I have a typo in the first section. It should actually be (without the
comments)
allow-hotplug wlan0
auto wlan0
iface wlan0 inet dhcp
wpa-ssid "myESSID"
wpa-psk "myPass"
On Friday, March 15, 2019 at 6:58:39 PM UTC+5:30, agm wrote:
>
> Hi All,
>
> When I was working with 3.X kernel versions, integrating WiFi USB Adapter
> was straightforward. I'm facing issues setting up WiFi with 4.4.54-ti-r93
> I'm trying with Edimax N150 (EW-7811Un).
>
> I started off with something simple -- by connecting the WiFi adapter
> module and adding the following code to
> /etc/network/interfaces
>
> allow-hotplug wlan0
> auto wlan0
> iface wlan0 inet dhcp
> # wpa-ssid "myESSID"
> # wpa-psk "myPass"
>
>
> I tried to restart and this did not work. I see the below when I do
> *iwconfig*
>
>
> wlan0 IEEE 802.11bgn ESSID:off/any
> Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
> Retry short limit:7 RTS thr=2347 B Fragment thr:off
> Power Management:off
>
> and the following when I do *ifconfig*
>
> wlan0 Link encap:Ethernet HWaddr 74:da:38:8d:1c:54
> UP BROADCAST MULTICAST DYNAMIC MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:1000
> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
>
>
> Here is the *dmesg* output
>
> [ 16.810320] LUN: removable file: (no medium)
> [ 17.026254] usb0: HOST MAC 88:c2:55:83:f9:50
> [ 17.027770] usb0: MAC 88:c2:55:83:f9:51
> [ 17.039688] usb1: HOST MAC 88:c2:55:83:f9:53
> [ 17.041967] usb1: MAC 88:c2:55:83:f9:54
> [ 17.617982] configfs-gadget gadget: high-speed config #1: c
> [ 19.781294] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full -
> flow control rx/tx
> [ 19.781387] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> [ 19.897785] 8021q: 802.1Q VLAN Support v1.8
> [ 19.897863] 8021q: adding VLAN 0 to HW filter on device eth0
> [ 35.242189] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
> [ 38.011535] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
> [ 38.054682] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
> [ 38.664760] rtl8192cu: Chip version 0x10
> [ 40.929253] rtl8192cu: MAC address: 74:da:38:8d:1c:54
> [ 40.929291] rtl8192cu: Board Type 0
> [ 40.929517] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
> [ 40.929696] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
> [ 41.032215] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
> [ 41.050562] usbcore: registered new interface driver rtl8192cu
> [ 41.053732] rtl8192cu: MAC auto ON okay!
> [ 41.113660] rtl8192cu: Tx queue select: 0x05
> [ 42.497838] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
>
>
> Here is my *lsbusb* output
>
> Bus 001 Device 002: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un
> 802.11n Wireless Adapter [Realtek RTL8188CUS]
>
> Here is* lsmod* output
>
> Module Size Used by
> ft6236 6004 0
> fb_ili9341 3929 2
> fbtft_device 39391 0
> fbtft 37977 2 fb_ili9341,fbtft_device
> arc4 2211 2
> rtl8192cu 64049 0
> rtl_usb 11220 1 rtl8192cu
> rtl8192c_common 47080 1 rtl8192cu
> rtlwifi 68709 3 rtl_usb,rtl8192c_common,rtl8192cu
> omap_sham 26513 0
> omap_aes_driver 23912 0
> mac80211 626271 3 rtl_usb,rtlwifi,rtl8192cu
> omap_rng 5544 0
> rng_core 9066 1 omap_rng
> joydev 10372 0
> spi_omap2_mcspi 12952 0
> evdev 13511 3
> uio_pdrv_genirq 3923 0
> uio 10524 1 uio_pdrv_genirq
> 8021q 23043 0
> garp 7049 1 8021q
> mrp 8967 1 8021q
> stp 2430 1 garp
> llc 5903 2 stp,garp
> usb_f_mass_storage 49849 2
> usb_f_acm 8361 2
> u_serial 13753 3 usb_f_acm
> usb_f_ecm 11064 2
> usb_f_rndis 25865 2
> u_ether 14349 2 usb_f_ecm,usb_f_rndis
> libcomposite 53618 16 usb_f_acm,usb_f_ecm,usb_f_rndis,
> usb_f_mass_storage
> cfg80211 532333 2 mac80211,rtlwifi
> rfkill 21386 4 cfg80211
> spidev 8860 0
> tieqep 9981 0
> pwm_tiehrpwm 5883 0
> pru_rproc 15431 2
> pruss_intc 8603 1 pru_rproc
> pruss 12026 1 pru_rproc
>
>
> Here is the /boot/uEnv.txt
>
>
> #Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0
>
>
> uname_r=4.4.54-ti-r93
> #uuid=
> #dtb=
>
>
> ##BeagleBone Black/Green dtb's for v4.1.x (BeagleBone White just works..)
>
>
> ##BeagleBone Black: HDMI (Audio/Video) disabled:
> dtb=am335x-boneblack-emmc-overlay.dtb
>
>
> ##BeagleBone Black: eMMC disabled:
> #dtb=am335x-boneblack-hdmi-overlay.dtb
>
>
> ##BeagleBone Black: HDMI Audio/eMMC disabled:
> #dtb=am335x-boneblack-nhdmi-overlay.dtb
>
>
> ##BeagleBone Black: HDMI (Audio/Video)/eMMC disabled:
> #dtb=am335x-boneblack-overlay.dtb
>
>
> ##BeagleBone Black: wl1835
> #dtb=am335x-boneblack-wl1835mod.dtb
>
>
> ##BeagleBone Green: eMMC disabled
> #dtb=am335x-bonegreen-overlay.dtb
>
>
> ###U-Boot Overlays###
> ###Documentation:
> http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays
> ###Master Enable
> #enable_uboot_overlays=1
> ###Overide capes with eeprom
> #uboot_overlay_addr0=/lib/firmware/<file0>.dtbo
> #uboot_overlay_addr1=/lib/firmware/<file1>.dtbo
> #uboot_overlay_addr2=/lib/firmware/<file2>.dtbo
> #uboot_overlay_addr3=/lib/firmware/<file3>.dtbo
> ###Custom Cape
> #dtb_overlay=/lib/firmware/<file4>.dtbo
> ###Disable auto loading of virtual capes (emmc/video/wireless)
> #disable_uboot_overlay_emmc=1
> #disable_uboot_overlay_video=1
> #disable_uboot_overlay_audio=1
> #disable_uboot_overlay_wireless=1
> ###Cape Universal Enable
> #enable_uboot_cape_universal=1
> ###U-Boot fdt tweaks...
> #uboot_fdt_buffer=0x60000
> ###U-Boot Overlays###
>
>
> cmdline=coherent_pool=1M net.ifnames=0 quiet cape_universal=enable
>
>
> #In the event of edid real failures, uncomment this next line:
> #cmdline=coherent_pool=1M net.ifnames=0 quiet cape_universal=enable
> video=HDMI-A-1:1024x768@60e
>
>
> ##Example v3.8.x
> #cape_disable=capemgr.disable_partno=
> #cape_enable=capemgr.enable_partno=
>
>
> ##Example v4.1.x
> #cape_disable=bone_capemgr.disable_partno=
> cape_enable=bone_capemgr.enable_partno=BB-SPIDEV0,BB-I2C1-Touch,BB-UART4
> cape_disable=bone_capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN
>
>
> ##enable Generic eMMC Flasher:
> ##make sure, these tools are installed: dosfstools rsync
> ####cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh
>
>
> #uuid=dd4673d1-eeda-4dea-82ea-1a0233046486
> ###cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh
> ##cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh
> #cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh
>
> I tried to do this *wpa_supplicant*
>
> I created a file *wpa_supplicant.conf *in */etc/wpa_supplicant *with the
> following code
>
> ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
> update_config=1
> country=US
>
> Then I executed this command,
> wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
>
> Successfully initialized wpa_supplicant
> nl80211: deinit ifname=wlan0 disabled_11b_rates=0
> wlan0: Failed to initialize driver interface
>
> Then I read that nl80211 might not work with old adapters. So I tried with
> *wext*
>
> wpa_supplicant -B -i wlan0 -D -wext -c /etc/wpa_supplicant/wpa_supplicant.
> conf
>
> I get the following errors
>
>
> ioctl[SIOCSIWENCODEEXT]: Invalid argument
> ioctl[SIOCSIWENCODEEXT]: Invalid argument
> ctrl_iface exists and seems to be in use - cannot override it
> Delete '/run/wpa_supplicant/wlan0' manually if it is not used anymore
> Failed to initialize control interface '/run/wpa_supplicant'.
> You may have another wpa_supplicant process already running or the file
> was
> left by an unclean termination of wpa_supplicant in which case you will
> need
> to manually remove this file before starting wpa_supplicant again.
>
>
> Then I tried to make wpa_supplicant do everything. I modified the*
> /etc/network/interfaces* file as follows
>
>
> auto wlan0
> iface wlan0 inet dhcp
> wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
>
>
>
> My */etc/wpa_supplicant/wpa_supplicant.conf* as follows
>
> ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
> update_config=1
> country=US
>
> network={
> ssid="my_ESSID"
> psk="my_Pass"
> scan_ssid=1
> }
>
> I get the following log when I do *sudo systemctl status
> networking.service*
>
>
> Mar 15 18:53:12 beaglebone wpa_supplicant[844]: Successfully initialized
> wpa_supplicant
> Mar 15 18:53:14 beaglebone wpa_supplicant[844]: Could not read interface
> wlan0 flags: No such device
> Mar 15 18:53:14 beaglebone wpa_supplicant[844]: nl80211: Driver does not
> support authentication/association or connect commands
> Mar 15 18:53:14 beaglebone ifup[667]: /etc/network/if-pre-up.d/
> wpasupplicant: 120: /etc/network/if-pre-up.d/wpasupplicant: cannot cr
> Mar 15 18:53:14 beaglebone ifup[667]: run-parts:
> /etc/network/if-pre-up.d/wpasupplicant
> exited with return code 1
> Mar 15 18:53:14 beaglebone ifup[667]: Failed to bring up wlan0.
> Mar 15 18:53:23 beaglebone systemd[1]: networking.service: Main process
> exited, code=exited, status=1/FAILURE
> Mar 15 18:53:23 beaglebone systemd[1]: Failed to start Raise network
> interfaces.
> Mar 15 18:53:23 beaglebone systemd[1]: networking.service: Unit entered
> failed state.
> Mar 15 18:53:23 beaglebone systemd[1]: networking.service: Failed with
> result 'exit-code'
>
>
> I feel I've run out of options. What else can I do? Am I missing something
> trivial here? I want to avoid kernel upgrade/downgrade.
>
> Thanks for your help.
>
--
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