/dev/rfkill not found

[makoto]

I have an rtl8192cu wireless card which use mac80211 driver, it works fine with my pi. When I want use it in AP mode by hostapd, it gives the error message:

Code: [Select]

rfkill: Cannot open RFKILL control device
nl80211 driver initialization failedI noticed that /dev/rfkill exist in my laptop but not in pi. Is this the reason? And is it a kernel issue?

[bmarkus]

Kernel. Will be added to next release.