moen
1
查看网卡，只有两个，看例程是三个，两个有线一个无线
[root@imx6ull:~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:01:3F:2D:3E:4D
inet addr:192.168.5.9 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::201:3fff:fe2d:3e4d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:128 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:10610 (10.3 KiB) TX bytes:788 (788.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:288 errors:0 dropped:0 overruns:0 frame:0
TX packets:288 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:21312 (20.8 KiB) TX bytes:21312 (20.8 KiB)
用 ifconfig -a 看看，ifconfig没有eth1执行ifconfig eth1 up就有了
。
moen
3
扫描wifi信号提示命令不对
[root@imx6ull:~]# iw dev wlan0 scan |grep SSID
-bash: iw: command not found
而且up wifi 的时候提示了好几个告警
[ 781.553408] RTW: ===> rtw_ips_pwr_down…
[ 781.559464] RTW: ====> rtw_ips_dev_unload…
[ 781.567473] RTW: usb_read_port_cancel
[ 781.574123] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.587267] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.600431] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.617473] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.630323] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.643164] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.656178] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.669263] RTW: usb_read_port_complete() RX Warning! bDriverStopped(False) O R bSurpriseRemoved(False)
[ 781.678996] RTW: usb_write_port_cancel
[ 781.682845] RTW: ==> rtl8723bu_hal_deinit
[ 781.694331] RTW: CardDisableRTL8723U(wlan0): bMacPwrCtrlOn=1
[ 781.700019] RTW: SetHwReg: bMacPwrCtrlOn=0
[ 781.729464] RTW: <=== rtw_ips_pwr_down… in 180ms
