -88 dBm ; Noise -96 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 14/92 ; Signal -86 dBm ; Noise -100 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 8/92 ; Signal -88 dBm ; Noise -96 dBm (updated)

#> iwpriv eth0 gscan_enable   (check if scanning is enabled)
eth0      gscan_enable:1

#> iwpriv eth0 sscan_enable 0 (disable automatic scanning)

#> iwpriv eth0 gscan_enable
eth0      gscan_enable:0  

#> iwspy eth0 ap              (as a result of disabling automatic scanning)
eth0      No Access Point in range

#> iwpriv eth0 ap_scan        (issue a scanning command)

#> iwspy eth0 ap              (as a result of the previous scan command)
eth0      Access Points in range:
    00:60:1D:xx:xx:xx : Quality 28/92 ; Signal -68 dBm ; Noise -96 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 23/92 ; Signal -73 dBm ; Noise -96 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 14/92 ; Signal -79 dBm ; Noise -93 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 10/92 ; Signal -88 dBm ; Noise -98 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 8/92 ; Signal -88 dBm ; Noise -96 dBm (updated)

#> iwpriv eth0 sscan_enable 1 (reenable automatic scanning)

#> iwspy eth0 ap
eth0      Access Points in range:
    00:60:1D:xx:xx:xx : Quality 28/92 ; Signal -68 dBm ; Noise -96 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 23/92 ; Signal -73 dBm ; Noise -96 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 10/92 ; Signal -86 dBm ; Noise -96 dBm 
    00:60:1D:xx:xx:xx : Quality 14/92 ; Signal -79 dBm ; Noise -93 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 10/92 ; Signal -88 dBm ; Noise -98 dBm (updated)
    00:60:1D:xx:xx:xx : Quality 8/92 ; Signal -88 dBm ; Noise -96 dBm (updated)