From dmesg:
[419544.197798] ERROR @wl_cfg80211_get_tx_power : error (-1) [419545.198994] ERROR @wl_dev_intvar_get : error (-1) [419545.199010] ERROR @wl_cfg80211_get_tx_power : error (-1) [419546.102207] ERROR @wl_dev_intvar_get : error (-1) [419546.102221] ERROR @wl_cfg80211_get_tx_power : error (-1) [419548.191874] net_ratelimit: 2 callbacks suppressed [419548.191886] ERROR @wl_dev_intvar_get : error (-1) [419548.191895] ERROR @wl_cfg80211_get_tx_power : error (-1) [419549.153325] ERROR @wl_dev_intvar_get : error (-1) [419549.153341] ERROR @wl_cfg80211_get_tx_power : error (-1) [419550.107525] ERROR @wl_dev_intvar_get : error (-1) [419550.107540] ERROR @wl_cfg80211_get_tx_power : error (-1) [419551.162466] ERROR @wl_dev_intvar_get : error (-1) [419551.162481] ERROR @wl_cfg80211_get_tx_power : error (-1) [419552.144024] ERROR @wl_dev_intvar_get : error (-1) [419552.144041] ERROR @wl_cfg80211_get_tx_power : error (-1) [419554.038432] net_ratelimit: 2 callbacks suppressed [419554.038445] ERROR @wl_dev_intvar_get : error (-1) [419554.038455] ERROR @wl_cfg80211_get_tx_power : error (-1) [419555.022873] ERROR @wl_dev_intvar_get : error (-1)
From dmesg:
[419544.197798] ERROR @wl_cfg80211_ get_tx_ power : error (-1) get_tx_ power : error (-1) get_tx_ power : error (-1) get_tx_ power : error (-1) get_tx_ power : error (-1) get_tx_ power : error (-1) get_tx_ power : error (-1) get_tx_ power : error (-1) get_tx_ power : error (-1)
[419545.198994] ERROR @wl_dev_intvar_get : error (-1)
[419545.199010] ERROR @wl_cfg80211_
[419546.102207] ERROR @wl_dev_intvar_get : error (-1)
[419546.102221] ERROR @wl_cfg80211_
[419548.191874] net_ratelimit: 2 callbacks suppressed
[419548.191886] ERROR @wl_dev_intvar_get : error (-1)
[419548.191895] ERROR @wl_cfg80211_
[419549.153325] ERROR @wl_dev_intvar_get : error (-1)
[419549.153341] ERROR @wl_cfg80211_
[419550.107525] ERROR @wl_dev_intvar_get : error (-1)
[419550.107540] ERROR @wl_cfg80211_
[419551.162466] ERROR @wl_dev_intvar_get : error (-1)
[419551.162481] ERROR @wl_cfg80211_
[419552.144024] ERROR @wl_dev_intvar_get : error (-1)
[419552.144041] ERROR @wl_cfg80211_
[419554.038432] net_ratelimit: 2 callbacks suppressed
[419554.038445] ERROR @wl_dev_intvar_get : error (-1)
[419554.038455] ERROR @wl_cfg80211_
[419555.022873] ERROR @wl_dev_intvar_get : error (-1)