Removed unwanted blocks and changed CMakefile

1 files changed, 0 insertions, 1386 deletions

diff --git a/gr-fcd/lib/hid/hid-libusb.c b/gr-fcd/lib/hid/hid-libusb.c
deleted file mode 100644
index 82cbc9151..000000000
--- a/gr-fcd/lib/hid/hid-libusb.c
+++ /dev/null
@@ -1,1386 +0,0 @@
-/*******************************************************
- HIDAPI - Multi-Platform library for
- communication with HID devices.
-
- Alan Ott
- Signal 11 Software
-
- 8/22/2009
- Linux Version - 6/2/2010
- Libusb Version - 8/13/2010
-
- Copyright 2009, All Rights Reserved.
-
- At the discretion of the user of this library,
- this software may be licensed under the terms of the
- GNU Public License v3, a BSD-Style license, or the
- original HIDAPI license as outlined in the LICENSE.txt,
- LICENSE-gpl3.txt, LICENSE-bsd.txt, and LICENSE-orig.txt
- files located at the root of the source distribution.
- These files may also be found in the public source
- code repository located at:
-        http://github.com/signal11/hidapi .
-********************************************************/
-
-#define _GNU_SOURCE // needed for wcsdup() before glibc 2.10
-
-/* C */
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <locale.h>
-#include <errno.h>
-
-/* Unix */
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/utsname.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <wchar.h>
-
-/* GNU / LibUSB */
-#include "libusb.h"
-#include "iconv.h"
-
-#include "hidapi.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef DEBUG_PRINTF
-#define LOG(...) fprintf(stderr, __VA_ARGS__)
-#else
-#define LOG(...) do {} while (0)
-#endif
-
-
-/* Uncomment to enable the retrieval of Usage and Usage Page in
-hid_enumerate(). Warning, this is very invasive as it requires the detach
-and re-attach of the kernel driver. See comments inside hid_enumerate().
-Linux/libusb HIDAPI programs are encouraged to use the interface number
-instead to differentiate between interfaces on a composite HID device. */
-/*#define INVASIVE_GET_USAGE*/
-
-/* Linked List of input reports received from the device. */
-struct input_report {
-	uint8_t *data;
-	size_t len;
-	struct input_report *next;
-};
-
-
-struct hid_device_ {
-	/* Handle to the actual device. */
-	libusb_device_handle *device_handle;
-
-	/* Endpoint information */
-	int input_endpoint;
-	int output_endpoint;
-	int input_ep_max_packet_size;
-
-	/* The interface number of the HID */
-	int interface;
-
-	/* Indexes of Strings */
-	int manufacturer_index;
-	int product_index;
-	int serial_index;
-
-	/* Whether blocking reads are used */
-	int blocking; /* boolean */
-
-	/* Read thread objects */
-	pthread_t thread;
-	pthread_mutex_t mutex; /* Protects input_reports */
-	pthread_cond_t condition;
-	pthread_barrier_t barrier; /* Ensures correct startup sequence */
-	int shutdown_thread;
-	struct libusb_transfer *transfer;
-
-	/* List of received input reports. */
-	struct input_report *input_reports;
-};
-
-static int initialized = 0;
-
-uint16_t get_usb_code_for_current_locale(void);
-static int return_data(hid_device *dev, unsigned char *data, size_t length);
-
-static hid_device *new_hid_device(void)
-{
-	hid_device *dev = calloc(1, sizeof(hid_device));
-	dev->device_handle = NULL;
-	dev->input_endpoint = 0;
-	dev->output_endpoint = 0;
-	dev->input_ep_max_packet_size = 0;
-	dev->interface = 0;
-	dev->manufacturer_index = 0;
-	dev->product_index = 0;
-	dev->serial_index = 0;
-	dev->blocking = 1;
-	dev->shutdown_thread = 0;
-	dev->transfer = NULL;
-	dev->input_reports = NULL;
-
-	pthread_mutex_init(&dev->mutex, NULL);
-	pthread_cond_init(&dev->condition, NULL);
-	pthread_barrier_init(&dev->barrier, NULL, 2);
-
-	return dev;
-}
-
-static void free_hid_device(hid_device *dev)
-{
-	/* Clean up the thread objects */
-	pthread_barrier_destroy(&dev->barrier);
-	pthread_cond_destroy(&dev->condition);
-	pthread_mutex_destroy(&dev->mutex);
-
-	/* Free the device itself */
-	free(dev);
-}
-
-#if 0
-//TODO: Implement this funciton on Linux.
-static void register_error(hid_device *device, const char *op)
-{
-
-}
-#endif
-
-#ifdef INVASIVE_GET_USAGE
-/* Get bytes from a HID Report Descriptor.
