i.MX Mailbox

modulename: imx-mailbox.ko

configname: CONFIG_IMX_MBOX

Linux Kernel Configuration
└─>Device Drivers
└─>Mailbox Hardware Support
└─>i.MX Mailbox
In linux kernel since version 4.2 (release Date: 2015-08-30)  
Mailbox implementation for i.MX Messaging Unit (MU).

source code:
drivers/mailbox/imx-mailbox.c
depends
CONFIG_MAILBOX
CONFIG_ARCH_MXC or CONFIG_COMPILE_TEST

is selected by
CONFIG_IMX_SCU