DCMD_ETFS_FORMAT
Format an embedded transaction filesystem
Synopsis:
#include <sys/dcmd_mem.h>
#define DCMD_ETFS_FORMAT __DION(_DCMD_MEM, 103)
Arguments to devctl():
| Argument | Value |
|---|---|
| filedes | A file descriptor that you obtained by opening the filesystem partition, /dev/etfs2 |
| dcmd | DCMD_ETFS_FORMAT |
| dev_data_ptr | NULL |
| n_bytes | 0 |
| dev_info_ptr | NULL |
Description:
This command erases the device and then formats an empty filesystem. You must be root or have the appropriate permissions to use this command.
Input:
None.
Output:
None.
Errors:
The devctl() function can return the following, in addition to the error codes listed in its entry in the C Library Reference:
- EBUSY
- There are open files in the filesystem.
- EINVAL
- The file descriptor doesn't correspond to the filesystem partition, /dev/etfs2.
- EPERM
- You don't have the required permissions.
See also:
devctl() in the QNX Neutrino C Library Reference
etfsctl, fs-etfs-ram in the Utilities Reference
Page updated: