diff --git a/src/logid/CMakeLists.txt b/src/logid/CMakeLists.txt
index bf7f61a..529c5f7 100644
--- a/src/logid/CMakeLists.txt
+++ b/src/logid/CMakeLists.txt
@@ -10,7 +10,7 @@ find_package(PkgConfig REQUIRED)
 
 add_executable(logid
         logid.cpp
-        util.cpp
+        util/log.cpp
         DeviceManager.cpp
         Device.cpp
         Receiver.cpp
diff --git a/src/logid/Device.cpp b/src/logid/Device.cpp
index f245fc4..4959afb 100644
--- a/src/logid/Device.cpp
+++ b/src/logid/Device.cpp
@@ -16,7 +16,7 @@
  *
  */
 
-#include "util.h"
+#include "util/log.h"
 #include "Device.h"
 
 using namespace logid;
@@ -25,22 +25,22 @@ using namespace logid::backend;
 Device::Device(std::string path, backend::hidpp::DeviceIndex index) :
     _hidpp20 (path, index), _path (std::move(path)), _index (index)
 {
-    log_printf(DEBUG, "logid::Device created on %s:%d", _path.c_str(), _index);
+    logPrintf(DEBUG, "logid::Device created on %s:%d", _path.c_str(), _index);
 }
 
 Device::Device(const std::shared_ptr<backend::raw::RawDevice>& raw_device,
         hidpp::DeviceIndex index) : _hidpp20(raw_device, index), _path
         (raw_device->hidrawPath()), _index (index)
 {
-    log_printf(DEBUG, "logid::Device created on %s:%d", _path.c_str(), _index);
+    logPrintf(DEBUG, "logid::Device created on %s:%d", _path.c_str(), _index);
 }
 
 void Device::sleep()
 {
-    log_printf(INFO, "%s:%d fell asleep.", _path.c_str(), _index);
+    logPrintf(INFO, "%s:%d fell asleep.", _path.c_str(), _index);
 }
 
 void Device::wakeup()
 {
-    log_printf(INFO, "%s:%d woke up.", _path.c_str(), _index);
+    logPrintf(INFO, "%s:%d woke up.", _path.c_str(), _index);
 }
diff --git a/src/logid/DeviceManager.cpp b/src/logid/DeviceManager.cpp
index 7c40687..95448b7 100644
--- a/src/logid/DeviceManager.cpp
+++ b/src/logid/DeviceManager.cpp
@@ -21,7 +21,7 @@
 
 #include "DeviceManager.h"
 #include "Receiver.h"
-#include "util.h"
+#include "util/log.h"
 #include "backend/hidpp10/Error.h"
 #include "backend/dj/Receiver.h"
 
@@ -43,13 +43,13 @@ void DeviceManager::addDevice(std::string path)
     } catch(hidpp::Device::InvalidDevice &e) { // Ignore
         defaultExists = false;
     } catch(std::system_error &e) {
-        log_printf(WARN, "I/O error on %s: %s, skipping device.",
+        logPrintf(WARN, "I/O error on %s: %s, skipping device.",
                 path.c_str(), e.what());
         return;
     }
 
     if(isReceiver) {
-        log_printf(INFO, "Detected receiver at %s", path.c_str());
+        logPrintf(INFO, "Detected receiver at %s", path.c_str());
         auto receiver = std::make_shared<Receiver>(path);
         receiver->run();
         _receivers.emplace(path, receiver);
@@ -69,13 +69,13 @@ void DeviceManager::addDevice(std::string path)
                 if(e.code() != hidpp10::Error::UnknownDevice)
                     throw;
                 else
-                    log_printf(WARN,
+                    logPrintf(WARN,
                             "HID++ 1.0 error while trying to initialize %s:"
                             "%s", path.c_str(), e.what());
             } catch(hidpp::Device::InvalidDevice &e) { // Ignore
             } catch(std::system_error &e) {
                 // This error should have been thrown previously
-                log_printf(WARN, "I/O error on %s: %s", path.c_str(),
+                logPrintf(WARN, "I/O error on %s: %s", path.c_str(),
                         e.what());
             }
         }
@@ -88,12 +88,12 @@ void DeviceManager::removeDevice(std::string path)
 
