Wireless dongle

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mahmood
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Wireless dongle

Postby mahmood » 2018/03/15 06:57:05

It seems that the default kernel 3.10 of Centos 7 is unable to detect a wireless usb dongle. I have a Dlink DWA-123 [1] which is fine with ubuntu (kernel 4.10). But centos doesn't detect that.

[1] http://www.dlinkla.com/dwa-123

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TrevorH
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Re: Wireless dongle

Postby TrevorH » 2018/03/15 07:21:12

Post the output from the lsusb command
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mahmood
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Re: Wireless dongle

Postby mahmood » 2018/03/15 11:43:30

Please see the output

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Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 003: ID 2001:3310 D-Link Corp.
Bus 005 Device 005: ID 0b38:0003 Gear Head Keyboard
Bus 005 Device 004: ID 09da:c10a A4Tech Co., Ltd.
Bus 005 Device 002: ID 8054:0001 
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

mahmood
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Re: Wireless dongle

Postby mahmood » 2018/03/15 15:38:04

I followed a similar thread [1] and did the following steps:
1- Install elrepo kernel-4.15
2- modprobe rt2800usb

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$ lsmod | grep rt2800
rt2800usb              32768  0
rt2x00usb              20480  1 rt2800usb
rt2800lib             102400  1 rt2800usb
rt2x00lib              53248  3 rt2800lib,rt2800usb,rt2x00usb
mac80211              753664  3 rt2800lib,rt2x00lib,rt2x00usb


3- While running "tail -f /var/log/message", I see the following output

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Mar 15 19:01:34 orca kernel: usb 5-3: new high-speed USB device number 7 using xhci_hcd
Mar 15 19:01:34 orca kernel: usb 5-3: New USB device found, idVendor=2001, idProduct=3310
Mar 15 19:01:34 orca kernel: usb 5-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 15 19:01:34 orca kernel: usb 5-3: Product: DWA-123 11n Adapter
Mar 15 19:01:34 orca kernel: usb 5-3: Manufacturer: Realtek#015
Mar 15 19:01:34 orca kernel: usb 5-3: SerialNumber: 1062EB309C34
Mar 15 19:01:34 orca kernel: Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
Mar 15 19:01:34 orca NetworkManager[946]: <warn>  [1521127894.5750] (wlan0) failed to initialize Wi-Fi driver for ifindex 6
Mar 15 19:01:34 orca NetworkManager[946]: <warn>  [1521127894.5751] manager: wlan0: factory failed to create device: Device factory NMWifiFactory failed to create device wlan0
Mar 15 19:01:34 orca mtp-probe: checking bus 5, device 7: "/sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3"
Mar 15 19:01:34 orca mtp-probe: bus: 5, device: 7 was not an MTP device
Mar 15 19:01:35 orca kernel: r8188eu 5-3:1.0 wlp36s0f3u3: renamed from wlan0
Mar 15 19:01:35 orca journal: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3/5-3:1.0
Mar 15 19:01:35 orca journal: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3
Mar 15 19:01:38 orca ModemManager[894]: <info>  Couldn't check support for device at '/sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3': not supported by any plugin


The blue led of the adapter is still off. That should be blinking.

Any idea? It seems that the device is still undetected.


[1] viewtopic.php?t=7283

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toracat
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Re: Wireless dongle

Postby toracat » 2018/03/16 05:38:58

The output from lsusb shows the device ID pairing is [2001:3310]. This device is supposed to be supported by the r8188eu kernel driver which is included in ELRepo's kernel-ml 4.15. Try 'modprobe r8188eu' to load it.

