NXP Semiconductors
UM11490
Feature Configuration Guide for NXP-based Wireless Modules on i.MX 8M Quad EVK
2 Wi-Fi features and configurations
2.1 Scan the visible Access Points
This section describes the scanning of the visible Access Points using the NXP-based
wireless module. Linux operating system provides the standard utilities to show/
manipulate wireless devices and their configuration.
2.1.1 Using
iw
command
iw
command is one of the methods used to scan visible access points.
Execute the command to start the scan
root@imx8mqevk:~# iw dev mlan0 scan
Command output example:
[11204.740176] wlan: mlan0 START SCAN
[11207.573646] wlan: SCAN COMPLETED: scanned AP count=1
BSS 44:82:e5:10:2c:38(on mlan0)
TSF: 11207445411 usec (0d, 03:06:47)
freq: 2427
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble ShortSlotTime RadioMeasure
(0x1431)
signal: -56.00 dBm
last seen: 0 ms ago
SSID: destin
Supported rates: 1.0* 2.0* 5.5* 6.0 9.0 11.0* 12.0 18.0
DS Parameter set: channel 4
Country: in Environment: Indoor/Outdoor
Channels [1 - 13] @ 21 dBm
TPC report: TX power: 20 dBm
ERP: NonERP_Present Use_Protection
RSN: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: CCMP TKIP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WPA: * Version: 1
* Group cipher: TKIP
* Pairwise ciphers: CCMP TKIP
* Authentication suites: PSK
WMM: * Parameter version 1
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
Extended supported rates: 24.0 36.0 48.0 54.0
BSS Load:
* station count: 4
* channel utilisation: 52/255
* available admission capacity: 0 [*32us]
HT capabilities:
Capabilities: 0x11ed
RX LDPC
HT20
SM Power Save disabled
RX HT20 SGI
RX HT40 SGI
UM11490
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© NXP B.V. 2021. All rights reserved.
User manual
Rev. 2 — 29 January 2021
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