     if(receiver != _receivers.end()) {
         _receivers.erase(receiver);
-        log_printf(INFO, "Receiver on %s disconnected", path.c_str());
+        logPrintf(INFO, "Receiver on %s disconnected", path.c_str());
     } else {
         auto device = _devices.find(path);
         if(device != _devices.find(path)) {
             _devices.erase(device);
-            log_printf(INFO, "Device on %s disconnected", path.c_str());
+            logPrintf(INFO, "Device on %s disconnected", path.c_str());
         }
     }
 }
diff --git a/src/logid/Receiver.cpp b/src/logid/Receiver.cpp
index de28907..365cb20 100644
--- a/src/logid/Receiver.cpp
+++ b/src/logid/Receiver.cpp
@@ -18,7 +18,7 @@
 
 #include <cassert>
 #include "Receiver.h"
-#include "util.h"
+#include "util/log.h"
 #include "backend/hidpp10/Error.h"
 #include "backend/hidpp20/Error.h"
 
@@ -27,7 +27,7 @@ using namespace logid::backend;
 
 Receiver::Receiver(std::string path) : dj::ReceiverMonitor(path), _path (path)
 {
-    log_printf(DEBUG, "logid::Receiver created on %s", path.c_str());
+    logPrintf(DEBUG, "logid::Receiver created on %s", path.c_str());
 }
 
 void Receiver::addDevice(hidpp::DeviceConnectionEvent event)
@@ -50,7 +50,7 @@ void Receiver::addDevice(hidpp::DeviceConnectionEvent event)
         auto version = hidpp_device.version();
 
         if(std::get<0>(version) < 2) {
-            log_printf(INFO, "Unsupported HID++ 1.0 device on %s:%d connected.",
+            logPrintf(INFO, "Unsupported HID++ 1.0 device on %s:%d connected.",
                     _path.c_str(), event.index);
             return;
         }
@@ -61,11 +61,11 @@ void Receiver::addDevice(hidpp::DeviceConnectionEvent event)
         _devices.emplace(event.index, device);
 
     } catch(hidpp10::Error &e) {
-        log_printf(ERROR,
+        logPrintf(ERROR,
                        "Caught HID++ 1.0 error while trying to initialize "
                        "%s:%d: %s", _path.c_str(), event.index, e.what());
     } catch(hidpp20::Error &e) {
-        log_printf(ERROR, "Caught HID++ 2.0 error while trying to initialize "
+        logPrintf(ERROR, "Caught HID++ 2.0 error while trying to initialize "
                           "%s:%d: %s", _path.c_str(), event.index, e.what());
     }
 }
diff --git a/src/logid/backend/dj/ReceiverMonitor.cpp b/src/logid/backend/dj/ReceiverMonitor.cpp
index 4199178..a983171 100644
--- a/src/logid/backend/dj/ReceiverMonitor.cpp
+++ b/src/logid/backend/dj/ReceiverMonitor.cpp
@@ -18,7 +18,7 @@
 
 #include "ReceiverMonitor.h"
 #include "../../util/thread.h"
-#include "../../util.h"
+#include "../../util/log.h"
 
 #include <utility>
 #include <cassert>
@@ -67,11 +67,11 @@ void ReceiverMonitor::run()
             }}, {[report, path=this->_receiver->rawDevice()->hidrawPath()]
             (std::exception& e) {
                 if(report.subId() == Receiver::DeviceConnection)
-                    log_printf(ERROR, "Failed to add device %d to receiver "
+                    logPrintf(ERROR, "Failed to add device %d to receiver "
                                       "on %s: %s", report.deviceIndex(),
                                       path.c_str(), e.what());
                 else if(report.subId() == Receiver::DeviceDisconnection)
-                    log_printf(ERROR, "Failed to remove device %d from "
+                    logPrintf(ERROR, "Failed to remove device %d from "
                                       "receiver on %s: %s", report.deviceIndex()
                                       ,path.c_str(), e.what());
             }});
diff --git a/src/logid/backend/raw/DeviceMonitor.cpp b/src/logid/backend/raw/DeviceMonitor.cpp
index 133b471..fcbc6db 100644
--- a/src/logid/backend/raw/DeviceMonitor.cpp
+++ b/src/logid/backend/raw/DeviceMonitor.cpp
@@ -18,7 +18,7 @@
 
