RTL8733BS SDIO Wifi driver issue

For Developers
1

Hi everyone,

I'm working on camera device based on mips CPU with OpenWrt 19.07.10.
We porting rtl8733bs driver to OpenWrt with following compile options.

export KBUILD_EXTRA_SYMBOLS:="${STAGING_DIR}/pkginfo/mac80211.symvers" 
export NOSTDINC_FLAGS:= \
      -I$(PKG_BUILD_DIR) \
      -I$(PKG_BUILD_DIR)/include \
      -I$(STAGING_DIR)/usr/include/mac80211-backport \
      -I$(STAGING_DIR)/usr/include/mac80211-backport/uapi \
      -I$(STAGING_DIR)/usr/include/mac80211 \
      -I$(STAGING_DIR)/usr/include/mac80211/uapi \
      -include backport/backport.h

During compile part, anything is good.
When I try to insert driver, the wifi driver can not find the phy0 device, log is

[   13.512493] RTW: rtw_wiphy_alloc((null))
[   13.516493] RTW: rtw_wdev_alloc(padapter=48c27f5f)
[   13.521337] RTW: rtw_wiphy_register((null))
[   13.525575] RTW: Register RTW cfg80211 vendor cmd(0x67) interface
[   13.531742] RTW: rtw_wiphy_register((null)) wiphy_register() return -22
[   13.538390] RTW: rtw_wdev_free(wdev=fc4ca593)
[   13.542827] RTW: rtw_wiphy_free((null))
[   13.546698] RTW: rtw_dev_unload: bup==_FALSE
[   13.550992] RTW: +r871xu_dev_remove, hw_init_completed=0

Following log is working wifi device.

RTW: rtw_wiphy_alloc(phy0)
RTW: rtw_wdev_alloc(padapter=a6ded5d8)
RTW: rtw_wiphy_register(phy0)
RTW: Register RTW cfg80211 vendor cmd(0x67) interface
RTW: rtw_ndev_init(wlan0) if1 mac_addr=34:7d:e4:7f:60:5e
RTW: rtw_ndev_notifier_call(wlan0) state:17
RTW: cfg80211_rtw_get_txpower(wlan0) total max: -10000 mbm
RTW: rtw_ndev_notifier_call(wlan0) state:5
RTW: module init ret=0

Any suggestions to fix this issue? Thanks.

2

Start by updating your code base to a current, supported version of openwrt
19.07 is end of life

1 Like
3

@jdwl1o1

Thanks. But the kernel version is 4.7 which device supported. So, we have to work on 19.07.

4

then you're mostly on your own ...

2 Likes
5

@frollic

We porting SDK to OpenWRT 22.03.5 successfully. Any suggestions to debug this issue? Thanks.