I just check the chip 6205's spec. it said it supports the SoftAP with Mode A, 

but why the AP in mode A can't be used?

Best Regards.
--------------------------------------
Bopeng Liu
WIND RIVER | China Development Center
Phone: 8610-6483-5012



________________________________________
From: Emmanuel Grumbach [egrumbach@gmail.com]
Sent: Thursday, January 23, 2014 5:27 PM
To: Liu, Bopeng
Cc: Krishna Chaitanya; zhuyj; linux-wireless
Subject: Re: 802.11a is supported in AP mode or not?

On Thu, Jan 23, 2014 at 11:21 AM, Liu, Bopeng [off-list ref] wrote:

So,it that mean: there is no way to fix this problem by modify the kernel and driver codes?

Yes

Though #iwconfig wlan0 shows there is modes a ?

In client mode - not in AP mode

iwconfig wlan0
wlan0     IEEE 802.11abgn  ESSID:"IDPDK-169c"
          Mode:Managed  Frequency:2.462 GHz  Access Point: A0:88:B4:1E:16:9C
          Bit Rate=1 Mb/s   Tx-Power=15 dBm
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=60/70  Signal level=-50 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:14   Missed beacon:0