-#define DEFAULT_UST_SOCK_DIR "/tmp/ust-app-socks"
-#define DEFAULT_GLOBAL_APPS_PIPE "/tmp/ust-app-socks/global"
+#define DEFAULT_UST_SOCK_DIR DEFAULT_HOME_DIR "/ust-app-socks"
+#define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global"
+#define DEFAULT_TRACE_OUTPUT DEFAULT_HOME_DIR "/lttng"
+
+/*
+ * Kernel tracer defines
+ */
+#define DEFAULT_KERNEL_TRACER_PATH "/mnt/debugfs/lttng"
+#define DEFAULT_KERNEL_OVERWRITE 0
+#define DEFAULT_KERNEL_SUBBUF_SIZE 4096 /* bytes */
+#define DEFAULT_KERNEL_SUBBUF_NUM 8 /* Must always be a power of 2 */
+#define DEFAULT_KERNEL_SWITCH_TIMER 0 /* usec */
+#define DEFAULT_KERNEL_READ_TIMER 200 /* usec */