elfinder module for codeigniter integration
This support HVMC (module based) out of the box, but you can just copy file to support standard CI install
For module install, download the filemanager.zip and extract to you module folder.
For direct install, go throgh each folder and copy as desired.
The elfinder assets are insdide public folder.
Check Controller/Filemanager.php line 94 for user based forlder access. Edit to suit you auth system.