currently writing an extensive tutorial for all of kobjects and ktypes and sysfs and attributes and so on, so i'm perusing the stuff under Documentation/driver-model, and i read this in "class.txt": ... snip ... Exporting Attributes ~~~~~~~~~~~~~~~~~~~~ struct devclass_attribute { struct attribute attr; ssize_t (*show)(struct device_class *, char * buf, size_t count, loff_t off); ssize_t (*store)(struct device_class *, const char * buf, size_t count, loff_t off); }; Class drivers can export attributes using the DEVCLASS_ATTR macro that works similarly to the DEVICE_ATTR macro for devices. For example, a definition like this: static DEVCLASS_ATTR(debug,0644,show_debug,store_debug); is equivalent to declaring: static devclass_attribute devclass_attr_debug; ... etc etc ... until now, i'd never heard of a "devclass_attribute", and "git log" certainly doesn't appear to explain how it came to be. anyone know what the story is behind "devclass_attribute"? methinks it can be tossed from the current Documentation. thoughts? rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================