JacobCrabill commented on code in PR #6057:
URL: https://github.com/apache/incubator-nuttx/pull/6057#discussion_r860004334


##########
include/nuttx/net/ioctl.h:
##########
@@ -112,8 +112,12 @@
 
 /* SocketCAN ****************************************************************/
 
-#define SIOCGCANBITRATE  _SIOC(0x002C)  /* Get bitrate from a CAN controller */
-#define SIOCSCANBITRATE  _SIOC(0x002D)  /* Set bitrate of a CAN controller */
+#define SIOCGCANBITRATE    _SIOC(0x002C)  /* Get bitrate from a CAN controller 
*/
+#define SIOCSCANBITRATE    _SIOC(0x002D)  /* Set bitrate of a CAN controller */
+#define SIOCACANEXTFILTER  _SIOC(0x002E)  /* Add hardware-level exteneded ID 
filter */

Review Comment:
   (It's just a placeholder for now; the implementation of adding/removing hw 
filters has yet to be done, and there's a chance it may need to be done on a 
case-by-case basis by the developers that want it).



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