|SYSFS(2)||Linux Programmer's Manual||SYSFS(2)|
int sysfs(int option, const char *fsname); int sysfs(int option, unsigned int fs_index, char *buf); int sysfs(int option);
The (obsolete) sysfs() system call returns information about the filesystem types currently present in the kernel. The specific form of the sysfs() call and the information returned depends on the option in effect:
- Translate the filesystem identifier string fsname into a filesystem type index.
- Translate the filesystem type index fs_index into a null-terminated filesystem identifier string. This string will be written to the buffer pointed to by buf. Make sure that buf has enough space to accept the string.
- Return the total number of filesystem types currently present in the kernel.
The numbering of the filesystem type indexes begins with zero.
- Either fsname or buf is outside your accessible address space.
- fsname is not a valid filesystem type identifier; fs_index is out-of-bounds; option is invalid.