[EDIT] Or you can use kernel-lt (currently at 4.4.x) which may be a better choice.
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mahmood
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Re: Wireless dongle

Postby mahmood » 2018/03/16 09:05:28

I tired that but still doesn't work.
Since the computer has no internet connection, I manually installed the following rpms

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kernel-ml-4.15.1-1.el7.elrepo.x86_64.rpm
kernel-ml-devel-4.15.1-1.el7.elrepo.x86_64.rpm

Then I rebooted the machine to load the new kernel. As you can see there is no 8188 module

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[mahmood@orca ~]$ uname -a
Linux orca 4.15.1-1.el7.elrepo.x86_64 #1 SMP Sat Feb 3 22:01:16 EST 2018 x86_64 x86_64 x86_64 GNU/Linux
[mahmood@orca ~]$ lsmod | grep 8188
[mahmood@orca ~]$

By running tail -f /var/log/messages in another terminal, I plugged the usb dongle and here is the output

Code: Select all

Mar 16 12:27:45 orca kernel: usb 5-3: new high-speed USB device number 6 using xhci_hcd
Mar 16 12:27:45 orca kernel: usb 5-3: New USB device found, idVendor=2001, idProduct=3310
Mar 16 12:27:45 orca kernel: usb 5-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 16 12:27:45 orca kernel: usb 5-3: Product: DWA-123 11n Adapter
Mar 16 12:27:45 orca kernel: usb 5-3: Manufacturer: Realtek#015
Mar 16 12:27:45 orca kernel: usb 5-3: SerialNumber: 1062EB309C34
Mar 16 12:27:45 orca mtp-probe: checking bus 5, device 6: "/sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3"
Mar 16 12:27:45 orca mtp-probe: bus: 5, device: 6 was not an MTP device
Mar 16 12:27:46 orca journal: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3
Mar 16 12:27:57 orca journal: No devices in use, exit