-   Only call with a num_bytes of 0, 1, 2, or 4. */
-static uint32_t get_bytes(uint8_t *rpt, size_t len, size_t num_bytes, size_t cur)
-{
-	/* Return if there aren't enough bytes. */
-	if (cur + num_bytes >= len)
-		return 0;
-
-	if (num_bytes == 0)
-		return 0;
-	else if (num_bytes == 1) {
-		return rpt[cur+1];
-	}
-	else if (num_bytes == 2) {
-		return (rpt[cur+2] * 256 + rpt[cur+1]);
-	}
-	else if (num_bytes == 4) {
-		return (rpt[cur+4] * 0x01000000 +
-		        rpt[cur+3] * 0x00010000 +
-		        rpt[cur+2] * 0x00000100 +
-		        rpt[cur+1] * 0x00000001);
-	}
-	else
-		return 0;
-}
-
-/* Retrieves the device's Usage Page and Usage from the report
-   descriptor. The algorithm is simple, as it just returns the first
-   Usage and Usage Page that it finds in the descriptor.
-   The return value is 0 on success and -1 on failure. */
-static int get_usage(uint8_t *report_descriptor, size_t size,
-                     unsigned short *usage_page, unsigned short *usage)
-{
-	int i = 0;
-	int size_code;
-	int data_len, key_size;
-	int usage_found = 0, usage_page_found = 0;
-
-	while (i < size) {
-		int key = report_descriptor[i];
-		int key_cmd = key & 0xfc;
-
-		//printf("key: %02hhx\n", key);
-
-		if ((key & 0xf0) == 0xf0) {
-			/* This is a Long Item. The next byte contains the
-			   length of the data section (value) for this key.
-			   See the HID specification, version 1.11, section
-			   6.2.2.3, titled "Long Items." */
-			if (i+1 < size)
-				data_len = report_descriptor[i+1];
-			else
-				data_len = 0; /* malformed report */
-			key_size = 3;
-		}
-		else {
-			/* This is a Short Item. The bottom two bits of the
-			   key contain the size code for the data section
-			   (value) for this key.  Refer to the HID
-			   specification, version 1.11, section 6.2.2.2,
-			   titled "Short Items." */
-			size_code = key & 0x3;
-			switch (size_code) {
-			case 0:
-			case 1:
-			case 2:
-				data_len = size_code;
-				break;
-			case 3:
-				data_len = 4;
-				break;
-			default:
-				/* Can't ever happen since size_code is & 0x3 */
-				data_len = 0;
-				break;
-			};
-			key_size = 1;
-		}
-
-		if (key_cmd == 0x4) {
-			*usage_page  = get_bytes(report_descriptor, size, data_len, i);
-			usage_page_found = 1;
-			//printf("Usage Page: %x\n", (uint32_t)*usage_page);
-		}
-		if (key_cmd == 0x8) {
-			*usage = get_bytes(report_descriptor, size, data_len, i);
-			usage_found = 1;
-			//printf("Usage: %x\n", (uint32_t)*usage);
-		}
-
-		if (usage_page_found && usage_found)
-			return 0; /* success */
-
-		/* Skip over this key and it's associated data */
-		i += data_len + key_size;
-	}
-
-	return -1; /* failure */
-}
-#endif // INVASIVE_GET_USAGE
-
-
-/* Get the first language the device says it reports. This comes from
-   USB string #0. */
-static uint16_t get_first_language(libusb_device_handle *dev)
-{
-	uint16_t buf[32];
-	int len;
-
-	/* Get the string from libusb. */
-	len = libusb_get_string_descriptor(dev,
-			0x0, /* String ID */
-			0x0, /* Language */
-			(unsigned char*)buf,
-			sizeof(buf));
-	if (len < 4)
-		return 0x0;
-
-	return buf[1]; // First two bytes are len and descriptor type.
-}
-
-static int is_language_supported(libusb_device_handle *dev, uint16_t lang)
-{
-	uint16_t buf[32];
-	int len;
-	int i;
-
-	/* Get the string from libusb. */
-	len = libusb_get_string_descriptor(dev,
-			0x0, /* String ID */
-			0x0, /* Language */
-			(unsigned char*)buf,
-			sizeof(buf));
-	if (len < 4)
-		return 0x0;
-
-
-	len /= 2; /* language IDs are two-bytes each. */
-	/* Start at index 1 because there are two bytes of protocol data. */
-	for (i = 1; i < len; i++) {
-		if (buf[i] == lang)
-			return 1;
-	}
-
-	return 0;
-}
-
-
-/* This function returns a newly allocated wide string containing the USB
-   device string numbered by the index. The returned string must be freed
-   by using free(). */
-static wchar_t *get_usb_string(libusb_device_handle *dev, uint8_t idx)
-{
-	char buf[512];
-	unsigned int len;
-	wchar_t *str = NULL;
-	wchar_t wbuf[256];
-
-	/* iconv variables */
-	iconv_t ic;
-	size_t inbytes;
-	size_t outbytes;
-	size_t res;
-	char *inptr;
-	char *outptr;
-
-	/* Determine which language to use. */
-	uint16_t lang;
-	lang = get_usb_code_for_current_locale();
-	if (!is_language_supported(dev, lang))
-		lang = get_first_language(dev);
-
-	/* Get the string from libusb. */
-	len = libusb_get_string_descriptor(dev,
-			idx,
-			lang,
-			(unsigned char*)buf,
-			sizeof(buf));
-	if (len < 0)
-		return NULL;
-
-	buf[sizeof(buf)-1] = '\0';
-
-	if (len+1 < sizeof(buf))
-		buf[len+1] = '\0';
-
-	/* Initialize iconv. */
-	ic = iconv_open("UTF-32", "UTF-16");
-	if (ic == (iconv_t)-1)
-		return NULL;
-
-	/* Convert to UTF-32 (wchar_t on glibc systems).
