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RTL8192cu in yocto built linux

Question asked by Jaffin MK on Oct 31, 2016
Latest reply on Nov 2, 2016 by Jaffin MK

Hello all

 

I am having some trouble porting rtl8192cu to imx6 qp sabre board running linux kernel 4.1.15 (yocto build krogoth). I actually customised the kernel and included the wifi driver rtl8192cu.ko. And when I connect the wifi usb module to the boardthe module picks it up too. But after loading the firmware it tries to register some other sound driver everytime which returns an error and thats it. Wifi still doesnt work no wlan0 interface. Please advise what I might be missing. Heres the dmesg output from I tried to connect the wifi usb dongle.

 

[ 2380.584220] usb 2-1: new high-speed USB device number 4 using ci_hdrc
[ 2380.737257] rtl8192cu: Chip version 0x10
[ 2380.827481] rtl8192cu: MAC address: 00:17:7c:22:88:18
[ 2380.831258] rtl8192cu: Board Type 0
[ 2380.833714] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[ 2380.838726] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[ 2380.845476] ieee80211 phy2: Selected rate control algorithm 'rtl_rc'
[ 2380.849447] imx-wm8962 sound: ASoC: CPU DAI (null) not registered
[ 2380.854354] imx-wm8962 sound: snd_soc_register_card failed (-517)
[ 2380.860584] imx-wm8962 sound: ASoC: CPU DAI (null) not registered
[ 2380.865461] imx-wm8962 sound: snd_soc_register_card failed (-517)
[ 2551.131336] usb 2-1: USB disconnect, device number 4
[ 2553.964217] usb 2-1: new high-speed USB device number 5 using ci_hdrc
[ 2554.117141] rtl8192cu: Chip version 0x10
[ 2554.204014] rtl8192cu: MAC address: 00:17:7c:22:88:18
[ 2554.207811] rtl8192cu: Board Type 0
[ 2554.210248] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[ 2554.215267] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[ 2554.222002] ieee80211 phy3: Selected rate control algorithm 'rtl_rc'
[ 2554.225764] imx-wm8962 sound: ASoC: CPU DAI (null) not registered
[ 2554.230609] imx-wm8962 sound: snd_soc_register_card failed (-517)
[ 2554.236817] imx-wm8962 sound: ASoC: CPU DAI (null) not registered
[ 2554.241674] imx-wm8962 sound: snd_soc_register_card failed (-517)
[ 5397.009146] cfg80211: no symbol version for module_layout
[13082.303739] usb 2-1: USB disconnect, device number 5
[13084.464220] usb 2-1: new high-speed USB device number 6 using ci_hdrc
[13084.617174] rtl8192cu: Chip version 0x10
[13084.703550] rtl8192cu: MAC address: 00:17:7c:22:88:18
[13084.707348] rtl8192cu: Board Type 0
[13084.709782] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[13084.714785] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[13084.721490] ieee80211 phy4: Selected rate control algorithm 'rtl_rc'
[13084.725300] imx-wm8962 sound: ASoC: CPU DAI (null) not registered
[13084.730144] imx-wm8962 sound: snd_soc_register_card failed (-517)
[13084.736349] imx-wm8962 sound: ASoC: CPU DAI (null) not registered
[13084.743953] imx-wm8962 sound: snd_soc_register_card failed (-517)

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