Hi Jay,
I bought a Wi-Fi USB dongle, EDIMAX EW-7811Un, which chip is rtl8188cu and the driver is compatible with rtl8192cu. I found there is rtl8192cu driver in Legato-Dist-Source-mdm9x15-SWI9X15Y_07.11.09.00.
I create rtl8192cu.cfg in meta-swi/meta-swi-mdm9x15/recipes-kernel/linux/files/ as the following
CONFIG_AVERAGE=y
Generic 802.11 Support:
CONFIG_CFG80211=m
CONFIG_CFG80211_DEFAULT_PS=y
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_MINSTREL_HT=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT=“minstrel_ht”
CONFIG_CFG80211_WEXT=y
USB 802.11 Devices:
CONFIG_RTL8192CE=m
CONFIG_RTL8192CU=m
CONFIG_RTLWIFI=m
CONFIG_RTLWIFI_DEBUG=y
CONFIG_RTL8192C_COMMON=m
Rfkill support (used by wireless/bluetooth devices)
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
Add cpu temperature support (Not related to 802.11, but a nice thing to have)
CONFIG_SENSORS_CORETEMP=m
Edit meta-swi/meta-swi-mdm9x15/recipes-kernel/linux/linux-yocto_3.14.bbappend
SRC_URI += “file://rtl8192cu.cfg”
After make yocto, I got rtlwifi.ko, rtl_usb.ko, rtl8192cu.ko, and rtl8192c-common.ko, but without RTL8192CE.ko, why?
When I modpobe rtl8192cu, I got the error message.
modprobe: can’t load module rtl_usb (kernel/drivers/net/wireless/rtlwifi/rtl_usb.ko): unknown symbol in module, or unknown parameter
dmesg log is
[ 19.357942] mbim_read: Requests list is empty. Wait.
[ 129.082923] Loading modules backported from Linux version R8.5
[ 129.095070] Backport generated by backports.git R8.5
[ 129.235373] cfg80211: Calling CRDA to update world regulatory domain
[ 129.485121] rtlwifi: Unable to register rtl_rc, use default RC !!
[ 129.491622] rtl_usb: Unknown symbol ieee80211_rx (err 0)
Can I modify the configuration file in arch/arm/configs/ ?
If so, which configuration do I need to modify?
Thank you very much!