MediaTek HCI UART driver

modulename: btmtkuart.ko

configname: CONFIG_BT_MTKUART

Linux Kernel Configuration
└─>Networking support
└─>Bluetooth subsystem support
└─>Bluetooth device drivers
└─>MediaTek HCI UART driver
In linux kernel since version 4.2 (release Date: 2015-08-30)  
MediaTek Bluetooth HCI UART driver.
This driver is required if you want to use MediaTek Bluetooth
with serial interface.

Say Y here to compile support for MediaTek Bluetooth UART devices
into the kernel or say M to compile it as module (btmtkuart).

source code: