1 files changed, 62 insertions, 0 deletions
diff --git a/mpm/lib/udev_helper.hpp b/mpm/lib/udev_helper.hpp
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+++ b/mpm/lib/udev_helper.hpp
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+//
+// Copyright 2017 Ettus Research (National Instruments)
+//
+// 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 3 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, see <http://www.gnu.org/licenses/>.
+//
+
+#include <libudev.h>
+#include <string>
+#include <vector>
+
+namespace mpm {
+    /*!
+     * The udev_helper class:
+     *
+     * talks to libudev and holds a udev context. Device enumeration is done
+     * once during initialization.
+     * On destruction the udev context is unreferenced again.
+     */
+    class udev_helper{
+    public:
+        udev_helper();
+        ~udev_helper();
+        /*!
+         * Return the nvmem device associated with the parent address
+         * \param address of the parent platform driver
+         * \return a string containing the name of file of the device in /sys
+         */
+        std::string get_eeprom(const std::string &address);
+        /*!
+         * Find spidevices associated with the spi_master
+         * \param address of the parent platform driver
+         * \return a vector of string containing the device paths is /dev
+         */
+        std::vector<std::string> get_spidev_nodes(const std::string &spi_master);
+
+    private:
+        udev *_udev;
+        udev_enumerate *_enumerate;
+    };
+}
+
+#ifdef LIBMPM_PYTHON
+void export_udev_helper(){
+    LIBMPM_BOOST_PREAMBLE("udev")
+    bp::class_<mpm::udev_helper>("udev_helper", bp::init<>())
+        .def("get_eeprom", &mpm::udev_helper::get_eeprom)
+        .def("get_spidev_nodes", &mpm::udev_helper::get_spidev_nodes)
+    ;
+}
+#endif
+