diff --git a/configs/posix b/configs/posix
index f75f6e7..be1163e 100644
--- a/configs/posix
+++ b/configs/posix
@@ -6,3 +6,4 @@
 CONFIG_HWBASE_TIMER_MUTIME		=
 CONFIG_HWBASE_POSIX_FILE		= y
 CONFIG_HWBASE_DEFAULT_MMCONF		= 0
+CONFIG_HWBASE_DIRECT_PCIDEV		=