Also, please see the lsmod output. Still there is no 8188eu

Code: Select all

[mahmood@orca ~]$ lsmod
Module                  Size  Used by
fuse                  102400  3
xt_CHECKSUM            16384  1
ipt_MASQUERADE         16384  3
nf_nat_masquerade_ipv4    16384  1 ipt_MASQUERADE
tun                    36864  1
ip6t_rpfilter          16384  1
ipt_REJECT             16384  4
nf_reject_ipv4         16384  1 ipt_REJECT
ip6t_REJECT            16384  2
nf_reject_ipv6         16384  1 ip6t_REJECT
xt_conntrack           16384  12
ip_set                 40960  0
nfnetlink              16384  1 ip_set
ebtable_nat            16384  1
ebtable_broute         16384  1
ip6table_nat           16384  1
nf_conntrack_ipv6      20480  7
nf_defrag_ipv6         36864  1 nf_conntrack_ipv6
nf_nat_ipv6            16384  1 ip6table_nat
ip6table_mangle        16384  1
ip6table_security      16384  1
ip6table_raw           16384  1
iptable_nat            16384  1
nf_conntrack_ipv4      16384  10
nf_defrag_ipv4         16384  1 nf_conntrack_ipv4
nf_nat_ipv4            16384  1 iptable_nat
nf_nat                 32768  3 nf_nat_ipv6,nf_nat_masquerade_ipv4,nf_nat_ipv4
nf_conntrack          135168  8 nf_conntrack_ipv6,nf_conntrack_ipv4,ipt_MASQUERADE,nf_nat_ipv6,nf_nat_masquerade_ipv4,xt_conntrack,nf_nat_ipv4,nf_nat
libcrc32c              16384  2 nf_conntrack,nf_nat
iptable_mangle         16384  1
iptable_security       16384  1
iptable_raw            16384  1
ebtable_filter         16384  1
ebtables               32768  3 ebtable_filter,ebtable_nat,ebtable_broute
ip6table_filter        16384  1
ip6_tables             28672  5 ip6table_mangle,ip6table_filter,ip6table_security,ip6table_raw,ip6table_nat
iptable_filter         16384  1
vfat                   20480  2
fat                    65536  1 vfat
dm_mirror              24576  0
dm_region_hash         20480  1 dm_mirror
dm_log                 20480  2 dm_mirror,dm_region_hash
dm_mod                118784  2 dm_mirror,dm_log
dax                    69632  1 dm_mod
snd_hda_codec_hdmi     49152  1
edac_mce_amd           28672  0
kvm                   593920  0
irqbypass              16384  1 kvm
crct10dif_pclmul       16384  0
crc32_pclmul           16384  0
ghash_clmulni_intel    16384  0
pcbc                   16384  0
snd_hda_codec_realtek    94208  1
snd_hda_codec_generic    69632  1 snd_hda_codec_realtek
ppdev                  20480  0
snd_hda_intel          40960  6
joydev                 20480  0
snd_hda_codec         126976  4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
input_leds             16384  0
aesni_intel           188416  0
crypto_simd            16384  1 aesni_intel
snd_hda_core           81920  5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
glue_helper            16384  1 aesni_intel
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel,aesni_intel
snd_hwdep              16384  1 snd_hda_codec
snd_seq                65536  0
snd_seq_device         16384  1 snd_seq
snd_pcm                94208  4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi
sp5100_tco             16384  0
snd_timer              32768  2 snd_seq,snd_pcm
snd                    77824  22 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_realtek,snd_pcm
wmi_bmof               16384  0
parport_pc             28672  0
pcspkr                 16384  0
i2c_piix4              24576  0
k10temp                16384  0
soundcore              16384  1 snd
ccp                    69632  0
sg                     40960  0
parport                49152  2 parport_pc,ppdev
gpio_amdpt             16384  0
shpchp                 36864  0
gpio_generic           20480  1 gpio_amdpt
pinctrl_amd            24576  0
acpi_cpufreq           20480  0
nfsd                  315392  1
auth_rpcgss            61440  1 nfsd
nfs_acl                16384  1 nfsd
lockd                  94208  1 nfsd
grace                  16384  2 nfsd,lockd
sunrpc                339968  7 auth_rpcgss,nfsd,nfs_acl,lockd
ip_tables              24576  5 iptable_mangle,iptable_filter,iptable_raw,iptable_nat,iptable_security
ext4                  614400  4
mbcache                16384  1 ext4
jbd2                  102400  1 ext4
sd_mod                 49152  6
uas                    24576  0
usb_storage            69632  2 uas
nouveau              1695744  12
crc32c_intel           24576  1
video                  40960  1 nouveau
mxm_wmi                16384  1 nouveau
i2c_algo_bit           16384  1 nouveau
drm_kms_helper        163840  1 nouveau
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
ttm                   102400  1 nouveau
drm                   393216  7 nouveau,ttm,drm_kms_helper
ahci                   36864  3
libahci                32768  1 ahci
r8169                  81920  0
mii                    16384  1 r8169
libata                241664  2 ahci,libahci
wmi                    24576  3 wmi_bmof,mxm_wmi,nouveau
[mahmood@orca ~]$

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toracat
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Re: Wireless dongle

Postby toracat » 2018/03/16 15:29:42

Did you run 'modprobe r8188eu' ? Did it not load the module?
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TrevorH
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Re: Wireless dongle

Postby TrevorH » 2018/03/16 15:40:46

And if it didn't, what's in /var/log/messages afterwards.
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mahmood
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Re: Wireless dongle

Postby mahmood » 2018/03/17 09:37:36

With the very latest elrepo kernel 4.15.10 which has been released 2 days ago, I did the procedure again.
1- Unplug the dongle and boot centos
2- Plug the dongle and check if the module has been loaded -> yes

Code: Select all

Bus 005 Device 006: ID 2001:3310 D-Link Corp.
[mahmood@orca ~]$ grep -i 2001 /lib/modules/$(uname -r)/modules.alias | grep -i 3310
alias usb:v2001p3310d*dc*dsc*dp*ic*isc*ip*in* r8188eu
[mahmood@orca ~]$ uname -r
4.15.10-1.el7.elrepo.x86_64
[mahmood@orca ~]$ lsmod | head
Module                  Size  Used by
r8188eu               421888  0
cfg80211              618496  1 r8188eu
rfkill                 28672  1 cfg80211
fuse                  102400  3
xt_CHECKSUM            16384  1
ipt_MASQUERADE         16384  3
nf_nat_masquerade_ipv4    16384  1 ipt_MASQUERADE
tun                    36864  1
ip6t_rpfilter          16384  1


