kernelconfig_penguin
default or selected kernelversion does not have config value CONFIG_ATH6KL_HCI_BRIDGE.
Result is shown for kernelversion 3.1.9

HCI over SDIO support

configname: CONFIG_ATH6KL_HCI_BRIDGE

Linux Kernel Configuration
└─> Device Drivers
└─> Staging drivers
└─> HCI over SDIO support

Enables BT over SDIO. Applicable only for combo designs (eg: WB31)