iw wireless tool not showing survey data for all channels -
iwlan2 survey dump This is to show survey information for all available channels. But it fails to do this and does not show noise level information for most channels every The driver will not support the feature. I just tried with two cards I have: Qualcomm Atheros AR5212 / AR5213 wireless network adapter supports a survey dump And here are the results Survey data from Wlan1 frequency: 2412 MHz Noise: -98DBM channel Active Time: 51514 MS Channel Busy Time: 6096 MS Channel Time: 5688 MS Channel Transmit Time: 0 MS Broadcom Corporation BCM 4313 802.11 seeding wireless network The adapter does not return anything. iw Survey Dump - will register the handler system with NL; Although this survey is dependent on the underlying driver support for the dump.
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