Transfer an APDU packet to the device
#include <hw/dcmd_sim_sdmmc.h> #define DCMD_SDMMC_ASSD_APDU __DIOTF(_DCMD_CAM, _SIM_SDMMC + 8, struct _sdmmc_assd_apdu)
| Argument | Value |
|---|---|
| filedes | A file descriptor that you obtained by opening the device |
| dcmd | DCMD_SDMMC_ASSD_APDU |
| dev_data_ptr | A pointer to a SDMMC_ASSD_APDU that's followed by a buffer |
| n_bytes | sizeof(SDMMC_ASSD_APDU) plus the size of the buffer |
| dev_info_ptr | NULL |
This command transfers Application Protocol Data Unit packets to an Advanced Security SD.
The SDMMC_ASSD_APDU structure is defined as follows:
typedef struct _sdmmc_assd_apdu {
uint32_t length;
uint32_t rsvd[7];
/* uint8_t data[ length ]; variable length data */
} SDMMC_ASSD_APDU;
The length member is the length of the data that follows the structure.
Fill in the length member.
The buffer that data points to is filled with the response, and length is set to be its length.
devctl() in the QNX Neutrino C Library Reference