-	   Skip the first character (2-bytes). */
-	inptr = buf+2;
-	inbytes = len-2;
-	outptr = (char*) wbuf;
-	outbytes = sizeof(wbuf);
-	res = iconv(ic, &inptr, &inbytes, &outptr, &outbytes);
-	if (res == (size_t)-1)
-		goto err;
-
-	/* Write the terminating NULL. */
-	wbuf[sizeof(wbuf)/sizeof(wbuf[0])-1] = 0x00000000;
-	if (outbytes >= sizeof(wbuf[0]))
-		*((wchar_t*)outptr) = 0x00000000;
-
-	/* Allocate and copy the string. */
-	str = wcsdup(wbuf+1);
-
-err:
-	iconv_close(ic);
-
-	return str;
-}
-
-static char *make_path(libusb_device *dev, int interface_number)
-{
-	char str[64];
-	snprintf(str, sizeof(str), "%04x:%04x:%02x",
-		libusb_get_bus_number(dev),
-		libusb_get_device_address(dev),
-		interface_number);
-	str[sizeof(str)-1] = '\0';
-
-	return strdup(str);
-}
-
-
-int HID_API_EXPORT hid_init(void)
-{
-	if (!initialized) {
-		if (libusb_init(NULL))
-			return -1;
-		initialized = 1;
-	}
-
-	return 0;
-}
-
-int HID_API_EXPORT hid_exit(void)
-{
-	if (initialized) {
-		libusb_exit(NULL);
-		initialized = 0;
-	}
-
-	return 0;
-}
-
-struct hid_device_info  HID_API_EXPORT *hid_enumerate(unsigned short vendor_id, unsigned short product_id)
-{
-	libusb_device **devs;
-	libusb_device *dev;
-	libusb_device_handle *handle;
-	ssize_t num_devs;
-	int i = 0;
-
-	struct hid_device_info *root = NULL; // return object
-	struct hid_device_info *cur_dev = NULL;
-
-	setlocale(LC_ALL,"");
-
-	if (!initialized)
-		hid_init();
-
-	num_devs = libusb_get_device_list(NULL, &devs);
-	if (num_devs < 0)
-		return NULL;
-	while ((dev = devs[i++]) != NULL) {
-		struct libusb_device_descriptor desc;
-		struct libusb_config_descriptor *conf_desc = NULL;
-		int j, k;
-		int interface_num = 0;
-
-		int res = libusb_get_device_descriptor(dev, &desc);
-		unsigned short dev_vid = desc.idVendor;
-		unsigned short dev_pid = desc.idProduct;
-
-		/* HID's are defined at the interface level. */
-		if (desc.bDeviceClass != LIBUSB_CLASS_PER_INTERFACE)
-			continue;
-
-		res = libusb_get_active_config_descriptor(dev, &conf_desc);
-		if (res < 0)
-			libusb_get_config_descriptor(dev, 0, &conf_desc);
-		if (conf_desc) {
-			for (j = 0; j < conf_desc->bNumInterfaces; j++) {
-				const struct libusb_interface *intf = &conf_desc->interface[j];
-				for (k = 0; k < intf->num_altsetting; k++) {
-					const struct libusb_interface_descriptor *intf_desc;
-					intf_desc = &intf->altsetting[k];
-					if (intf_desc->bInterfaceClass == LIBUSB_CLASS_HID) {
-						interface_num = intf_desc->bInterfaceNumber;
-
-						/* Check the VID/PID against the arguments */
-						if ((vendor_id == 0x0 && product_id == 0x0) ||
-						    (vendor_id == dev_vid && product_id == dev_pid)) {
-							struct hid_device_info *tmp;
-
-							/* VID/PID match. Create the record. */
-							tmp = calloc(1, sizeof(struct hid_device_info));
-							if (cur_dev) {
-								cur_dev->next = tmp;
-							}
-							else {
-								root = tmp;
-							}
-							cur_dev = tmp;
-
-							/* Fill out the record */
-							cur_dev->next = NULL;
-							cur_dev->path = make_path(dev, interface_num);
-
-							res = libusb_open(dev, &handle);
-
-							if (res >= 0) {
-								/* Serial Number */
-								if (desc.iSerialNumber > 0)
-									cur_dev->serial_number =
-										get_usb_string(handle, desc.iSerialNumber);
-
-								/* Manufacturer and Product strings */
-								if (desc.iManufacturer > 0)
-									cur_dev->manufacturer_string =
-										get_usb_string(handle, desc.iManufacturer);
-								if (desc.iProduct > 0)
-									cur_dev->product_string =
-										get_usb_string(handle, desc.iProduct);
-
-#ifdef INVASIVE_GET_USAGE
-							/*
-							This section is removed because it is too
-							invasive on the system. Getting a Usage Page
-							and Usage requires parsing the HID Report
-							descriptor. Getting a HID Report descriptor
-							involves claiming the interface. Claiming the
-							interface involves detaching the kernel driver.
