Here is more debug information: # lsmod Module Size Used by option 45056 0 usb_wwan 20480 1 option usbserial 36864 2 option,usb_wwan mwifiex_sdio 36864 0 mwifiex 282624 1 mwifiex_sdio evbug 16384 0 # dmesg | grep mwifiex [ 34.511371] mwifiex_sdio mmc0:0001:1: info: FW download over, size 258680 bytes [ 34.788787] mwifiex_sdio mmc0:0001:1: WLAN FW is active [ 34.873196] mwifiex_sdio mmc0:0001:1: CMD_RESP: cmd 0x242 error, result=0x2 [ 34.880490] mwifiex_sdio mmc0:0001:1: mwifiex_process_cmdresp: cmd 0x242 failed during initialization [ 35.143577] mwifiex_sdio mmc0:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (14.68.36.p60) [ 35.152105] mwifiex_sdio mmc0:0001:1: driver_version = mwifiex 1.0 (14.68.36.p60) [ 59.004255] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 85.976707] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 166.949603] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 409.846886] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 709.774170] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 1009.659982] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 1309.572448] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 1609.481624] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 1909.370729] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 2209.279569] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 2509.170356] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 2809.085551] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3108.989242] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3348.887201] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3375.844143] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3456.825648] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3699.809750] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3699.952233] mwifiex_sdio mmc0:0001:1: info: trying to associate to 'Centaur24GRouter1' bssid 68:ff:7b:3e:d4:24 [ 3700.025358] mwifiex_sdio mmc0:0001:1: info: associated to bssid 68:ff:7b:3e:d4:24 successfully [ 3706.132761] mwifiex_sdio mmc0:0001:1: info: successfully disconnected from 68:ff:7b:3e:d4:24: reason code 15 [ 3717.123970] mwifiex_sdio mmc0:0001:1: info: trying to associate to 'Centaur24GRouter1' bssid 68:ff:7b:3e:d4:24 [ 3717.441578] mwifiex_sdio mmc0:0001:1: info: associated to bssid 68:ff:7b:3e:d4:24 successfully [ 3723.543587] mwifiex_sdio mmc0:0001:1: info: successfully disconnected from 68:ff:7b:3e:d4:24: reason code 15 [ 3727.794640] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3736.782236] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3763.809277] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 3844.811545] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 4087.803951] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 4387.748929] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 4687.718771] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 4987.705092] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 5287.646353] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 5587.643812] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [ 5753.760955] mwifiex_sdio mmc0:0001:1: info: trying to associate to 'Centaur24GRouter1' bssid 68:ff:7b:3e:d4:24 [ 5753.838800] mwifiex_sdio mmc0:0001:1: info: associated to bssid 68:ff:7b:3e:d4:24 successfully [ 5754.162917] mwifiex_sdio mmc0:0001:1: CMD_RESP: cmd 0x23f error, result=0x2 [ 5848.971534] mwifiex_sdio mmc0:0001:1: CMD_RESP: cmd 0x23f error, result=0x2 [19611.826761] mwifiex_sdio mmc0:0001:1: info: successfully disconnected from 68:ff:7b:3e:d4:24: reason code 3 [19654.931976] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [19686.885717] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [19713.896301] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [19794.907957] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [20037.947625] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [20337.974674] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [20637.962485] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [20716.944299] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [20743.951609] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [20824.989582] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [21068.022269] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [21367.979313] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [21667.945929] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [21967.964944] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [22267.953450] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [22567.955314] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [22867.961508] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [23168.000460] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [23468.005767] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [23676.996473] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters [23703.958751] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : Invalid Sched_scan parameters Where is the WiFi driver? Please let me know if you need more debug information. Thank you. Kind regards, - jh On 2/4/20, JH <jupiter.hce@xxxxxxxxx> wrote: > Hi, > > I am running kernel 4.19.75 on iMX6, the WiFi was working most of > time, but from time to time, the connman could not get WiFi be > connected due to following error: > > [23703.958751] ieee80211 phy0: mwifiex_cfg80211_sched_scan_start : > Invalid Sched_scan parameters > > What does that error means, in which circumstance it occurred? How can > we prevent it? > > Thank you. > > Kind regards, > > - jh >
