I'm using builtin WIFI adapter 802.11n Wireless LAN.
ifup wlan0
shows:
wpa_supplicant: /sbin/wpa_supplicant daemon failed to start
run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with return code 1
Failed to bring up wlan0.
I tried to update, upgrade, rpi-update, it hasn't helped, but now rpi is updated to the latest firmware.
Linux raspberrypi 4.9.13-v7+ #972 SMP Sun Feb 26 20:27:50 GMT 2017 armv7l GNU/Linux
lsusb
shows:
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lsmod
shows:
Module Size Used by
bnep 12051 2
hci_uart 19956 1
btbcm 7916 1 hci_uart
bluetooth 365511 22 hci_uart,bnep,btbcm
brcmfmac 222720 0
brcmutil 9092 1 brcmfmac
cfg80211 542899 1 brcmfmac
rfkill 20851 3 bluetooth,cfg80211
snd_bcm2835 24427 0
snd_pcm 97226 1 snd_bcm2835
snd_timer 23840 1 snd_pcm
snd 70032 3 snd_timer,snd_bcm2835,snd_pcm
bcm2835_gpiomem 3940 0
w1_gpio 4818 0
wire 32581 1 w1_gpio
cn 5889 1 wire
uio_pdrv_genirq 3923 0
uio 10204 1 uio_pdrv_genirq
fixed 3285 0
ipv6 406215 22
rpi-update
? – Milliways Feb 27 '17 at 8:44ip link show
? Does it show the device wlan0 ? If not, then how is wlan0 defined in /etc/network/interfaces ? – Anonymous Aug 18 '17 at 14:45