1/* 2 FUSE-ioctl: ioctl support for FUSE 3 Copyright (C) 2008 SUSE Linux Products GmbH 4 Copyright (C) 2008 Tejun Heo <teheo@suse.de> 5 6 This program can be distributed under the terms of the GNU GPLv2. 7 See the file COPYING. 8*/ 9 10/** @file 11 * @tableofcontents 12 * 13 * Header file to share definitions between the ioctl.c example file 14 * system and the ioctl_client.c test program. 15 * 16 * \include ioctl.h 17 */ 18 19 20#include <sys/types.h> 21#include <sys/uio.h> 22#include <sys/ioctl.h> 23 24enum { 25 FIOC_GET_SIZE = _IOR('E', 0, size_t), 26 FIOC_SET_SIZE = _IOW('E', 1, size_t), 27 28 /* 29 * The following two ioctls don't follow usual encoding rules 30 * and transfer variable amount of data. 31 */ 32 FIOC_READ = _IO('E', 2), 33 FIOC_WRITE = _IO('E', 3), 34}; 35 36struct fioc_rw_arg { 37 off_t offset; 38 void *buf; 39 size_t size; 40 size_t prev_size; /* out param for previous total size */ 41 size_t new_size; /* out param for new total size */ 42}; 43