Android ADB driver needs root

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Apologies for the edits, I forgot that markup isn't allowed in the bug reports.

I do not think that it is possible to create udev rules which would work for every Android device. That's why there was none of such in package.

Most common way is listing of VendorId:ProductId but with zillions of devices it would require weekly updates just to keep rules a bit more up to date.

Thank you Marcin, that makes sense.

Isn't it still possible for the adb service to run privileged?

I do not want to give too much power to adb command. One option could be some simple udev rule for one/two devices which would work as kind of template for users to adapt it for their devices.

This bug is related to https://bugs.launchpad.net/ubuntu/+source/android-tools/+bug/1132523 filed under the same project. Both bugs are the result of a single problem and a solution would solve both of them. The problem is that the udev rule created by android-tools in /lib/udev/rules.d/51-android-rules.rules assigns GROUP="adbusers".This is a nonexistant group. I solved the bug by changing the GROUP="adbusers" entries to GROUP="plugdev". I'm attaching the fixed /lib/udev/rules.d/51-android-rules.rules file.

According to https://bugs.launchpad.net/ubuntu/+source/android-tools/+bug/1132523, an alternative would be to create a 'postinst' script in 'android-rules' package to run the command
groupadd -r adbusers
This is the ideal method,but i haven't tested it.

The latest rules 70-android-rules-adb.rules in Ubuntu 14.04 Trusty Tahr's development version of android-tools-adb contain entirely different rules. They seem to contain fixes for mtp,mass-storage mode when used with usb-debugging.

This bug's been fixed on newer Ubuntu releases. From 𝐔𝐛𝐮𝐧𝐭𝐮 𝟏𝟒.𝟎𝟒𝐋𝐓𝐒 "Trusty" and up adb works 'out of the box' on most devices. adb is made part of android-tools source package and is available from Ubuntu repos: https://launchpad.net/ubuntu/+source/android-tools . adb can be installed by the following command:

sudo apt-get install android-tools-adb

This package installs /lib/udev/rules.d/70-android-tools-adb.rules for udeb to recognise android devices in adb mode. So, there's no need to use root for devices to get recognised in adb anymore. Please consider closing this bug report as it's already been solved.