From: Rob Clark <redacted>

Split the readN()/writeN() helpers out into an igt_io module, so they
can be re-used by tests.

Signed-off-by: Rob Clark <redacted>
---
 lib/igt_io.c    | 96 +++++++++++++++++++++++++++++++++++++++++++++++++
 lib/igt_io.h    | 33 +++++++++++++++++
 lib/igt_sysfs.c | 45 +++--------------------
 lib/meson.build |  1 +
 4 files changed, 135 insertions(+), 40 deletions(-)
 create mode 100644 lib/igt_io.c
 create mode 100644 lib/igt_io.h

diff --git a/lib/igt_io.c b/lib/igt_io.c
new file mode 100644
index 00000000..ad54cbe5
--- /dev/null
+++ b/lib/igt_io.c

@@ -0,0 +1,96 @@
+/*
+ * 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.
+ *
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "igt_io.h"
+
+/**
+ * SECTION:igt_io
+ * @short_description: Helpers for file I/O
+ * @title: io
+ * @include: igt_io.h
+ *
+ * This library provides helpers for file I/O
+ */
+