Write data to the secure silicon region
#include <sys/dcmd_f3s.h> #define DCMD_F3S_WRITESSR __DIOTF(_DCMD_F3S, F3S_WRITESSR, uint32_t)
| Argument | Value |
|---|---|
| filedes | A file descriptor that you obtained by opening the device. |
| dcmd | DCMD_F3S_WRITESSR |
| dev_data_ptr | A pointer to a uint32_t |
| n_bytes | sizeof(uint32_t) |
| dev_info_ptr | NULL |
This command writes data to the secure silicon region. You can open /dev/fs0, move the file position to the appropriate offset, and then write data there.
The number of bytes to write.
The number of bytes that were written.