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.. _filters.h:
**filters.h**
libnvme directory filter
.. c:function:: int nvme_namespace_filter (const struct dirent *d)
Filter for namespaces
**Parameters**
``const struct dirent *d``
dirent to check
**Return**
1 if **d** matches, 0 otherwise
.. c:function:: int nvme_paths_filter (const struct dirent *d)
Filter for paths
**Parameters**
``const struct dirent *d``
dirent to check
**Return**
1 if **d** matches, 0 otherwise
.. c:function:: int nvme_ctrls_filter (const struct dirent *d)
Filter for controllers
**Parameters**
``const struct dirent *d``
dirent to check
**Return**
1 if **d** matches, 0 otherwise
.. c:function:: int nvme_subsys_filter (const struct dirent *d)
Filter for subsystems
**Parameters**
``const struct dirent *d``
dirent to check
**Return**
1 if **d** matches, 0 otherwise
.. c:function:: int nvme_scan_subsystems (struct dirent ***subsys)
Scan for subsystems
**Parameters**
``struct dirent ***subsys``
Pointer to array of dirents
**Return**
number of entries in **subsys**
.. c:function:: int nvme_scan_subsystem_namespaces (nvme_subsystem_t s, struct dirent ***ns)
Scan for namespaces in a subsystem
**Parameters**
``nvme_subsystem_t s``
Subsystem to scan
``struct dirent ***ns``
Pointer to array of dirents
**Return**
number of entries in **ns**
.. c:function:: int nvme_scan_ctrls (struct dirent ***ctrls)
Scan for controllers
**Parameters**
``struct dirent ***ctrls``
Pointer to array of dirents
**Return**
number of entries in **ctrls**
.. c:function:: int nvme_scan_ctrl_namespace_paths (nvme_ctrl_t c, struct dirent ***paths)
Scan for namespace paths in a controller
**Parameters**
``nvme_ctrl_t c``
Controller to scan
``struct dirent ***paths``
Pointer to array of dirents
**Return**
number of entries in **paths**
.. c:function:: int nvme_scan_ctrl_namespaces (nvme_ctrl_t c, struct dirent ***ns)
Scan for namespaces in a controller
**Parameters**
``nvme_ctrl_t c``
Controller to scan
``struct dirent ***ns``
Pointer to array of dirents
**Return**
number of entries in **ns**
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