[FS#3643] iwinfo returns bad data

[OpenWrt Bugs]

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A new Flyspray task has been opened.  Details are below. 

User who did this - George Robinson (Goerge255) 

Attached to Project - OpenWrt/LEDE Project
Summary - iwinfo returns bad data
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - OpenWrt 19.07.7 r11306-c4a6851c72 / LuCI openwrt-19.07 branch git-21.054.03371-3b137b5
Device: Netgear R6120

Bad data returned by `iwinfo` for a wireless adapter connected via USB.



root at OpenWrt:~# iwinfo

wlan0     ESSID: "myssid0"
          Access Point: BA:AD:F0:0D:BA:AD
          Mode: Client  Channel: 9 (2.452 GHz)
          Tx-Power: 20 dBm  Link Quality: 51/70
          Signal: -59 dBm  Noise: unknown
          Bit Rate: 52.0 MBit/s
          Encryption: WPA2 PSK (TKIP, CCMP)
          Type: nl80211  HW Mode(s): 802.11bgn
          Hardware: 14C3:7628 14C3:0004 [MediaTek MT76x8]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy0

wlan1     ESSID: "myssid1"
          Access Point: BA:AD:F0:0D:BA:DD
          Mode: Client  Channel: 44 (5.220 GHz)
          Tx-Power: 20 dBm  Link Quality: 43/70
          Signal: -67 dBm  Noise: unknown
          Bit Rate: 54.0 MBit/s
          Encryption: WPA2 PSK (TKIP, CCMP)
          Type: nl80211  HW Mode(s): 802.11nac
          Hardware: 14C3:7662 14C3:7662 [MediaTek MT76x2E]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy1

wlan2     ESSID: "myssid2"
          Access Point: BA:AA:AD:F0:00:0D
          Mode: Client  Channel: 9 (2.452 GHz)
          Tx-Power: 20 dBm  Link Quality: 56/70
          Signal: -54 dBm  Noise: unknown
          Bit Rate: 150.0 MBit/s
          Encryption: WPA2 PSK (TKIP, CCMP)
          Type: nl80211  HW Mode(s): 802.11bgn
          Hardware: 14C3:7628 14C3:0004 [MediaTek MT76x8]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy2



Notice that the same `Hardware` line is returned for `wlan0` and `wlan2` despite different MAC addresses and different `PHY names`.

The wlan2 hardware is the ALFA AWUS036NHA and `lsusb' identifies it as:

root at OpenWrt:~# lsusb -v | grep ID

Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0cf3:9271 Qualcomm Atheros Communications AR9271 802.11n
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub



It is worth mentioning that the `wlan2` interface is fully functional.

 

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3643

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