DCMD_SDMMC_DEVICE_HEALTH

Arguments to devctl():

Description:

This command gets information about the device's health.

Input:

None.

Output:

A filled-in SDMMC_DEVICE_HEALTH structure:

typedef struct _sandisk_health {
        uint32_t        mid;                    /* Manufacture ID */
        uint8_t         lifetime;
        uint8_t         nv_avg_pe;              /* NV Cache avg P/E cycle */
        uint8_t         eua_avg_pe;             /* Enhanced User Area avg P/E cycle */
        uint8_t         mlc_avg_pe;             /* MLC avg P/E cycle */
} SANDISK_HEALTH;

typedef struct _samsung_health {
        uint32_t        mid;                    /* Manufacture ID */
        uint32_t        bank0_rsvd_blocks;
        uint32_t        bank1_rsvd_blocks;
        uint32_t        bank2_rsvd_blocks;
        uint32_t        bank3_rsvd_blocks;
        uint32_t        init_bad_blocks;
        uint32_t        runtime_bad_blocks;
        uint32_t        slc_max_ec;             /* SLC Maximum Erase Count */
        uint32_t        slc_min_ec;             /* SLC Minimum Erase Count */
        uint32_t        slc_avg_ec;             /* SLC Average Erase Count */
        uint32_t        mlc_max_ec;             /* MLC Maximum Erase Count */
        uint32_t        mlc_min_ec;             /* MLC Minimum Erase Count */
        uint32_t        mlc_avg_ec;             /* MLC Average Erase Count */
        uint32_t        max_ec;                 /* Overall Maximum Erase Count */
        uint32_t        min_ec;                 /* Overall Minimum Erase Count */
        uint32_t        avg_ec;                 /* Overall Average Erase Count */
        uint32_t        read_reclaim;
} SAMSUNG_HEALTH;

typedef struct _toshiba_health {                /* supported from v4.41 onwards */
        uint32_t        mid;                    /* Manufacture ID */
        uint32_t        lifetime_total;
        uint32_t        lifetime_rsvd_blk;
        uint32_t        lifetime_avg_pe;
        uint32_t        mlc_max_pe;             /* MLC Maximum P/E cycle range */
        uint32_t        mlc_avg_pe;             /* MLC Average P/E cycle range */
        uint32_t        slc_max_pe;             /* SLC Maximum P/E cycle range */
        uint32_t        slc_avg_pe;             /* SLC Average P/E cycle range */
} TOSHIBA_HEALTH;

typedef union _sdmmc_device_health {
        uint32_t        mid;                    /* Manufacture ID */
        SANDISK_HEALTH  sandisk;
        SAMSUNG_HEALTH  samsung;
        TOSHIBA_HEALTH  toshiba;
        uint8_t                 bytes[512];
} SDMMC_DEVICE_HEALTH;

See also:

devctl() in the QNX OS C Library Reference