diff --git a/Makefile.common b/Makefile.common
index 223eea3f3a..754df9eb2d 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -172,6 +172,7 @@ OBJ += frontend/frontend.o \
record/record_driver.o \
performance.o
+
OBJ += gfx/image/image.o
# LibretroDB
@@ -391,6 +392,12 @@ ifeq ($(HAVE_UDEV), 1)
OBJ += input/drivers/udev_input.o input/drivers_joypad/udev_joypad.o
endif
+ifeq ($(HAVE_LIBUSB), 1)
+ OBJ += input/drivers_hid/libusb_hid.o
+ LIBS += -lusb-1.0
+ JOYCONFIG_LIBS += -lusb-1.0
+endif
+
ifeq ($(HAVE_PARPORT), 1)
OBJ += input/drivers_joypad/parport_joypad.o
endif
@@ -689,6 +696,7 @@ ifeq ($(HAVE_COMPRESSION), 1)
DEFINES += -DHAVE_COMPRESSION
endif
+
# Joyconfig binary
JOYCONFIG_OBJ += tools/retroarch-joyconfig-griffin.o
diff --git a/griffin/griffin.c b/griffin/griffin.c
index 710a4cb858..47a74bd9ea 100644
--- a/griffin/griffin.c
+++ b/griffin/griffin.c
@@ -344,6 +344,9 @@ INPUT
#include "../input/drivers_joypad/hid_joypad.c"
#include "../input/drivers_hid/null_hid.c"
+#ifdef HAVE_LIBUSB
+#include "../input/drivers_hid/libusb_hid.c"
+#endif
#ifdef HAVE_HID
#include "../input/drivers_hid/apple_hid.c"
diff --git a/input/drivers_hid/libusb_hid.c b/input/drivers_hid/libusb_hid.c
new file mode 100644
index 0000000000..787d1f3cf2
--- /dev/null
+++ b/input/drivers_hid/libusb_hid.c
@@ -0,0 +1,304 @@
+/* RetroArch - A frontend for libretro.
+ * Copyright (C) 2011-2015 - Daniel De Matteis
+ *
+ * RetroArch 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 Found-
+ * ation, either version 3 of the License, or (at your option) any later version.
+ *
+ * RetroArch 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 RetroArch.
+ * If not, see .
+ */
+
+#include
+#include
+#include "../../driver.h"
+#include "../input_hid_driver.h"
+
+typedef struct libusb_hid
+{
+ libusb_hotplug_callback_handle hp;
+} libusb_hid_t;
+
+struct libusb_adapter
+{
+ volatile bool quitting;
+ struct libusb_device *device;
+ libusb_device_handle *handle;
+
+ sthread_t *thread;
+ struct libusb_adapter *next;
+};
+
+static struct libusb_adapter adapters;
+
+static void adapter_thread(void *data)
+{
+ struct libusb_adapter *adapter = (struct libusb_adapter*)data;
+
+ while (!adapter->quitting)
+ {
+#if 0
+ static unsigned count;
+ fprintf(stderr, "Gets here, count: %d\n", count++);
+#endif
+ }
+}
+
+static int add_adapter(struct libusb_device *dev)
+{
+ int rc;
+ struct libusb_device_descriptor desc;
+ struct libusb_adapter *old_head = NULL;
+ struct libusb_adapter *adapter = (struct libusb_adapter*)calloc(1, sizeof(struct libusb_adapter));
+
+ if (!adapter)
+ {
+ fprintf(stderr, "Allocation of adapter failed.\n");
+ return -1;
+ }
+
+ rc = libusb_get_device_descriptor(dev, &desc);
+
+ if (rc != LIBUSB_SUCCESS)
+ {
+ fprintf(stderr, "Error getting device descriptor.\n");
+ goto error;
+ }
+
+ adapter->device = dev;
+
+ rc = libusb_open (adapter->device, &adapter->handle);
