/usr/include/omhacks/sysfs.h is in libomhacks-dev 0.16-1+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | #ifndef OMHACKS_SYSFS_H
#define OMHACKS_SYSFS_H
/*
* omhacks - Various useful utility functions for the FreeRunner
*
* Copyright (C) 2009 Enrico Zini <enrico@enricozini.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Get the sysfs path of a useful file
*
* Returns a pointer to a string stored in read-only section, not
* static buffer. Returns NULL on error.
*/
const char* om_sysfs_path(const char* name);
/*
* Read the contents of a sysfs file
*
* Note: the result is returned in a static buffer that will be overwritten by
* following invocations. Returns NULL on error.
*/
const char* om_sysfs_get(const char* name);
/*
* Set a sysfs value
*
* Returns zero on success and a negative value on error.
*/
int om_sysfs_set(const char* name, const char* val);
/*
* Combination of set and set: return the old value and set a new one
* Returns a negative value on error.
*/
const char* om_sysfs_swap(const char* name, const char* val);
/*
* Read the first 1024 bytes of the given file
*
* Note: the result is returned in a static buffer that will be overwritten by
* following invocations. Returns NULL on error.
*/
const char* om_sysfs_readfile(const char* pathname);
/*
* Write a string to the given file
* Returns a negative value on error.
*/
int om_sysfs_writefile(const char* pathname, const char* str);
#endif
|