Linux Kernel source code for the device bq Aquaris E4.5
The sources for the Ubuntu Edition can be found on the branch aquaris-E4.5-ubuntu-rtm. The README.md there covers building, etc for Ubuntu.
Specific sources are separated by branches and each version is tagged with it's corresponding number. First, you should clone the project:
$ git clone git@github.com:bq/aquaris-E4.5.git
After it, choose the version you would like to build:
$ cd aquaris-E4.5/
$ git checkout 1.2.1_20140721-0600
Finally, build the kernel:
$ ./makeMtk -t krillin n k