[I have try several USB and PCI cards but no one works. I have use EDUP EP-N8531 RT5370|rt2800usb and TP-LINK TL-WN722N v2. There are any further documentation in order to configure those cards? I am using UBUNTU 16.4 and Debian 9.4, but I have always the same problem: the cards don’t work with ap master mode. ]
Thank you for your answer.
I have overtaken the last problem, but I cannot do the same with the next steps:
I have already managed to install the EDUP card and run the AP mode using hostapd. But now when I boot sphynx the driver crashes and disappears from the device list (iwconfig). How should hostapd be configured for this to work?