DCMD_F3S_GETCMP

Get the compresssion setting for a flash filesystem

Synopsis:

#include <sys/dcmd_f3s.h>

#define DCMD_F3S_GETCMP    __DIOTF(_DCMD_F3S, F3S_GETCMP, f3s_cmdcmp_t)

Arguments to devctl():

Argument Value
filedes A file descriptor that you obtained by opening the device.
dcmd DCMD_F3S_GETCMP
dev_data_ptr A pointer to a f3s_cmdcmp_t structure (see below)
n_bytes sizeof(f3s_cmdcmp_t)
dev_info_ptr NULL

Description:

This command gets the compression setting for a flash filesystem.

Input:

A f3s_cmdcmp_t structure:

typedef struct f3s_cmdcmp_s
{
  uint32_t status;    /* cmdcmp status */
  uint32_t cmp_flag;  /* compression flag */
}
f3s_cmdcmp_t;

Output:

If cmd_flag is nonzero, the filesystem is compressed.

See also:

DCMD_F3S_CLRCMP, DCMD_F3S_SETCMP

devctl() in the QNX Neutrino C Library Reference