The /var/log/messages also shows that the kernel module has been loaded

Code: Select all

Mar 17 12:49:18 orca kernel: usb 5-3: new high-speed USB device number 6 using xhci_hcd
Mar 17 12:49:18 orca kernel: usb 5-3: New USB device found, idVendor=2001, idProduct=3310
Mar 17 12:49:18 orca kernel: usb 5-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 17 12:49:18 orca kernel: usb 5-3: Product: DWA-123 11n Adapter
Mar 17 12:49:18 orca kernel: usb 5-3: Manufacturer: Realtek#015
Mar 17 12:49:18 orca kernel: usb 5-3: SerialNumber: 1062EB309C34
Mar 17 12:49:18 orca mtp-probe: checking bus 5, device 6: "/sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3"
Mar 17 12:49:18 orca mtp-probe: bus: 5, device: 6 was not an MTP device
Mar 17 12:49:19 orca kernel: cfg80211: Loading compiled-in X.509 certificates for regulatory database
Mar 17 12:49:19 orca kernel: cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
Mar 17 12:49:19 orca kernel: platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
Mar 17 12:49:19 orca kernel: cfg80211: failed to load regulatory.db
Mar 17 12:49:19 orca kernel: r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
Mar 17 12:49:19 orca kernel: Chip Version Info: CHIP_8188E_Normal_Chip_TSMC_D_CUT_1T1R_RomVer(0)
Mar 17 12:49:19 orca kernel: usbcore: registered new interface driver r8188eu
Mar 17 12:49:19 orca NetworkManager[932]: <warn>  [1521278359.4820] (wlan0) failed to initialize Wi-Fi driver for ifindex 5
Mar 17 12:49:19 orca NetworkManager[932]: <warn>  [1521278359.4822] manager: wlan0: factory failed to create device: Device factory NMWifiFactory failed to create device wlan0
Mar 17 12:49:19 orca journal: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3
Mar 17 12:49:19 orca kernel: r8188eu 5-3:1.0 wlp36s0f3u3: renamed from wlan0
Mar 17 12:49:19 orca journal: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3/5-3:1.0
Mar 17 12:49:22 orca ModemManager[874]: <info>  Couldn't check support for device at '/sys/devices/pci0000:00/0000:00:07.1/0000:24:00.3/usb5/5-3': not supported by any plugin



I think the problem is with the network manager which is not able to setup a wireless connection. According to a blog [1], I have to run wpa_supplicant. However, for me, it returns an error which is not clear what is the problem exactly.

Code: Select all

[mahmood@orca ~]$ ifconfig -a | grep -A 5 wl
wlp36s0f3u3: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 10:62:eb:30:9c:34  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
[mahmood@orca ~]$ sudo wpa_supplicant -i wlp36s0f3u3 -c /etc/wpa_supplicant/wpa_supplicant.conf -B
Successfully initialized wpa_supplicant
nl80211: Driver does not support authentication/association or connect commands
nl80211: deinit ifname=wlp36s0f3u3 disabled_11b_rates=0
wlp36s0f3u3: Failed to initialize driver interface
[mahmood@orca ~]$



[1] http://soft29.info/blog/entry/centos-7-usb-wifi-8188eu

George99
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Re: Wireless dongle

Postby George99 » 2018/03/17 12:14:52

If you can't fix it one way or another there is still an alternative: WIFI-dongles with RTL8192cu work fine even with the original CentOS 3.10 kernel out of the box and cost no more than 10 EUR/USD.
Easy configurarion: Settings -> Network -> Wi-Fi