Command equivalent in iw

[Larry Finger <Larry.Finger@xxxxxxxxxxxx>]

Someone using the rtlwifi code that is posted at GitHub wants to know the iw 
equivalent of "iwpriv wlan0 bandcfg" to limit the wireless interface to 802.11b, 
802.11g, or 802.11n. I only use simple iw commands, and I could not answer the 
question.

Thanks,

Larry