... LWN.net Weekly Edition for March 18, 2004 . ... Most applications will want the kobject's sysfs entry to contain one or more attributes with useful information. ... The key to sysfs attributes is the kobject's kobj_type pointer. ... struct sysfs_ops { ssize_t (*show)(struct kobject *kobj, struct attribute *attr, char *buffer); ssize_t (*store)(struct kobject *kobj, struct attribute *attr, const char *buffer, size_t size); }; . ... int sysfs_create_file(struct kobject *kobj, struct attribute *attr); ...