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About wireless adapters

Your wireless adapter and your kernel driver must support AP mode. In order to check this, execute this shell command: 
 iw list
If there is ‘AP’ in the list of “Supported interface modes”, your card has support for the desired mode.

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Another method:

  • Find your kernel driver module in use by issuing the below command:
 lspci -k | grep -A 3 -i network
(example module: ath9k) next, use the below command to find out your wifi capabilities (replace ath9k by your kernel driver): 
modinfo ath9k | grep depend
If the above output includes “mac80211” then it means your wifi card will support the AP mode. The adapter needs to have drivers for GNU/Linux.