bus_attr_ 54 include/linux/device.h struct bus_attribute bus_attr_##_name = __ATTR_RW(_name) bus_attr_ 56 include/linux/device.h struct bus_attribute bus_attr_##_name = __ATTR_RO(_name) bus_attr_ 58 include/linux/device.h struct bus_attribute bus_attr_##_name = __ATTR_WO(_name)