[yocto] [meta-raspberrypi] rpi0-w wifi&bluetooth problem

[김재환]

Hi.
 
i build core-image-minimal for rpi0-w.
it works nicely but not working wlan0 and bluetooth.
 
so i tried this post. but still not working.
 
the error was 
$ifup wlan0
Successfully initialized wpa_supplicant
rfkill: cannot get wiphy information
Could not read interface wlan0 flags: No such device
WEXT: could not set interface 'wlan0' UP
wlan0: Failed to initialize driver interface
ifconfig: SIOCGIFFLAGS No such device
 
anybody solve this problem? 
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