-							Detaching the kernel driver is hard on the system
-							because it will unclaim interfaces (if another
-							app has them claimed) and the re-attachment of
-							the driver will sometimes change /dev entry names.
-							It is for these reasons that this section is
-							#if 0. For composite devices, use the interface
-							field in the hid_device_info struct to distinguish
-							between interfaces. */
-								int detached = 0;
-								unsigned char data[256];
-
-								/* Usage Page and Usage */
-								res = libusb_kernel_driver_active(handle, interface_num);
-								if (res == 1) {
-									res = libusb_detach_kernel_driver(handle, interface_num);
-									if (res < 0)
-										LOG("Couldn't detach kernel driver, even though a kernel driver was attached.");
-									else
-										detached = 1;
-								}
-								res = libusb_claim_interface(handle, interface_num);
-								if (res >= 0) {
-									/* Get the HID Report Descriptor. */
-									res = libusb_control_transfer(handle, LIBUSB_ENDPOINT_IN|LIBUSB_RECIPIENT_INTERFACE, LIBUSB_REQUEST_GET_DESCRIPTOR, (LIBUSB_DT_REPORT << 8)|interface_num, 0, data, sizeof(data), 5000);
-									if (res >= 0) {
-										unsigned short page=0, usage=0;
-										/* Parse the usage and usage page
-										   out of the report descriptor. */
-										get_usage(data, res,  &page, &usage);
-										cur_dev->usage_page = page;
-										cur_dev->usage = usage;
-									}
-									else
-										LOG("libusb_control_transfer() for getting the HID report failed with %d\n", res);
-
-									/* Release the interface */
-									res = libusb_release_interface(handle, interface_num);
-									if (res < 0)
-										LOG("Can't release the interface.\n");
-								}
-								else
-									LOG("Can't claim interface %d\n", res);
-
-								/* Re-attach kernel driver if necessary. */
-								if (detached) {
-									res = libusb_attach_kernel_driver(handle, interface_num);
-									if (res < 0)
-										LOG("Couldn't re-attach kernel driver.\n");
-								}
-#endif /*******************/
-
-								libusb_close(handle);
-							}
-							/* VID/PID */
-							cur_dev->vendor_id = dev_vid;
-							cur_dev->product_id = dev_pid;
-
-							/* Release Number */
-							cur_dev->release_number = desc.bcdDevice;
-
-							/* Interface Number */
-							cur_dev->interface_number = interface_num;
-						}
-					}
-				} /* altsettings */
-			} /* interfaces */
-			libusb_free_config_descriptor(conf_desc);
-		}
-	}
-
-	libusb_free_device_list(devs, 1);
-
-	return root;
-}
-
-void  HID_API_EXPORT hid_free_enumeration(struct hid_device_info *devs)
-{
-	struct hid_device_info *d = devs;
-	while (d) {
-		struct hid_device_info *next = d->next;
-		free(d->path);
-		free(d->serial_number);
-		free(d->manufacturer_string);
-		free(d->product_string);
-		free(d);
-		d = next;
-	}
-}
-
-hid_device * hid_open(unsigned short vendor_id, unsigned short product_id, wchar_t *serial_number)
-{
-	struct hid_device_info *devs, *cur_dev;
-	const char *path_to_open = NULL;
-	hid_device *handle = NULL;
-
-	devs = hid_enumerate(vendor_id, product_id);
-	cur_dev = devs;
-	while (cur_dev) {
-		if (cur_dev->vendor_id == vendor_id &&
-		    cur_dev->product_id == product_id) {
-			if (serial_number) {
-				if (wcscmp(serial_number, cur_dev->serial_number) == 0) {
-					path_to_open = cur_dev->path;
-					break;
-				}
-			}
-			else {
-				path_to_open = cur_dev->path;
-				break;
-			}
-		}
-		cur_dev = cur_dev->next;
-	}
-
-	if (path_to_open) {
-		/* Open the device */
-		handle = hid_open_path(path_to_open);
-	}
-
-	hid_free_enumeration(devs);
-
-	return handle;
-}
-
-static void read_callback(struct libusb_transfer *transfer)
-{
-	hid_device *dev = transfer->user_data;
-
-	if (transfer->status == LIBUSB_TRANSFER_COMPLETED) {
-
-		struct input_report *rpt = malloc(sizeof(*rpt));
-		rpt->data = malloc(transfer->actual_length);
-		memcpy(rpt->data, transfer->buffer, transfer->actual_length);
-		rpt->len = transfer->actual_length;
-		rpt->next = NULL;
-
-		pthread_mutex_lock(&dev->mutex);
-
-		/* Attach the new report object to the end of the list. */
