在hostapd配置中启用n模式。

i need to enable n mode of wifi (bgn). i know the wifi configuration is specified in hostapd. but i couldn't find anywhere how to enable 'only n mode' in hostapd. i am using the wl1273l chip , which is capable of bgna. Is there any lines that i need to specify in the hostapd ?.i tried the following i need to enable n mode of wifi (bgn). i know t