DCMD_SDMMC_* Parent topic: DCMD_SDMMC_*

DCMD_SDMMC_ASSD_PROPERTIES

Updated: October 28, 2024

Get Advanced Security SD card properties

Synopsis:

#include <hw/dcmd_sim_sdmmc.h>

#define DCMD_SDMMC_ASSD_PROPERTIES __DIOF(_DCMD_CAM, _SIM_SDMMC + 6, struct _sdmmc_assd_properties)

Arguments to devctl():

Argument Value
filedes A file descriptor that you obtained by opening the device
dcmd DCMD_SDMMC_ASSD_PROPERTIES
dev_data_ptr A pointer to a SDMMC_ASSD_PROPERTIES structure
n_bytes sizeof(SDMMC_ASSD_PROPERTIES)
dev_info_ptr NULL

Description:

This command gets ASSD properties.

Input:

None.

Output:

A filled-in SDMMC_ASSD_PROPERTIES structure: 

typedef struct _sdmmc_assd_properties {
        uint8_t         assd_version;
        uint8_t         assd_sec_sys_vendor_id;
        uint16_t        assd_sec_sys;

        uint16_t        suspendible_sec_sys;
        uint16_t        sup_auth_alg;
        uint16_t        sup_enc_alg;
        uint16_t        cl_support;

        uint8_t         sec_read_latency;               /* 250ms units */
        uint8_t         sec_write_latency;              /* 250ms units */
        uint8_t         wr_sec_bus_busy;                /* 250ms units */
        uint8_t         ctrl_sys_bus_busy;              /* 250ms units */

        uint8_t         pmem_support;
        uint8_t         pmem_rd_time;                   /* 100ms units */
        uint8_t         pmem_wr_time;                   /* 250ms units */

        uint8_t         rsvd[17];
} SDMMC_ASSD_PROPERTIES;

See also:

devctl() in the QNX Neutrino C Library Reference

Parent topic: DCMD_SDMMC_*