Issue on Realtek RTL8188CUS chipset - Raspberry Pi

Issue :

#sudo hostapd /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
nl80211: 'nl80211' generic netlink not found
Failed to initialize driver 'nl80211'
rmdir[ctrl_interface]: No such file or directory

Solution :

#lsusb

Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter

#sudo apt-get autoremove hostapd

#wget https://github.com/segersjens/RTL8188-hostapd/archive/v1.0.tar.gz

#tar -zxvf v1.0.tar.gz

#cd RTL8188-hostapd-1.0/hostapd

#sudo make

CC main.c
CC config_file.c
CC ../src/ap/hostapd.c
../src/ap/wpa_auth_glue.c: In function 'hostapd_wpa_auth_send_ether':
../src/ap/wpa_auth_glue.c:351:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
CC ../src/ap/wpa_auth_glue.c
....

#sudo make install
mkdir -p /usr/local/bin
for i in hostapd hostapd_cli; do cp -f $i /usr/local/bin/$i; done
cp -f ../scripts/init /etc/init.d/hostapd
chmod +x /etc/init.d/hostapd
mkdir -p /etc/hostapd
cp -f ../scripts/hostapd.conf /etc/hostapd/

#sudo service hostapd restart
[ ok ] Stopping advanced IEEE 802.11 management: hostapd.
[ ok ] Starting advanced IEEE 802.11 management: hostapd.

#iwconfig


wlan0 IEEE 802.11bgn ESSID:"wifi" Nickname:"<WIFI@REALTEK>"
Mode:Master Frequency:2.412 GHz Access Point: A0:F3:C1:2A:7D:BE
Bit Rate:65 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

 

Source : http://www.jenssegers.be/