-		if (dev->input_reports == NULL) {
-			/* The list is empty. Put it at the root. */
-			dev->input_reports = rpt;
-			pthread_cond_signal(&dev->condition);
-		}
-		else {
-			/* Find the end of the list and attach. */
-			struct input_report *cur = dev->input_reports;
-			int num_queued = 0;
-			while (cur->next != NULL) {
-				cur = cur->next;
-				num_queued++;
-			}
-			cur->next = rpt;
-
-			/* Pop one off if we've reached 30 in the queue. This
-			   way we don't grow forever if the user never reads
-			   anything from the device. */
-			if (num_queued > 30) {
-				return_data(dev, NULL, 0);
-			}
-		}
-		pthread_mutex_unlock(&dev->mutex);
-	}
-	else if (transfer->status == LIBUSB_TRANSFER_CANCELLED) {
-		dev->shutdown_thread = 1;
-		return;
-	}
-	else if (transfer->status == LIBUSB_TRANSFER_NO_DEVICE) {
-		dev->shutdown_thread = 1;
-		return;
-	}
-	else if (transfer->status == LIBUSB_TRANSFER_TIMED_OUT) {
-		//LOG("Timeout (normal)\n");
-	}
-	else {
-		LOG("Unknown transfer code: %d\n", transfer->status);
-	}
-
-	/* Re-submit the transfer object. */
-	libusb_submit_transfer(transfer);
-}
-
-
-static void *read_thread(void *param)
-{
-	hid_device *dev = param;
-	unsigned char *buf;
-	const size_t length = dev->input_ep_max_packet_size;
-
-	/* Set up the transfer object. */
-	buf = malloc(length);
-	dev->transfer = libusb_alloc_transfer(0);
-	libusb_fill_interrupt_transfer(dev->transfer,
-		dev->device_handle,
-		dev->input_endpoint,
-		buf,
-		length,
-		read_callback,
-		dev,
-		5000/*timeout*/);
-
-	/* Make the first submission. Further submissions are made
-	   from inside read_callback() */
-	libusb_submit_transfer(dev->transfer);
-
-	// Notify the main thread that the read thread is up and running.
-	pthread_barrier_wait(&dev->barrier);
-
-	/* Handle all the events. */
-	while (!dev->shutdown_thread) {
-		int res;
-		res = libusb_handle_events(NULL);
-		if (res < 0) {
-			/* There was an error. Break out of this loop. */
-			break;
-		}
-	}
-
-	/* Cancel any transfer that may be pending. This call will fail
-	   if no transfers are pending, but that's OK. */
-	if (libusb_cancel_transfer(dev->transfer) == 0) {
-		/* The transfer was cancelled, so wait for its completion. */
-		libusb_handle_events(NULL);
-	}
-
-	/* Now that the read thread is stopping, Wake any threads which are
-	   waiting on data (in hid_read_timeout()). Do this under a mutex to
-	   make sure that a thread which is about to go to sleep waiting on
-	   the condition acutally will go to sleep before the condition is
-	   signaled. */
-	pthread_mutex_lock(&dev->mutex);
-	pthread_cond_broadcast(&dev->condition);
-	pthread_mutex_unlock(&dev->mutex);
-
-	/* The dev->transfer->buffer and dev->transfer objects are cleaned up
-	   in hid_close(). They are not cleaned up here because this thread
-	   could end either due to a disconnect or due to a user
-	   call to hid_close(). In both cases the objects can be safely
-	   cleaned up after the call to pthread_join() (in hid_close()), but
-	   since hid_close() calls libusb_cancel_transfer(), on these objects,
-	   they can not be cleaned up here. */
-
-	return NULL;
-}
-
-
-hid_device * HID_API_EXPORT hid_open_path(const char *path)
-{
-	hid_device *dev = NULL;
-
-	dev = new_hid_device();
-
-	libusb_device **devs;
-	libusb_device *usb_dev;
-	ssize_t num_devs;
-	int res;
-	int d = 0;
-	int good_open = 0;
-
-	setlocale(LC_ALL,"");
-
-	if (!initialized)
-		hid_init();
-
-	num_devs = libusb_get_device_list(NULL, &devs);
-	while ((usb_dev = devs[d++]) != NULL) {
-		struct libusb_device_descriptor desc;
-		struct libusb_config_descriptor *conf_desc = NULL;
-		int i,j,k;
-		libusb_get_device_descriptor(usb_dev, &desc);
-
-		if (libusb_get_active_config_descriptor(usb_dev, &conf_desc) < 0)
-			continue;
-		for (j = 0; j < conf_desc->bNumInterfaces; j++) {
-			const struct libusb_interface *intf = &conf_desc->interface[j];
-			for (k = 0; k < intf->num_altsetting; k++) {
-				const struct libusb_interface_descriptor *intf_desc;
-				intf_desc = &intf->altsetting[k];
-				if (intf_desc->bInterfaceClass == LIBUSB_CLASS_HID) {
-					char *dev_path = make_path(usb_dev, intf_desc->bInterfaceNumber);
-					if (!strcmp(dev_path, path)) {
