dmi_memory_channel
Synopsis
#include <opendmi/entity/memory-channel.h>
typedef struct dmi_memory_channel {
dmi_memory_channel_type_t type;
unsigned short maximum_load;
size_t device_count;
dmi_memory_channel_device_t *devices;
} dmi_memory_channel_t;Description
The dmi_memory_channel_t structure holds the decoded memory channel
structure (type 37) of SMBIOS: it lists the memory devices attached to a
memory channel, and the load each of them puts on the channel. The loads of
all the devices together must not exceed the maximum load of the channel.
When the structures are linked, the library also sets the channel field of
each memory device of the list (see dmi_memory_device) to the entity of
this structure.
The structure is returned by dmi_entity_info for the structures of type
DMI_TYPE(memory_channel), and lives as long as the context it has been
decoded in.
Fields
type-
Type of memory of the channel, see
dmi_memory_channel_type. maximum_load-
Maximum load the channel supports; the sum of the
loadfields of the devices must not exceed it. device_count-
Number of elements of
devices: the devices the structure holds completely, out of the number it declares. devices-
Array of the memory devices attached to the channel, with their loads, see
dmi_memory_channel_device;nullptrif there are none.
Examples
dmi_registry_t *registry = dmi_get_registry(context);
dmi_entity_t *entity = dmi_registry_lookup_first(registry,
DMI_TYPE(memory_channel), false);
dmi_memory_channel_t *channel = dmi_entity_info(entity,
DMI_TYPE(memory_channel));
if (channel != nullptr) {
const char *type = dmi_memory_channel_type_name(channel->type);
printf("%s channel, maximum load %u\n",
type != nullptr ? type : "Unknown", channel->maximum_load);
for (size_t i = 0; i < channel->device_count; i++)
printf("Device 0x%04x: load %u\n",
(unsigned)channel->devices[i].handle,
(unsigned)channel->devices[i].load);
}