On Tue, 2013-05-14 at 01:24 +0800, Qiaowei Ren wrote: > static int __init txt_sysfs_init(void) > +{ > + if (!tboot_enabled()) > + return -ENODEV; If there's a CPU flag that indicates tboot support, you should add a modalias for it in order to ensure that the module gets automatically loaded. -- Matthew Garrett | mjg59@srcf.ucam.org ÿôèº{.nÇ+‰·Ÿ®‰­†+%ŠËÿ±éݶ¥Šwÿº{.nÇ+‰·¥Š{±þG«�éÿŠ{ayºʇڙë,j­¢f£¢·hš�ï�êÿ‘êçz_è®(­éšŽŠÝ¢j"�ú¶m§ÿÿ¾«þG«�éÿ¢¸?™¨è­Ú&£ø§~�á¶iO•æ¬z·švØ^¶m§ÿÿà ÿ¶ìÿ¢¸?–I¥