-/* Create channel LTTNG_CHANNEL */
-#define KERNEL_IO_CREATE_CHANNEL _IOW(0xF6, 0x43, struct lttng_channel)
-#define KERNEL_IO_CREATE_STREAM _IO(0xF6, 0x44)
-#define KERNEL_IO_CREATE_EVENT _IOW(0xF6, 0x45, struct lttng_event)
+/* Session FD ioctl */
+#define LTTNG_KERNEL_METADATA \
+ _IOW(0xF6, 0x50, struct lttng_kernel_channel)
+#define LTTNG_KERNEL_CHANNEL \
+ _IOW(0xF6, 0x51, struct lttng_kernel_channel)
+#define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x52)
+#define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x53)
+
+/* Channel FD ioctl */
+#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x60)
+#define LTTNG_KERNEL_EVENT \
+ _IOW(0xF6, 0x61, struct lttng_kernel_event)