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Novice
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RTL8192CU Wireless Driver

Does anyone use RTL8192CU USB WIFI adapter on Galileo board?

I built an image adding RTL kernel modules. My system detects RTL8192CU. But it doesn't work.

'ifconfig' doesn't show WLAN setting.

'lsusb' returns:

Bus 002 Device 002: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n W

LAN Adapter

'iwconfig' returns:

wlan0 IEEE 802.11bgn ESSID:off/any

Mode:Managed Access Point: Not-Associated Tx-Power=off

Retry long limit:7 RTS thr=2347 B Fragment thr:off

Encryption key:off

Power Management:off

'lsmod' returns:

rtl8192cu 92520 0

rtlwifi 98674 1 rtl8192cu

rtl8192c_common 62239 1 rtl8192cu

mac80211 234024 3 rtlwifi,rtl8192c_common,rtl8192cu

cfg80211 171950 3 iwlwifi,mac80211,rtlwifi

gpio_sch 12983 2

rfkill 20724 2 cfg80211

intel_cln_gip 20101 4

uio 14412 1 intel_cln_gip

spi_pxa2xx_pci 13049 1 spi_pxa2xx

evdev 17378 0

mmc_block 26513 2

ehci_pci 12656 0

ehci_hcd 40376 1 ehci_pci

ohci_hcd 26434 0

sdhci_pci 18191 0

sdhci 27440 1 sdhci_pci

led_class 13282 1 sdhci

stmmac 48422 0

usbcore 140133 6 rtlwifi,usbserial,ohci_hcd,ehci_hcd,ehci_pci,rtl8192cu

Any comment or advice will be appreciated.

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5 Replies
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New Contributor II
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Re: RTL8192CU Wireless Driver

What do you mean with "It doesn't work?" - According to your informations, it is not connect to a network. Did you configure the Galileo to access your Wlan network?

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Novice
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Re: RTL8192CU Wireless Driver

Yes I actually configured wlan0 interface in /etc/network/interfaces as below because it didn't show up automatically.

Device doesn't get an IP address assigned with the setting.

Thank you.

auto wlan0

iface wlan0 inet dhcp

wpa-proto RSN

wpa-ssid CISCO-N

wpa-key-mgmt WPA-PSK

wpa-group TKIP CCMP

wpa-pairwise TKIP CCMP

wpa-psk 0d1c3a2cb2ba0ca28b5f49a4af5514c666725ce30a35fc2eb2b3a1c8a803cf7f

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New Contributor II
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Re: RTL8192CU Wireless Driver

My config looks like this:

/etc/network/interfaces

auto wlan0

iface wlan0 inet dhcp

wireless_mode managed

wireless_essid

wpa-driver wext

wpa-conf /etc/wpa_supplicant.conf

/etc/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant

ctrl_interface_group=0

update_config=1

network={

ssid=""

psk=

}

Does "ifup wlan0" show any messages?

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Novice
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Re: RTL8192CU Wireless Driver

"ifup wlan0" returns:

"SIOCSIFFLAGS: Operation not possible due to RF-kill"

"rfkill list all" returns:

0: phy0: wlan

Soft blocked: yes

Hard blocked: no

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New Contributor II
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Re: RTL8192CU Wireless Driver

The internet seems to be familiar with this problem:

https://www.google.de/search?q=SIOCSIFFLAGS:+Operation+not+possible+due+to+RF-kill&ie=utf-8&oe=utf-8... q=RTL8192CU+SIOCSIFFLAGS:+Operation+not+possible+due+to+RF-kill&rls=org.mozilla:de:official&safe=off&start=0 https://www.google.de/search?q=SIOCSIFFLAGS:+Operation+not+possible+due+to+RF-kill&ie=utf-8&oe=utf-8... q=RTL8192CU+SIOCSIFFLAGS:+Operation+not+possible+due+to+RF-kill&rls=org.mozilla:de:official&safe=off&start=0

Try:

rfkill unblock wifi

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