sysfs: create __ATTR_WO()

This creates the macro __ATTR_WO() for write-only attributes, instead of
having to "open define" them.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2013-08-23 15:02:01 -07:00
parent d06262e585
commit a65fcce75a

View File

@ -80,6 +80,11 @@ struct attribute_group {
.show = _name##_show, \
}
#define __ATTR_WO(_name) { \
.attr = { .name = __stringify(_name), .mode = S_IWUSR }, \
.store = _name##_store, \
}
#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO), \
_name##_show, _name##_store)