Hi, All, Now I am developing a wireless driver under mac80211 statck(http://linuxwireless.org/). After the associate the stack, the host send a probe package , the AP echo a probe-resp package. Then the mac80211 say disassociate it{wlan0: disassociate(reason=3)}. The dmes is below, any suggestion is welcomed. wlan0: Initial auth_alg=0 wlan0: authenticate with AP 00:1d:0f:61:91:38 phy5: TX to low-level driver (len=30) FC=0x00b0 DUR=0x013a A1=00:1d:0f:61:91:38 A2=00:11:50:26:7d:57 A3=00:1d:0f:61:91:38 agnx: skb len is 30 agnx: TX_PACKET: b0 00 3a 01 00 1d 0f 61 91 38 00 11 50 26 7d 57 ..:....a.8..P&}W agnx: TX_PACKET: 00 1d 0f 61 91 38 b0 00 00 00 01 00 00 00 ...a.8........ agnx: RX MGMT SubType: AUTH FC=0x08b0 DUR=0x013a A1=00:11:50:26:7d:57 A2=00:1d:0f:61:91:38 A3=00:1d:0f:61:91:38 wlan0: RX authentication from 00:1d:0f:61:91:38 (alg=0 transaction=2 status=0) wlan0: authenticated wlan0: associate with AP 00:1d:0f:61:91:38 phy5: TX to low-level driver (len=52) FC=0x0000 DUR=0x013a A1=00:1d:0f:61:91:38 A2=00:11:50:26:7d:57 A3=00:1d:0f:61:91:38 agnx: skb len is 52 agnx: TX_PACKET: 00 00 3a 01 00 1d 0f 61 91 38 00 11 50 26 7d 57 ..:....a.8..P&}W agnx: TX_PACKET: 00 1d 0f 61 91 38 c0 00 21 04 01 00 00 07 54 50 ...a.8..!.....TP agnx: TX_PACKET: 2d 4c 49 4e 4b 01 08 02 04 0b 16 0c 12 18 24 32 -LINK.........$2 agnx: TX_PACKET: 03 48 60 6c .H`l agnx: Interrupt reason is 0x802 agnx: RX MGMT SubType: ASSOC_RESP FC=0x0010 DUR=0x013a A1=00:11:50:26:7d:57 A2=00:1d:0f:61:91:38 A3=00:1d:0f:61:91:38 wlan0: RX AssocResp from 00:1d:0f:61:91:38 (capab=0x421 status=0 aid=1) wlan0: associated wlan0: switched to short barker preamble (BSSID=00:1d:0f:61:91:38) phy5: Added STA 00:1d:0f:61:91:38 phy5: TX to low-level driver (len=41) FC=0x0040 DUR=0x00da A1=00:1d:0f:61:91:38 A2=00:11:50:26:7d:57 A3=00:1d:0f:61:91:38 agnx: skb len is 41 agnx: TX_PACKET: 40 00 da 00 00 1d 0f 61 91 38 00 11 50 26 7d 57 @......a.8..P&}W agnx: TX_PACKET: 00 1d 0f 61 91 38 d0 00 00 00 01 08 02 04 0b 16 ...a.8.......... agnx: TX_PACKET: 0c 12 18 24 32 03 48 60 6c ...$2.H`l agnx: Interrupt reason is 0x802 agnx: RX MGMT FC=0x0050 DUR=0x013a A1=00:11:50:26:7d:57 A2=00:1d:0f:61:91:38 A3=00:1d:0f:61:91:38 wlan0: disassociate(reason=3) phy5: TX to low-level driver (len=26) FC=0x00a0 DUR=0x00da A1=00:1d:0f:61:91:38 A2=00:11:50:26:7d:57 A3=00:1d:0f:61:91:38 agnx: skb len is 26 agnx: TX_PACKET: a0 00 da 00 00 1d 0f 61 91 38 00 11 50 26 7d 57 .......a.8..P&}W agnx: TX_PACKET: 00 1d 0f 61 91 38 e0 00 03 00 ...a.8.... Best Regards Far -- 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