Altera Mailbox

modulename: mailbox-altera.ko


Linux Kernel Configuration
└─>Device Drivers
└─>Mailbox Hardware Support
└─>Altera Mailbox
In linux kernel since version 4 (release Date: 2015-04-12)  
An implementation of the Altera Mailbox soft core. It is used
to send message between processors. Say Y here if you want to use the
Altera mailbox support.

source code: