http://www.ip-phone-forum.de/showthread.php?t=249293
kernel: [cpmac] [cpmac_main_ioctl] Error! Unknown ioctl 35143 (not priv: 0)
--
--- agent/mibgroup/if-mib/data_access/interface_linux.c.orig	2011-09-28 06:53:47.000000000 +0200
+++ agent/mibgroup/if-mib/data_access/interface_linux.c	2012-06-24 19:07:58.060472903 +0200
@@ -958,15 +958,7 @@
     ifr.ifr_name[ sizeof(ifr.ifr_name)-1 ] = 0;
     data[0] = 0;
     
-    /*
-     * SIOCGMIIPHY has been defined since at least kernel 2.4.10 (Sept 2001).
-     * It's probably safe to drop the interim SIOCDEVPRIVATE handling now!
-     */
-    if (ioctl(fd, SIOCGMIIPHY, &ifr) < 0) {
-        DEBUGMSGTL(("mibII/interfaces", "SIOCGMIIPHY on %s failed\n",
-                    ifr.ifr_name));
         return retspeed;
-    }
 
     /* Begin getting mii register values */
     phy_id = data[0];