+
+ if (rc != LIBUSB_SUCCESS)
+ {
+ fprintf(stderr, "Error opening device 0x%p (VID/PID: %04x:%04x).\n",
+ adapter->device, desc.idVendor, desc.idProduct);
+ goto error;
+ }
+
+ if (libusb_kernel_driver_active(adapter->handle, 0) == 1
+ && libusb_detach_kernel_driver(adapter->handle, 0))
+ {
+ fprintf(stderr, "Error detaching handle 0x%p from kernel.\n", adapter->handle);
+ goto error;
+ }
+
+ fprintf(stderr, "Device 0x%p attached (VID/PID: %04x:%04x).\n",
+ adapter->device, desc.idVendor, desc.idProduct);
+
+ adapter->thread = sthread_create(adapter_thread, adapter);
+
+ if (!adapter->thread)
+ {
+ fprintf(stderr, "Error initializing adapter thread.\n");
+ goto error;
+ }
+
+ old_head = adapters.next;
+ adapters.next = adapter;
+ adapter->next = old_head;
+
+ return 0;
+
+error:
+ if (adapter->thread)
+ {
+ sthread_join(adapter->thread);
+ }
+ if (adapter)
+ free(adapter);
+ return -1;
+}
+
+static int remove_adapter(struct libusb_device *dev)
+{
+ struct libusb_adapter *adapter = (struct libusb_adapter*)&adapters;
+
+ while (adapter->next != NULL)
+ {
+ if (adapter->next->device == dev)
+ {
+ fprintf(stderr, "Device 0x%p disconnected.\n", adapter->next->device);
+
+ struct libusb_adapter *new_next = NULL;
+ adapter->next->quitting = true;
+ sthread_join(adapter->next->thread);
+
+ libusb_close(adapter->next->handle);
+
+ new_next = adapter->next->next;
+ free(adapter->next);
+ adapter->next = new_next;
+
+ return 0;
+ }
+
+ adapter = adapter->next;
+ }
+
+ return -1;
+}
+
+static int libusb_hid_hotplug_callback(struct libusb_context *ctx,
+ struct libusb_device *dev, libusb_hotplug_event event, void *user_data)
+{
+
+ switch (event)
+ {
+ case LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED:
+ add_adapter(dev);
+ break;
+ case LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT:
+ remove_adapter(dev);
+ break;
+ default:
+ fprintf(stderr, "Unhandled event: %d\n", event);
+ break;
+ }
+
+ return 0;
+}
+
+
+static bool libusb_hid_joypad_query(void *data, unsigned pad)
+{
+ return pad < MAX_USERS;
+}
+
+static const char *libusb_hid_joypad_name(void *data, unsigned pad)
+{
+ /* TODO/FIXME - implement properly */
+ if (pad >= MAX_USERS)
+ return NULL;
+
+ return NULL;
+}
+
+static uint64_t libusb_hid_joypad_get_buttons(void *data, unsigned port)
+{
+ (void)data;
+ (void)port;
+
+ return 0;
+}
+
+static bool libusb_hid_joypad_button(void *data, unsigned port, uint16_t joykey)
+{
+ (void)data;
+ (void)port;
+ (void)joykey;
+
+ return false;
+}
+
+static bool libusb_hid_joypad_rumble(void *data, unsigned pad,
+ enum retro_rumble_effect effect, uint16_t strength)
+{
+ (void)data;
+ (void)pad;
+ (void)effect;
+ (void)strength;
+
+ return false;
+}
+
+static int16_t libusb_hid_joypad_axis(void *data, unsigned port, uint32_t joyaxis)
+{
+ (void)data;
+ (void)port;
+ (void)joyaxis;
+
+ return 0;
+}
+
