pin_attr_groups 259 drivers/ptp/ptp_clock.c ptp->dev.groups = ptp->pin_attr_groups; pin_attr_groups 46 drivers/ptp/ptp_private.h const struct attribute_group *pin_attr_groups[2]; pin_attr_groups 288 drivers/ptp/ptp_sysfs.c ptp->pin_attr_groups[0] = &ptp->pin_attr_group;