Seems like this used to work. NIC is ath9k_htc driver, configured with one VAP and one station. Both are admin down, but still get EBUSY when trying to set the frequency. Seems like this used to work (on ath9k driver, at least). [root@lec2010-ath9k-1 lanforge]# ifconfig wlan1 wlan1 Link encap:Ethernet HWaddr A0:F3:C1:24:61:2B inet addr:11.97.2.5 Bcast:11.97.255.255 Mask:255.255.0.0 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:761 errors:0 dropped:0 overruns:0 frame:0 TX packets:402 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:129222 (126.1 KiB) TX bytes:74364 (72.6 KiB) [root@lec2010-ath9k-1 lanforge]# ifconfig vap1 vap1 Link encap:Ethernet HWaddr 00:A0:00:00:00:90 inet addr:10.99.1.1 Bcast:10.99.255.255 Mask:255.255.0.0 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:16435018 errors:0 dropped:0 overruns:0 frame:0 TX packets:9082445 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2204413501 (2.0 GiB) TX bytes:1451899217 (1.3 GiB) [root@lec2010-ath9k-1 lanforge]# ./local/sbin/iw phy wiphy1 set freq 2437 command failed: Device or resource busy (-16) Thanks, Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html