Why is Eclipse's Android Device Chooser not showing my Android device?
I am using the Android plugin for Eclipse, and when I try to run my program using a real device through the Android Device Chooser, my phone is not listed as a device. I have updated Eclipse, all of the Android packages, and the USB driver, but it still isn't showing up. My phone is running Android 2.1, which is also the target version listed in the Eclipse project.
Also it happens that the device shows up as an unknown target and the serial number as question marks as shown in the screenshot.
Answer
Did you try from your command line (assumed linux)
adb devices
If you got a lot of question marks
List of devices attached
?????????????? device
Check what is the vendor ID of your device:
lsusb
> Bus 003 Device 006: ID 04e8:689e Samsung Electronics Co., Ltd
Vendor ID is '04e8' in this case.
You need to add your device to USB list
sudo vim /etc/udev/rules.d/51-android.rules
and put this line (use your own vendor ID).
SUBSYSTEM=="usb", SYSFS{idVendor}=="04e8", MODE="0666"
Alternatively try the following syntax as pointed out by mcordaro and Yekmer Simsek referring to the documentation
SUBSYSTEM=="usb", ATTR{idVendor}=="04e8", MODE="0666", GROUP="plugdev"
save it, and then
sudo chmod a+r /etc/udev/rules.d/51-android.rules
sudo service udev reload
and it should work now.