default or selected kernelversion does not have config value CONFIG_USB_BTMTK.
Result is shown for kernelversion 6.5.1
Mediatek Bluetooth support
modulename: btmtk_usb.ko
configname: CONFIG_USB_BTMTK
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Mediatek Bluetooth support
In linux kernel since version 3.11 (release Date: 2013-09-02)
Say Y here if you wish to control a MTK USB Bluetooth.
This option depends on 'USB' support being enabled
To compile this driver as a module, choose M here: the
module will be called btmtk_usb.
This option depends on 'USB' support being enabled
To compile this driver as a module, choose M here: the
module will be called btmtk_usb.