#define LTTNG_KERNEL_ABI_COUNTER_READ IOWR(0xF6, 0xC0, struct lttng_kernel_abi_counter_read)
#define LTTNG_KERNEL_ABI_COUNTER_AGGREGATE \
_IOWR(0xF6, 0xC1, struct lttng_kernel_abi_counter_aggregate)
-#define LTTNG_KERNEL_ABI_COUNTER_CLEAR _IOW(0xF6, 0xC2, struct lttng_kernel_abi_counter_clear)
+#define LTTNG_KERNEL_ABI_COUNTER_CLEAR _IOW(0xF6, 0xC2, struct lttng_kernel_abi_counter_clear)
+#define LTTNG_KERNEL_ABI_COUNTER_MAP_NR_DESCRIPTORS _IOR(0xF6, 0xC3, uint64_t)
+#define LTTNG_KERNEL_ABI_COUNTER_MAP_DESCRIPTOR \
+ _IOWR(0xF6, 0xC4, struct lttng_kernel_abi_counter_map_descriptor)
+#define LTTNG_KERNEL_ABI_COUNTER_EVENT _IOW(0xF6, 0xC5, struct lttng_kernel_abi_counter_event)
/*
* Those ioctl numbers use the wrong direction, but are kept for ABI backward