dmi_sun_memory_device_ex
Synopsis
#include <opendmi/entity/sun/memory-device-ex.h>
typedef struct dmi_sun_memory_device_ex {
dmi_handle_t memory_device_handle;
uint8_t dram_channel;
uint8_t chip_select_total;
size_t chip_select_count;
uint8_t *chip_selects;
} dmi_sun_memory_device_ex_t;Description
The dmi_sun_memory_device_ex_t structure holds the decoded Sun memory device
extended information structure (type 145), which adds the DRAM channel and the
chip selects of a memory device to its memory device structure (type 17). It is
not part of SMBIOS: Sun firmware provides it, and the library decodes it only
when the Sun extension module (dmi_sun_module, declared in
<opendmi/module/sun.h>) is enabled in the context with dmi_add_extension.
The structure is returned by dmi_entity_info for the structures of type
DMI_TYPE(sun_memory_device_ex), and lives as long as the context it has been
decoded in.
Fields
memory_device_handle-
Handle of the memory device structure (type 17) this structure extends.
dram_channel-
DRAM channel the memory device is on.
chip_select_total-
Number of chip selects the structure declares.
chip_select_count-
Number of elements of
chip_selects: the chip selects the structure holds in full, which may be fewer thanchip_select_totalwhen the structure is truncated. chip_selects-
Chip selects of the memory device, one byte each;
nullptrifchip_select_totalis 0.
Examples
dmi_registry_t *registry = dmi_get_registry(context);
dmi_entity_t *entity = dmi_registry_lookup_first(registry,
DMI_TYPE(sun_memory_device_ex), true);
dmi_sun_memory_device_ex_t *info =
dmi_entity_info(entity, DMI_TYPE(sun_memory_device_ex));
for (size_t i = 0; (info != nullptr) && (i < info->chip_select_count); i++)
printf("channel %u, chip select %u\n", (unsigned)info->dram_channel,
(unsigned)info->chip_selects[i]);