-						/* Matched Paths. Open this device */
-
-						// OPEN HERE //
-						res = libusb_open(usb_dev, &dev->device_handle);
-						if (res < 0) {
-							LOG("can't open device\n");
-							free(dev_path);
- 							break;
-						}
-						good_open = 1;
-
-						/* Detach the kernel driver, but only if the
-						   device is managed by the kernel */
-						if (libusb_kernel_driver_active(dev->device_handle, intf_desc->bInterfaceNumber) == 1) {
-							res = libusb_detach_kernel_driver(dev->device_handle, intf_desc->bInterfaceNumber);
-							if (res < 0) {
-								libusb_close(dev->device_handle);
-								LOG("Unable to detach Kernel Driver\n");
-								free(dev_path);
-								good_open = 0;
-								break;
-							}
-						}
-
-						res = libusb_claim_interface(dev->device_handle, intf_desc->bInterfaceNumber);
-						if (res < 0) {
-							LOG("can't claim interface %d: %d\n", intf_desc->bInterfaceNumber, res);
-							free(dev_path);
-							libusb_close(dev->device_handle);
-							good_open = 0;
-							break;
-						}
-
-						/* Store off the string descriptor indexes */
-						dev->manufacturer_index = desc.iManufacturer;
-						dev->product_index      = desc.iProduct;
-						dev->serial_index       = desc.iSerialNumber;
-
-						/* Store off the interface number */
-						dev->interface = intf_desc->bInterfaceNumber;
-
-						/* Find the INPUT and OUTPUT endpoints. An
-						   OUTPUT endpoint is not required. */
-						for (i = 0; i < intf_desc->bNumEndpoints; i++) {
-							const struct libusb_endpoint_descriptor *ep
-								= &intf_desc->endpoint[i];
-
-							/* Determine the type and direction of this
-							   endpoint. */
-							int is_interrupt =
-								(ep->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK)
-							      == LIBUSB_TRANSFER_TYPE_INTERRUPT;
-							int is_output =
-								(ep->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK)
-							      == LIBUSB_ENDPOINT_OUT;
-							int is_input =
-								(ep->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK)
-							      == LIBUSB_ENDPOINT_IN;
-
-							/* Decide whether to use it for intput or output. */
-							if (dev->input_endpoint == 0 &&
-							    is_interrupt && is_input) {
-								/* Use this endpoint for INPUT */
-								dev->input_endpoint = ep->bEndpointAddress;
-								dev->input_ep_max_packet_size = ep->wMaxPacketSize;
-							}
-							if (dev->output_endpoint == 0 &&
-							    is_interrupt && is_output) {
-								/* Use this endpoint for OUTPUT */
-								dev->output_endpoint = ep->bEndpointAddress;
-							}
-						}
-
-						pthread_create(&dev->thread, NULL, read_thread, dev);
-
-						// Wait here for the read thread to be initialized.
-						pthread_barrier_wait(&dev->barrier);
-
-					}
-					free(dev_path);
-				}
-			}
-		}
-		libusb_free_config_descriptor(conf_desc);
-
-	}
-
-	libusb_free_device_list(devs, 1);
-
-	// If we have a good handle, return it.
-	if (good_open) {
-		return dev;
-	}
-	else {
-		// Unable to open any devices.
-		free_hid_device(dev);
-		return NULL;
-	}
-}
-
-
-int HID_API_EXPORT hid_write(hid_device *dev, const unsigned char *data, size_t length)
-{
-	int res;
-	int report_number = data[0];
-	int skipped_report_id = 0;
-
-	if (report_number == 0x0) {
-		data++;
-		length--;
-		skipped_report_id = 1;
-	}
-
-
-	if (dev->output_endpoint <= 0) {
-		/* No interrput out endpoint. Use the Control Endpoint */
-		res = libusb_control_transfer(dev->device_handle,
-			LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_OUT,
-			0x09/*HID Set_Report*/,
-			(2/*HID output*/ << 8) | report_number,
-			dev->interface,
-			(unsigned char *)data, length,
-			1000/*timeout millis*/);
-
-		if (res < 0)
-			return -1;
-
-		if (skipped_report_id)
-			length++;
-
-		return length;
-	}
-	else {
-		/* Use the interrupt out endpoint */
-		int actual_length;
-		res = libusb_interrupt_transfer(dev->device_handle,
-			dev->output_endpoint,
-			(unsigned char*)data,
-			length,
-			&actual_length, 1000);
-
-		if (res < 0)
-			return -1;
-
-		if (skipped_report_id)
-			actual_length++;
-
-		return actual_length;
-	}
-}
-
-/* Helper function, to simplify hid_read().
