diff --git a/configure.ac b/configure.ac
index ed31491..28719bd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,6 +17,13 @@
 AX_CXX_COMPILE_STDCXX_14([noext])
 AX_APPEND_COMPILE_FLAGS([-Wall -Werror], [CXXFLAGS])
 
+# Download gpio.h from github if necessary.
+AC_CHECK_HEADER(linux/gpio.h,[HAVE_LINUX_GPIO_H=""],[HAVE_LINUX_GPIO_H="-I linux/gpio.h"])
+AS_IF([test "$HAVE_LINUX_GPIO_H" != ""],
+    AC_MSG_WARN([Could not find linux/gpio.h: Attempting to download locally for building from https://raw.githubusercontent.com/torvalds/linux/master/include/uapi/linux/gpio.h])
+    AC_SUBST([BT_BMC_DL],[`mkdir -p linux;wget https://raw.githubusercontent.com/torvalds/linux/master/include/uapi/linux/gpio.h -O linux/gpio.h`])
+)
+
 PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus],,
     AC_MSG_ERROR(["Requires sdbusplus package."]))
 PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging],,\
diff --git a/file.hpp b/file.hpp
new file mode 100644
index 0000000..5be4c4b
--- /dev/null
+++ b/file.hpp
@@ -0,0 +1,73 @@
+#pragma once
+
+#include <unistd.h>
+namespace witherspoon
+{
+namespace power
+{
+namespace util
+{
+
+/**
+ * @class FileDescriptor
+ *
+ * Closes the file descriptor on destruction
+ */
+class FileDescriptor
+{
+    public:
+
+        FileDescriptor() = default;
+        FileDescriptor(const FileDescriptor&) = delete;
+        FileDescriptor& operator=(const FileDescriptor&) = delete;
+        FileDescriptor(FileDescriptor&&) = delete;
+        FileDescriptor& operator=(FileDescriptor&&) = delete;
+
+        /**
+         * Constructor
+         *
+         * @param[in] fd - File descriptor
+         */
+        FileDescriptor(int fd) : fd(fd)
+        {
+        }
+
+        ~FileDescriptor()
+        {
+            if (fd >= 0)
+            {
+                close(fd);
+            }
+        }
+
+        int operator()()
+        {
+            return fd;
+        }
+
+        operator bool() const
+        {
+            return fd != -1;
+        }
+
+        void set(int descriptor)
+        {
+            if (fd >= 0)
+            {
+                close(fd);
+            }
+
+            fd = descriptor;
+        }
+
+    private:
+
+        /**
+         * File descriptor
+         */
+        int fd = -1;
+};
+
+}
+}
+}
diff --git a/power-sequencer/Makefile.am b/power-sequencer/Makefile.am
index 9309999..485ae3e 100644
--- a/power-sequencer/Makefile.am
+++ b/power-sequencer/Makefile.am
@@ -6,6 +6,7 @@
 
 witherspoon_pseq_monitor_SOURCES = \
 	argument.cpp \
+	gpio.cpp \
 	main.cpp \
 	pgood_monitor.cpp \
 	ucd90160.cpp \
diff --git a/power-sequencer/gpio.cpp b/power-sequencer/gpio.cpp
new file mode 100644
index 0000000..32f4358
--- /dev/null
+++ b/power-sequencer/gpio.cpp
@@ -0,0 +1,103 @@
+/**
+ * Copyright © 2017 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <fcntl.h>
+#include <phosphor-logging/elog.hpp>
+#include <phosphor-logging/elog-errors.hpp>
+#include <phosphor-logging/log.hpp>
+#include <sys/ioctl.h>
+#include <xyz/openbmc_project/Common/error.hpp>
+#include "gpio.hpp"
+
+namespace witherspoon
+{
+namespace gpio
+{
+
+using namespace phosphor::logging;
+
+using InternalFailure = sdbusplus::xyz::openbmc_project::Common::
+                        Error::InternalFailure;
+
+Value GPIO::read()
+{
+    assert(direction == Direction::input);
+
+    requestLine();
+
+    gpiohandle_data data{};
+
+    auto rc = ioctl(lineFD(),
+                    GPIOHANDLE_GET_LINE_VALUES_IOCTL,
+                    &data);
+
+    if (rc < 0)
+    {
+        auto e = errno;
+        log<level::ERR>("Failed GET_LINE_VALUES ioctl",
+                        entry("ERRNO=%d", e));
+        elog<InternalFailure>();
+    }
+
+    return (data.values[0] == 0) ? Value::low : Value::high;
+}
+
+
+void GPIO::requestLine()
+{
+    //Only need to do this once
+    if (lineFD)
+    {
+        return;
+    }
+
+    power::util::FileDescriptor fd{open(device.c_str(), 0)};
+    if (fd() == -1)
+    {
+        auto e = errno;
+        log<level::ERR>("Failed opening GPIO device",
+                        entry("DEVICE=%s", device),
+                        entry("ERRNO=%d", e));
+        elog<InternalFailure>();
+    }
+
+    //Make an ioctl call to request the GPIO line, which will
+    //return the descriptor to use to access it.
