Me estoy encontrando que en el kernel no viene por defecto activado ‘ cfg80211 wireless extensions compatibility ‘ con lo que al arrancar con un nuevo kernel, os detectará la tarjeta wireless pero si ejecutais ‘iwconfig‘ os aparecen todos los interfaces como ‘no wireless extension‘.
Para ello teneis que activarlo , volver a compilar el kernel, instalarlo y reiniciar :
[*] Networking support —>
— Networking support
Networking options —>
[ ] Amateur Radio support —>
< > CAN bus subsystem support —>
< > IrDA (infrared) subsystem support —>
< > Bluetooth subsystem support —>
< > RxRPC session sockets
-*- Wireless —>
— Wireless
<M> cfg80211 – wireless configuration API
[ ] nl80211 testmode command
[ ] enable developer warnings
[ ] cfg80211 regulatory debugging
[ ] enable powersave by default
[ ] cfg80211 DebugFS entries
[*] cfg80211 wireless extensions compatibility
<M> Common routines for IEEE802.11 drivers
[ ] lib80211 debugging messages
<M> Generic IEEE 802.11 Networking Stack (mac80211)
Default rate control algorithm (Minstrel) —>
[ ] Enable mac80211 mesh networking (pre-802.11s) support
[ ] Export mac80211 internals in DebugFS
[ ] Trace all mac80211 debug messages
[ ] Select mac80211 debugging features —>
< > WiMAX Wireless Broadband support —>
<*> RF switch subsystem support —>
< > Plan 9 Resource Sharing Support (9P2000) —>
< > CAIF support —>
< > Ceph core library (EXPERIMENTAL)
< > NFC subsystem support (EXPERIMENTAL) —>
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