 #include "DeviceMonitor.h"
 #include "../../util/thread.h"
-#include "../../util.h"
+#include "../../util/log.h"
 
 #include <thread>
 #include <system_error>
@@ -101,14 +101,14 @@ void DeviceMonitor::run()
                 thread::spawn([this, name=devnode]() {
                     this->addDevice(name);
                 }, [name=devnode](std::exception& e){
-                    log_printf(WARN, "Error adding device %s: %s",
+                    logPrintf(WARN, "Error adding device %s: %s",
                             name.c_str(), e.what());
                 });
             else if (action == "remove")
                 thread::spawn([this, name=devnode]() {
                     this->removeDevice(name);
                 }, [name=devnode](std::exception& e){
-                    log_printf(WARN, "Error removing device %s: %s",
+                    logPrintf(WARN, "Error removing device %s: %s",
                                name.c_str(), e.what());
                 });
 
@@ -160,7 +160,7 @@ void DeviceMonitor::enumerate()
         thread::spawn([this, name=devnode]() {
             this->addDevice(name);
         }, [name=devnode](std::exception& e){
-            log_printf(ERROR, "Error adding device %s: %s",
+            logPrintf(ERROR, "Error adding device %s: %s",
                        name.c_str(), e.what());
         });
     }
diff --git a/src/logid/backend/raw/RawDevice.cpp b/src/logid/backend/raw/RawDevice.cpp
index a0af1c2..9719f49 100644
--- a/src/logid/backend/raw/RawDevice.cpp
+++ b/src/logid/backend/raw/RawDevice.cpp
@@ -20,7 +20,7 @@
 #include "../Error.h"
 #include "../hidpp/defs.h"
 #include "../dj/defs.h"
-#include "../../util.h"
+#include "../../util/log.h"
 #include "../hidpp/Report.h"
 
 #include <string>
@@ -230,7 +230,7 @@ std::vector<uint8_t> RawDevice::_respondToReport
 int RawDevice::_sendReport(const std::vector<uint8_t>& report)
 {
     std::lock_guard<std::mutex> lock(_dev_io);
-    if(logid::global_verbosity == LogLevel::RAWREPORT) {
+    if(logid::global_loglevel == LogLevel::RAWREPORT) {
         printf("[RAWREPORT] %s OUT: ", _path.c_str());
         for(auto &i : report)
             printf("%02x ", i);
@@ -295,7 +295,7 @@ int RawDevice::_readReport(std::vector<uint8_t>& report, std::size_t maxDataLeng
     if(0 == ret)
         throw backend::TimeoutError();
 
-    if(logid::global_verbosity == LogLevel::RAWREPORT) {
+    if(logid::global_loglevel == LogLevel::RAWREPORT) {
         printf("[RAWREPORT] %s IN:  ", _path.c_str());
         for(auto &i : report)
             printf("%02x ", i);
diff --git a/src/logid/logid.cpp b/src/logid/logid.cpp
index 077b841..2d885f4 100644
--- a/src/logid/logid.cpp
+++ b/src/logid/logid.cpp
@@ -21,7 +21,7 @@
 #include <cstdlib>
 #include <mutex>
 
-#include "util.h"
+#include "util/log.h"
 #include "DeviceManager.h"
 #include "logid.h"
 
@@ -37,7 +37,7 @@ using namespace logid;
 
 std::string config_file = DEFAULT_CONFIG_FILE;
 