+static void libusb_hid_free(void *data)
+{
+ libusb_hid_t *hid = (libusb_hid_t*)data;
+
+ while(adapters.next)
+ remove_adapter(adapters.next->device);
+
+ libusb_hotplug_deregister_callback(NULL, hid->hp);
+
+ libusb_exit(NULL);
+ if (hid)
+ free(hid);
+}
+
+static void *libusb_hid_init(void)
+{
+ unsigned i;
+ int ret, count;
+ struct libusb_device **devices;
+ libusb_hid_t *hid = (libusb_hid_t*)calloc(1, sizeof(*hid));
+
+ if (!hid)
+ goto error;
+
+ ret = libusb_init(NULL);
+
+ if (ret < 0)
+ goto error;
+
+ if (!libusb_has_capability(LIBUSB_CAP_HAS_HOTPLUG))
+ goto error;
+
+ count = libusb_get_device_list(NULL, &devices);
+
+ for (i = 0; i < count; i++)
+ {
+ struct libusb_device_descriptor desc;
+ libusb_get_device_descriptor(devices[i], &desc);
+
+ if (desc.idVendor > 0 && desc.idProduct > 0)
+ add_adapter(devices[i]);
+ }
+
+ if (count > 0)
+ libusb_free_device_list(devices, 1);
+
+ ret = libusb_hotplug_register_callback(NULL,
+ LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED |
+ LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT, 0,
+ LIBUSB_HOTPLUG_MATCH_ANY,
+ LIBUSB_HOTPLUG_MATCH_ANY,
+ LIBUSB_HOTPLUG_MATCH_ANY,
+ libusb_hid_hotplug_callback,
+ NULL,
+ &hid->hp);
+
+ if (ret != LIBUSB_SUCCESS)
+ {
+ fprintf(stderr, "Error creating a hotplug callback.\n");
+ goto error;
+ }
+
+ return hid;
+
+error:
+ libusb_hid_free(hid);
+ return hid;
+}
+
+
+static void libusb_hid_poll(void *data)
+{
+ (void)data;
+}
+
+hid_driver_t libusb_hid = {
+ libusb_hid_init,
+ libusb_hid_joypad_query,
+ libusb_hid_free,
+ libusb_hid_joypad_button,
+ libusb_hid_joypad_get_buttons,
+ libusb_hid_joypad_axis,
+ libusb_hid_poll,
+ libusb_hid_joypad_rumble,
+ libusb_hid_joypad_name,
+ "libusb",
+};
diff --git a/input/input_hid_driver.c b/input/input_hid_driver.c
index 6b831926b5..5a9a5a2fa0 100644
--- a/input/input_hid_driver.c
+++ b/input/input_hid_driver.c
@@ -25,6 +25,9 @@
static hid_driver_t *hid_drivers[] = {
#ifdef __APPLE__
&apple_hid,
+#endif
+#ifdef HAVE_LIBUSB
+ &libusb_hid,
#endif
&null_hid,
NULL,
diff --git a/input/input_hid_driver.h b/input/input_hid_driver.h
index 8e357cc1df..1cbb429cb4 100644
--- a/input/input_hid_driver.h
+++ b/input/input_hid_driver.h
@@ -44,6 +44,7 @@ struct hid_driver
};
extern hid_driver_t apple_hid;
+extern hid_driver_t libusb_hid;
extern hid_driver_t null_hid;
/**
diff --git a/tools/retroarch-joyconfig-griffin.c b/tools/retroarch-joyconfig-griffin.c
index ae8a0a6d02..404aaf9e50 100644
--- a/tools/retroarch-joyconfig-griffin.c
+++ b/tools/retroarch-joyconfig-griffin.c
@@ -49,6 +49,12 @@
#include "../input/drivers/nullinput.c"
#include "../input/drivers_hid/null_hid.c"
+
+#ifdef HAVE_LIBUSB
+#include "../input/drivers_hid/libusb_hid.c"
+#include "../libretro-common/rthreads/rthreads.c"
+#endif
+
#include "../input/drivers_joypad/hid_joypad.c"
#include "../input/drivers_joypad/nullinput_joypad.c"