Android system debugging wifi Summary

Android system debugging wifi Summary

I. Environment

Platform: CES-C110 Platform

Processor: CortexTM-A8 kernel CPU S5PC110

System: android2.2

Ii. Problems

# Wpa_cli-iwlan0

Appearance: cocould not connect to wpa_supplicant-re-trying

This error may be caused by the failure to start your wpa_supplicant process.

See the following command:

1) modify the wpa_supplicant.conf File

Comment out all the content and leave only this line of statement:

#/Etc/wpa_supplicant.conf

Ctrl_interface =/var/run/wpa_supplicant

#

2) Start the wpa_supplicant process:

Wpa_supplicant-Dwext-iwlan0-c/etc/wifi/wpa_supplicant.conf &

Or wpa_supplicant-B-Dwext-iwlan0-c/etc/wpa_supplicant.conf

Wpa_supplicant-dd-Dwext-iwlan0-c/data/misc/wifi/wpa_supplicant.conf &

3) Run ps-aux to check whether the startup is complete. 4) if this process exists, you can use the wpa_cli command for further configuration.

Wpa_cli-iwlan0

In this case, the error message "cocould not connect to wpa_supplicant-re-trying" will no longer appear.

And a new prompt ">" is displayed"

Iii. debugging

Wpa_supplicant-Dwext-iwlan0-c/data/misc/wifi/wpa_supplicant.conf-dd-B

Wpa_cli-I wlan0-p/data/system/wpa_supplicant

Then scan

> Scan

OK

> Scan_results

Bssid/frequency/signal level/flags/ssid

Add_network

Set_network 0 ssid "TP-LINK_RAINJET"

Set_network 0 key_mgmt WPA-PSK

Set_network 0 psk '"1234 abcd "'

Set_network 0 pairwise CCMP

Set_network 0 group CCMP

Set_network 0 proto WPA

Enable_network 0

Quit

Then configure the IP address

Ping it.