VTF_CHANNEL_DEFINE

#define VTF_CHANNEL_DEFINE	(		_sym,
			_id,
			_sample_fn,
			_init_fn,
			_type,
			_field,
			_default )

#include <include/drivers/vtf_monitoring/vtf_monitoring.h>

Value:

        const int unique_id_##_id = 0;                                                             \
        static const STRUCT_SECTION_ITERABLE(vtf_channel, _sym) = {                                \
                .id = (_id),                                                                       \
                .sample = (_sample_fn),                                                            \
                .init = (_init_fn),                                                                \
                .default_type = (_type),                                                           \
                .default_value._field = (_default),                                                \
        }

Register a channel with the VTF subsystem.

Expands to a static const struct vtf_channel placed in the vtf_channel iterable section.

Parameters

_sym	C symbol name for the descriptor.
_id	enum vtf_channel_id this channel handles.
_sample_fn	Per-channel sample callback. Must be non-NULL.
_init_fn	Optional init callback (NULL if not needed).
_type	Default value's enum vtf_sample_type.
_field	Member of union vtf_sample_value to assign the default into (for example, i32).
_default	Default reading value.