Extend the comment explaining the condition for discarding
out-of-range values to clarify the cases in which devices don't
provide any logical min/max.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
/*
* Ignore out-of-range values as per HID specification,
- * section 5.10 and 6.2.25
+ * section 5.10 and 6.2.25.
+ *
+ * The logical_minimum < logical_maximum check is done so that we
+ * don't unintentionally discard values sent by devices which
+ * don't specify logical min and max.
*/
if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
(field->logical_minimum < field->logical_maximum) &&