+    gpiohandle_request request{};
+    strncpy(request.consumer_label,
+            "witherspoon-pfault-analysis",
+            sizeof(request.consumer_label));
+
+    request.flags = (direction == Direction::input) ?
+                    GPIOHANDLE_REQUEST_INPUT : GPIOHANDLE_REQUEST_OUTPUT;
+
+    request.lineoffsets[0] = gpio;
+    request.lines = 1;
+
+    auto rc = ioctl(fd(), GPIO_GET_LINEHANDLE_IOCTL, &request);
+    if (rc == -1)
+    {
+        auto e = errno;
+        log<level::ERR>("Failed GET_LINEHANDLE ioctl",
+                        entry("GPIO=%d", gpio),
+                        entry("ERRNO=%d", e));
+        elog<InternalFailure>();
+    }
+
+    lineFD.set(request.fd);
+}
+
+}
+}
diff --git a/power-sequencer/gpio.hpp b/power-sequencer/gpio.hpp
new file mode 100644
index 0000000..2d3c6dd
--- /dev/null
+++ b/power-sequencer/gpio.hpp
@@ -0,0 +1,107 @@
+#pragma once
+
+#include <linux/gpio.h>
+#include "file.hpp"
+
+namespace witherspoon
+{
+namespace gpio
+{
+
+typedef std::remove_reference<decltype(
+     gpiohandle_request::lineoffsets[0])>::type gpioNum_t;
+
+typedef std::remove_reference<decltype(
+     gpiohandle_data::values[0])>::type gpioValue_t;
+
+/**
+ * If the GPIO is an input or output
+ */
+enum class Direction
+{
+    input,
+    output
+};
+
+/**
+ * The possible values - low or high
+ */
+enum class Value
+{
+    low,
+    high
+};
+
+/**
+ * Represents a GPIO.
+ *
+ * Currently supports reading a GPIO.
+ *
+ * Write support may be added in the future.
+ */
+class GPIO
+{
+    public:
+
+        GPIO() = delete;
+        GPIO(const GPIO&) = delete;
+        GPIO(GPIO&&) = default;
+        GPIO& operator=(const GPIO&) = delete;
+        GPIO& operator=(GPIO&&) = default;
+        ~GPIO() = default;
+
+        /**
+         * Constructor
+         *
+         * @param[in] device - the GPIO device file
+         * @param[in] gpio - the GPIO number
+         * @param[in] direction - the GPIO direction
+         */
+        GPIO(const std::string& device,
+             gpioNum_t gpio,
+             Direction direction) :
+            device(device),
+            gpio(gpio),
+            direction(direction)
+        {
+        }
+
+        /**
+         * Reads the GPIO value
+         *
+         * Requests the GPIO line if it hasn't been done already.
+         *
+         * @return Value - the GPIO value
+         */
+        Value read();
+
+    private:
+
+        /**
+         * Requests a GPIO line from the GPIO device
+         */
+        void requestLine();
+
+        /**
+         * The GPIO device name, like /dev/gpiochip0
+         */
+        const std::string device;
+
+        /**
+         * The GPIO number
+         */
+        const gpioNum_t gpio;
+
+        /**
+         * The GPIO direction
+         */
+        const Direction direction;
+
+        /**
+         * File descriptor for the GPIO line
+         */
+        power::util::FileDescriptor lineFD;
+};
+
+}
+}