-LogLevel logid::global_verbosity = INFO;
+LogLevel logid::global_loglevel = INFO;
 // Configuration* logid::global_config;
 DeviceManager* logid::finder;
 
@@ -97,25 +97,25 @@ void readCliOptions(int argc, char** argv)
                 option = Option::Help;
                 break;
             default:
-                log_printf(WARN, "%s is not a valid option, ignoring.",
+                logPrintf(WARN, "%s is not a valid option, ignoring.",
                         argv[i]);
             }
 
             switch(option) {
             case Option::Verbose: {
                 if (++i >= argc) {
-                    global_verbosity = DEBUG; // Assume debug verbosity
+                    global_loglevel = DEBUG; // Assume debug verbosity
                     break;
                 }
                 std::string loglevel = argv[i];
                 try {
-                    global_verbosity = stringToLogLevel(argv[i]);
+                    global_loglevel = toLogLevel(argv[i]);
                 } catch (std::invalid_argument &e) {
                     if (argv[i][0] == '-') {
-                        global_verbosity = DEBUG; // Assume debug verbosity
+                        global_loglevel = DEBUG; // Assume debug verbosity
                         i--; // Go back to last argument to continue loop.
                     } else {
-                        log_printf(WARN, e.what());
+                        logPrintf(WARN, e.what());
                         printf("Valid verbosity levels are: Debug, Info, "
                                "Warn/Warning, or Error.\n");
                         exit(EXIT_FAILURE);
@@ -125,7 +125,7 @@ void readCliOptions(int argc, char** argv)
             }
             case Option::Config: {
                 if (++i >= argc) {
-                    log_printf(ERROR, "Config file is not specified.");
+                    logPrintf(ERROR, "Config file is not specified.");
                     exit(EXIT_FAILURE);
                 }
                 config_file = argv[i];
diff --git a/src/logid/util.cpp b/src/logid/util.cpp
index ead4def..03383d4 100644
--- a/src/logid/util.cpp
+++ b/src/logid/util.cpp
@@ -28,32 +28,6 @@
 
 using namespace logid;
 
-void logid::log_printf(LogLevel level, const char* format, ...)
-{
-    if(global_verbosity > level) return;
-
-    va_list vargs;
-    va_start(vargs, format);
-
-    FILE* stream = stdout;
-    if(level == ERROR || level == WARN) stream = stderr;
-
-    fprintf(stream, "[%s] ", level_prefix(level));
-    vfprintf(stream, format, vargs);
-    fprintf(stream, "\n");
-}
-
-const char* logid::level_prefix(LogLevel level)
-{
-    if(level == RAWREPORT) return "RAWREPORT";
-    if(level == DEBUG) return "DEBUG";
-    if(level == INFO) return "INFO" ;
-    if(level == WARN) return "WARN";
-    if(level == ERROR) return "ERROR";
-
-    return "DEBUG";
-}
-
 /*
 Direction logid::getDirection(int x, int y)
 {
diff --git a/src/logid/util.h b/src/logid/util.h
index b3f7c2d..24ed02b 100644
--- a/src/logid/util.h
+++ b/src/logid/util.h
@@ -23,28 +23,12 @@
 
 namespace logid
 {
-    enum LogLevel
-    {
-        RAWREPORT,
-        DEBUG,
-        INFO,
-        WARN,
-        ERROR
-    };
-
-    extern LogLevel global_verbosity;
-
-    void log_printf(LogLevel level, const char* format, ...);
-
-    const char* level_prefix(LogLevel level);
-
     /*
     Direction getDirection(int x, int y);
     Direction stringToDirection(std::string s);
     GestureMode stringToGestureMode(std::string s);
     Action stringToAction(std::string s);
      */
-    LogLevel stringToLogLevel(std::string s);
 }
 
