Since I reinstalled Eclipse (simply deleted and downloaded it again) I can\'t debug my applications on Samsung Galaxy i9001 (with CyanogenMod - Android 4.4.2). It worked fin
What I've done to solve the issue was to disconnect and reconnect the usb cable to the USB port again (done with another port on my machine).
Then I have chose to charge and that's it. The mobile device asked me to grant access for the machine, I agreed and that's solved the issue.
When running adb devices, I saw the device in the list.
(Done in Windows 10 home).