-   This should be called with dev->mutex locked. */
-static int return_data(hid_device *dev, unsigned char *data, size_t length)
-{
-	/* Copy the data out of the linked list item (rpt) into the
-	   return buffer (data), and delete the liked list item. */
-	struct input_report *rpt = dev->input_reports;
-	size_t len = (length < rpt->len)? length: rpt->len;
-	if (len > 0)
-		memcpy(data, rpt->data, len);
-	dev->input_reports = rpt->next;
-	free(rpt->data);
-	free(rpt);
-	return len;
-}
-
-static void cleanup_mutex(void *param)
-{
-	hid_device *dev = param;
-	pthread_mutex_unlock(&dev->mutex);
-}
-
-
-int HID_API_EXPORT hid_read_timeout(hid_device *dev, unsigned char *data, size_t length, int milliseconds)
-{
-	int bytes_read = -1;
-
-#if 0
-	int transferred;
-	int res = libusb_interrupt_transfer(dev->device_handle, dev->input_endpoint, data, length, &transferred, 5000);
-	LOG("transferred: %d\n", transferred);
-	return transferred;
-#endif
-
-	pthread_mutex_lock(&dev->mutex);
-	pthread_cleanup_push(&cleanup_mutex, dev);
-
-	/* There's an input report queued up. Return it. */
-	if (dev->input_reports) {
-		/* Return the first one */
-		bytes_read = return_data(dev, data, length);
-		goto ret;
-	}
-
-	if (dev->shutdown_thread) {
-		/* This means the device has been disconnected.
-		   An error code of -1 should be returned. */
-		bytes_read = -1;
-		goto ret;
-	}
-
-	if (milliseconds == -1) {
-		/* Blocking */
-		while (!dev->input_reports && !dev->shutdown_thread) {
-			pthread_cond_wait(&dev->condition, &dev->mutex);
-		}
-		if (dev->input_reports) {
-			bytes_read = return_data(dev, data, length);
-		}
-	}
-	else if (milliseconds > 0) {
-		/* Non-blocking, but called with timeout. */
-		int res;
-		struct timespec ts;
-		clock_gettime(CLOCK_REALTIME, &ts);
-		ts.tv_sec += milliseconds / 1000;
-		ts.tv_nsec += (milliseconds % 1000) * 1000000;
-		if (ts.tv_nsec >= 1000000000L) {
-			ts.tv_sec++;
-			ts.tv_nsec -= 1000000000L;
-		}
-
-		while (!dev->input_reports && !dev->shutdown_thread) {
-			res = pthread_cond_timedwait(&dev->condition, &dev->mutex, &ts);
-			if (res == 0) {
-				if (dev->input_reports) {
-					bytes_read = return_data(dev, data, length);
-					break;
-				}
-
-				/* If we're here, there was a spurious wake up
-				   or the read thread was shutdown. Run the
-				   loop again (ie: don't break). */
-			}
-			else if (res == ETIMEDOUT) {
-				/* Timed out. */
-				bytes_read = 0;
-				break;
-			}
-			else {
-				/* Error. */
-				bytes_read = -1;
-				break;
-			}
-		}
-	}
-	else {
-		/* Purely non-blocking */
-		bytes_read = 0;
-	}
-
-ret:
-	pthread_mutex_unlock(&dev->mutex);
-	pthread_cleanup_pop(0);
-
-	return bytes_read;
-}
-
-int HID_API_EXPORT hid_read(hid_device *dev, unsigned char *data, size_t length)
-{
-	return hid_read_timeout(dev, data, length, dev->blocking ? -1 : 0);
-}
-
-int HID_API_EXPORT hid_set_nonblocking(hid_device *dev, int nonblock)
-{
-	dev->blocking = !nonblock;
-
-	return 0;
-}
-
-
-int HID_API_EXPORT hid_send_feature_report(hid_device *dev, const unsigned char *data, size_t length)
-{
-	int res = -1;
-	int skipped_report_id = 0;
-	int report_number = data[0];
-
-	if (report_number == 0x0) {
-		data++;
-		length--;
-		skipped_report_id = 1;
-	}
-
-	res = libusb_control_transfer(dev->device_handle,
-		LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_OUT,
-		0x09/*HID set_report*/,
-		(3/*HID feature*/ << 8) | report_number,
-		dev->interface,
-		(unsigned char *)data, length,
