Unmap the device's shared memory object
#include <mmc/sdio.h> #define DCMD_SDIO_SHMEM_FINI __DIOT (_DCMD_MISC, 0x11, int)
| Argument | Value |
|---|---|
| filedes | A file descriptor that you obtained by opening the device |
| dcmd | DCMD_SDIO_SHMEM_FINI |
| dev_data_ptr | A pointer to an int |
| n_bytes | sizeof(int) |
| dev_info_ptr | NULL |
This command unmaps the device's shared memory object.
The I/O function whose shared memory you want to unmap, or -1 for the default function.
None.