usb_optional_function  800 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h 	u8 usb_optional_function;
usb_optional_function  853 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h 	u8 usb_optional_function;
usb_optional_function   14 drivers/net/wireless/realtek/rtw88/rtw8822b.h 	u8 usb_optional_function;