Running "adb" on LG-P925g USB Debugging Interface

Android Tutorials - Herong's Tutorial Examples

∟USB Debugging Applications on LG-P925g Phone

∟Running "adb" on LG-P925g USB Debugging Interface

This section provides a tutorial example on how to run 'adb' commands on LG-P925g Android phone through the USB debugging interface. 'adb -d' is to run commands on the USB device. 'adb -e' is to run commands on the emulator.

With my LG-P925g Android phone connected in USB debugging mode, I can try some Android SDK debugging tools on my Windows computer now.

The first I want to try is the ADB (Android Debugging Bridge) tool:

C:\herong>\local\android-sdk-windows\platform-tools\adb devices
List of devices attached
emulator-5554   device
6B30002400000001        device

C:\herong>\local\android-sdk-windows\platform-tools\adb shell date
error: more than one device and emulator

C:\herong>\local\android-sdk-windows\platform-tools\adb -e shell date
Sun Apr 1 23:29:21 GMT 2012

C:\herong>\local\android-sdk-windows\platform-tools\adb -d shell date
Sun Apr 1 19:29:33 GMT 2012

C:\herong>\local\android-sdk-windows\platform-tools\adb -e shell \
   ping localhost
PING localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=2.52 ms
64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=3.69 ms

C:\herong>\local\android-sdk-windows\platform-tools\adb -d shell \
   ping localhost
ping: icmp open socket: Operation not permitted

C:\herong>\local\android-sdk-windows\platform-tools\adb -d shell
$ df
df
/dev: 226052K total, 12K used, 226040K available (block size 4096)
/lgdrm: 2011K total, 1059K used, 952K available (block size 1024)
/mnt/asec: 226052K total, 0K used, 226052K available (block size 4096)
/mnt/tmp: 4096K total, 0K used, 4096K available (block size 4096)
/system: 613840K total, 530296K used, 83544K available (block size 4096)
/data: 1032088K total, 153872K used, 878216K available (block size 4096)
/misc: 3963K total, 1058K used, 2905K available (block size 1024)
/cache: 63472K total, 4144K used, 59328K available (block size 4096)
/mnt/sdcard: 5844864K total, 2368480K used, 3476384K available (bl...
/mnt/secure/asec: Permission denied
$exit
exit

C:\herong>\local\android-sdk-windows\platform-tools\adb -d logcat
--------- beginning of /dev/log/system
I/ActivityManager(  194): Starting activity: Intent { act=android....
I/ActivityManager(  194): process name to start: com.android.setti...
I/ActivityManager(  194): Start proc com.android.settings for acti...
W/Watchdog(  194): handleMessage monitor is completed.
W/Watchdog(  194): handleMessage mCompleted is true...
I/ActivityManager(  194): process name to start: com.lge.hiddenmen...
I/ActivityManager(  194): Start proc com.lge.hiddenmenu for conten...
D/PowerManagerService(  194): setTimeoutLocked mPolicy.isKeyguardS...
D/PowerManagerService(  194): setTimeoutLocked mPolicy.isKeyguardS...
D/PowerManagerService(  194): setTimeoutLocked mPolicy.isKeyguardS...
D/PowerManagerService(  194): setTimeoutLocked mPolicy.isKeyguardS...
I/ActivityManager(  194): Starting activity: Intent { act=android....
...
^C

What I learned here are:

I have two Android devices on my Windows system to play with now: "emulator-5554" is the Android emulator, and "6B30002400000001" is the LG-P925g phone connected on USB.
If there are more than 1 device connected, the "adb" command requires an option to specify which device to use: "-e" is for the emulator, and "-d" is for the real device.
The "shell date" command returns 2 different time stamps from my emulator and my device, because the clock on the emulator is wrong and needs to be configured.
It looks like the USB Debugging interface on my real LG Android device does not have the root permission. The "shell ping localhost" command returns a permission error on the device.
You need to press "<Ctrl>-C" to stop "adb logcat" command. Otherwise it will continuously print new log data on the screen.