driver_attr_uwb_emulstate 1600 drivers/platform/x86/thinkpad_acpi.c res = driver_create_file(drv, &driver_attr_uwb_emulstate); driver_attr_uwb_emulstate 1617 drivers/platform/x86/thinkpad_acpi.c driver_remove_file(drv, &driver_attr_uwb_emulstate);