brcmfmacDmesg

[    7.014827] brcmfmac: brcmf_sdio_drivestrengthinit: No SDIO Drive strength init done for chip 43430 rev 1 pmurev 24
[    7.015926] usbcore: registered new interface driver brcmfmac
[    7.260565] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Dec 15 2015 18:10:45 version 7.45.41.23 (r606571) FWID 01-cc4eda9c
[    7.289748] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code
[    7.472658] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code
[   12.824964] brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists
[   12.824988] brcmfmac: brcmf_add_if: ignore IF event
[   12.830851] brcmfmac: power management disabled