MediaTek HCI SDIO driver

modulename: btmtksdio.ko

configname: CONFIG_BT_MTKSDIO

Linux Kernel Configuration
└─>Networking support
└─>Bluetooth subsystem support
└─>Bluetooth device drivers
└─>MediaTek HCI SDIO driver
In linux kernel since version 5.1 (release Date: 2019-05-05)  
MediaTek Bluetooth HCI SDIO driver.
This driver is required if you want to use MediaTek Bluetooth
with SDIO interface.

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

source code: