Other may have experienced problems with adb debugging under ubuntu linux.
The symptom is the availability of usb connected android devices e.g. with eclipse. You may test this with
adb usb
When you get
error: insufficient permissions for device
you probably run into the same problem like me. However, I found on the internet some more or less sub optimal solutions
The basic idea is to start adb as root. The solutions I found were cumbersome.
One proposal is to start adb per sudo. An other proposal was to set up a boot script in /etc/init.d
My solution is to give adb the permission to start as root. To do so, switch to root
sudo bash
chown root adb
chmod ug+s-w adb
security fanatics may propose
sudo chown root adb
sudo chmod ug+s-w adb
If adb is already running you need to kill the demon to start with root permission
adb kill-server
When everything went right
adb usb
should return
restarting in USB mode
if not, try lsusb th check whether your device is already connected
Enable adb debugging on your device To use adb with a device connected over USB, you must enable USB debugging in the device system settings, under Developer options. To use adb with a device connected over Wi-Fi, see Connect to a device over Wi-Fi.
Type adb tcpip 5555 in the command line or Terminal and press Enter. Find your phone's IP address in Settings > About Phone > Status > IP Address. Back in the command line or Terminal, type adb connect [your Android's IP address]. Finally, press Enter again.
The Google recommended way to deal with ADB device permissions is to create an UDEV rule which would set appropriate permissions on device enumeration.
As per http://developer.android.com/tools/device.html
If you're developing on Ubuntu Linux, you need to add a udev rules file that contains a USB configuration for each type of device you want to use for development. In the rules file, each device manufacturer is identified by a unique vendor ID, as specified by the ATTR{idVendor} property. For a list of vendor IDs, see USB Vendor IDs, below. To set up device detection on Ubuntu Linux: Log in as root and create this file: /etc/udev/rules.d/51-android.rules. Use this format to add each vendor to the file: SUBSYSTEM=="usb", ATTR{idVendor}=="0bb4", MODE="0666", GROUP="plugdev"
In this example, the vendor ID is for HTC. The MODE assignment specifies read/write permissions, and GROUP defines which Unix group owns the device node. Note: The rule syntax may vary slightly depending on your environment. Consult the udev documentation for your system as needed. For an overview of rule syntax, see this guide to writing udev rules. Now execute: chmod a+r /etc/udev/rules.d/51-android.rules When plugged in over USB, can verify that your device is connected by executing adb devices from your SDK platform-tools/ directory. If connected, you'll see the device name listed as a "device."
use following three command its works for me
sudo bash
adb kill-server
adb usb
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