 #endif //LOGID_UTIL_H
\ No newline at end of file
diff --git a/src/logid/util/ExceptionHandler.cpp b/src/logid/util/ExceptionHandler.cpp
index 3019806..859783f 100644
--- a/src/logid/util/ExceptionHandler.cpp
+++ b/src/logid/util/ExceptionHandler.cpp
@@ -16,7 +16,7 @@
  *
  */
 #include <system_error>
-#include "../util.h"
+#include "log.h"
 #include "ExceptionHandler.h"
 #include "../backend/hidpp10/Error.h"
 #include "../backend/hidpp20/Error.h"
@@ -28,16 +28,16 @@ void ExceptionHandler::Default(std::exception& error)
     try {
         throw error;
     } catch(backend::hidpp10::Error& e) {
-        log_printf(WARN, "HID++ 1.0 error ignored on detached thread: %s",
+        logPrintf(WARN, "HID++ 1.0 error ignored on detached thread: %s",
                 error.what());
     } catch(backend::hidpp20::Error& e) {
-        log_printf(WARN, "HID++ 2.0 error ignored on detached thread: %s",
+        logPrintf(WARN, "HID++ 2.0 error ignored on detached thread: %s",
                    error.what());
     } catch(std::system_error& e) {
-        log_printf(WARN, "System error ignored on detached thread: %s",
+        logPrintf(WARN, "System error ignored on detached thread: %s",
                    error.what());
     } catch(std::exception& e) {
-        log_printf(WARN, "Error ignored on detached thread: %s",
+        logPrintf(WARN, "Error ignored on detached thread: %s",
                    error.what());
     }
 }
\ No newline at end of file
diff --git a/src/logid/util/log.cpp b/src/logid/util/log.cpp
new file mode 100644
index 0000000..af7bfe4
--- /dev/null
+++ b/src/logid/util/log.cpp
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2019-2020 PixlOne
+ *
+ * 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 <cstdio>
+#include <string>
+#include <cstdarg>
+#include <algorithm>
+#include <stdexcept>
+#include "log.h"
+
+using namespace logid;
+
+void logid::logPrintf(LogLevel level, const char* format, ...)
+{
+    if(global_loglevel > level) return;
+
+    va_list vargs;
+    va_start(vargs, format);
+
+    FILE* stream = stdout;
+    if(level == ERROR || level == WARN)
+        stream = stderr;
+
+    fprintf(stream, "[%s] ", levelPrefix(level));
+    vfprintf(stream, format, vargs);
+    fprintf(stream, "\n");
+}
+
+const char* logid::levelPrefix(LogLevel level)
+{
+    switch(level) {
+    case RAWREPORT:
+        return "RAWREPORT";
+    case DEBUG:
+        return "DEBUG";
+    case INFO:
+        return "INFO";
+    case WARN:
+        return "WARN";
+    case ERROR:
+        return "ERROR";
+    default:
+        return "UNKNOWN";
+    }
+}
+
+
+LogLevel logid::toLogLevel(std::string s)
+{
+    std::string original_str = s;
+    std::transform(s.begin(), s.end(), s.begin(), ::tolower);
+
+    if(s == "rawreport")
+        return RAWREPORT;
+    if(s == "debug")
+        return DEBUG;
+    if(s == "info")
+        return INFO;
+    if(s == "warn" || s == "warning")
+        return WARN;
+    if(s == "error")
+        return ERROR;
+
+    throw std::invalid_argument(original_str + " is an invalid log level.");
+}
\ No newline at end of file
diff --git a/src/logid/util/log.h b/src/logid/util/log.h
new file mode 100644
index 0000000..fad0b66
--- /dev/null
+++ b/src/logid/util/log.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2019-2020 PixlOne
+ *
+ * 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/>.
+ *
+ */
+#ifndef LOGID_LOG_H
+#define LOGID_LOG_H
+
+#include <string>
+
+namespace logid
+{
+    enum LogLevel
+    {
+        RAWREPORT,
+        DEBUG,
+        INFO,
+        WARN,
+        ERROR
+    };
+
+    extern LogLevel global_loglevel;
+
+    void logPrintf(LogLevel level, const char *format, ...);
+    const char *levelPrefix(LogLevel level);
+    LogLevel toLogLevel(std::string s);
+}
+
+#endif //LOGID_LOG_H