From b3082ae7069bf75d87c7136db7ea0b0b444b4b27 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 26 May 2016 15:05:38 +0100 Subject: lib: Add simple sysfs accessors igt_sysfs_set() for setting an attribute via sysfs, igt_sysfs_get() for reading. v2: Lots of little bugs in igt_sysfs_get() v3: Pass device to open, stop assuming Intel rules. v4: Test opening and reading! Signed-off-by: Chris Wilson --- lib/igt_sysfs.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 lib/igt_sysfs.h (limited to 'lib/igt_sysfs.h') diff --git a/lib/igt_sysfs.h b/lib/igt_sysfs.h new file mode 100644 index 00000000..5c49f64f --- /dev/null +++ b/lib/igt_sysfs.h @@ -0,0 +1,34 @@ +/* + * Copyright © 2016 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#ifndef __IGT_SYSFS_H__ +#define __IGT_SYSFS_H__ + +#include + +int igt_sysfs_open(int device, int *idx); +bool igt_sysfs_set(int dir, const char *attr, const char *value); +char *igt_sysfs_get(int dir, const char *attr); + +#endif /* __IGT_SYSFS_H__ */ -- cgit v1.2.3