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Linux/TDA2: wlan0 no wireless extensions

Part Number: TDA2

Tool/software: Linux

Hi Expert,

I'm running Linux Vision SDK v03.02.00(4.4.84) on the custom PCBA.

 

Check ASUS USB-N13 rev A1, kernel modules is rt2800usb.

 

Select ralink driver.

 

Check driver is loaded.

When plug usb-N13, log is below:

But, wlan0 no wireless extensions.

why?

wlan0 try restart, and print:

IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

should I be solved "wlan0 no wireless extensions" first?

Could you please give some suggestion here?

Thanks in advance.