HCILL protocol support

configname: CONFIG_BT_HCIUART_LL

Linux Kernel Configuration
└─>Networking support
└─>Bluetooth subsystem support
└─>Bluetooth device drivers
└─>HCILL protocol support
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
HCILL (HCI Low Level) is a serial protocol for communication
between Bluetooth device and host. This protocol is required for
serial Bluetooth devices that are based on Texas Instruments'
BRF chips.

Say Y here to compile support for HCILL protocol.