#include <linux/superhyway.h>
#define superhyway_ro_attr(name, fmt, field) \
#include <linux/superhyway.h>
#define superhyway_ro_attr(name, fmt, field) \
{ \
struct superhyway_device *s = to_superhyway_device(dev); \
return sprintf(buf, fmt, s->field); \
{ \
struct superhyway_device *s = to_superhyway_device(dev); \
return sprintf(buf, fmt, s->field); \