-		1000/*timeout millis*/);
-
-	if (res < 0)
-		return -1;
-
-	/* Account for the report ID */
-	if (skipped_report_id)
-		length++;
-
-	return length;
-}
-
-int HID_API_EXPORT hid_get_feature_report(hid_device *dev, unsigned char *data, size_t length)
-{
-	int res = -1;
-	int skipped_report_id = 0;
-	int report_number = data[0];
-
-	if (report_number == 0x0) {
-		/* Offset the return buffer by 1, so that the report ID
-		   will remain in byte 0. */
-		data++;
-		length--;
-		skipped_report_id = 1;
-	}
-	res = libusb_control_transfer(dev->device_handle,
-		LIBUSB_REQUEST_TYPE_CLASS|LIBUSB_RECIPIENT_INTERFACE|LIBUSB_ENDPOINT_IN,
-		0x01/*HID get_report*/,
-		(3/*HID feature*/ << 8) | report_number,
-		dev->interface,
-		(unsigned char *)data, length,
-		1000/*timeout millis*/);
-
-	if (res < 0)
-		return -1;
-
-	if (skipped_report_id)
-		res++;
-
-	return res;
-}
-
-
-void HID_API_EXPORT hid_close(hid_device *dev)
-{
-	if (!dev)
-		return;
-
-	/* Cause read_thread() to stop. */
-	dev->shutdown_thread = 1;
-	libusb_cancel_transfer(dev->transfer);
-
-	/* Wait for read_thread() to end. */
-	pthread_join(dev->thread, NULL);
-
-	/* Clean up the Transfer objects allocated in read_thread(). */
-	free(dev->transfer->buffer);
-	libusb_free_transfer(dev->transfer);
-
-	/* release the interface */
-	libusb_release_interface(dev->device_handle, dev->interface);
-
-	/* Close the handle */
-	libusb_close(dev->device_handle);
-
-	/* Clear out the queue of received reports. */
-	pthread_mutex_lock(&dev->mutex);
-	while (dev->input_reports) {
-		return_data(dev, NULL, 0);
-	}
-	pthread_mutex_unlock(&dev->mutex);
-
-	free_hid_device(dev);
-}
-
-
-int HID_API_EXPORT_CALL hid_get_manufacturer_string(hid_device *dev, wchar_t *string, size_t maxlen)
-{
-	return hid_get_indexed_string(dev, dev->manufacturer_index, string, maxlen);
-}
-
-int HID_API_EXPORT_CALL hid_get_product_string(hid_device *dev, wchar_t *string, size_t maxlen)
-{
-	return hid_get_indexed_string(dev, dev->product_index, string, maxlen);
-}
-
-int HID_API_EXPORT_CALL hid_get_serial_number_string(hid_device *dev, wchar_t *string, size_t maxlen)
-{
-	return hid_get_indexed_string(dev, dev->serial_index, string, maxlen);
-}
-
-int HID_API_EXPORT_CALL hid_get_indexed_string(hid_device *dev, int string_index, wchar_t *string, size_t maxlen)
-{
-	wchar_t *str;
-
-	str = get_usb_string(dev->device_handle, string_index);
-	if (str) {
-		wcsncpy(string, str, maxlen);
-		string[maxlen-1] = L'\0';
-		free(str);
-		return 0;
-	}
-	else
-		return -1;
-}
-
-
-HID_API_EXPORT const wchar_t * HID_API_CALL  hid_error(hid_device *dev)
-{
-	return NULL;
-}
-
-
-struct lang_map_entry {
-	const char *name;
-	const char *string_code;
-	uint16_t usb_code;
-};
-
-#define LANG(name,code,usb_code) { name, code, usb_code }
-static struct lang_map_entry lang_map[] = {
-	LANG("Afrikaans", "af", 0x0436),
-	LANG("Albanian", "sq", 0x041C),
-	LANG("Arabic - United Arab Emirates", "ar_ae", 0x3801),
-	LANG("Arabic - Bahrain", "ar_bh", 0x3C01),
-	LANG("Arabic - Algeria", "ar_dz", 0x1401),
-	LANG("Arabic - Egypt", "ar_eg", 0x0C01),
-	LANG("Arabic - Iraq", "ar_iq", 0x0801),
-	LANG("Arabic - Jordan", "ar_jo", 0x2C01),
-	LANG("Arabic - Kuwait", "ar_kw", 0x3401),
-	LANG("Arabic - Lebanon", "ar_lb", 0x3001),
-	LANG("Arabic - Libya", "ar_ly", 0x1001),
-	LANG("Arabic - Morocco", "ar_ma", 0x1801),
-	LANG("Arabic - Oman", "ar_om", 0x2001),
-	LANG("Arabic - Qatar", "ar_qa", 0x4001),
-	LANG("Arabic - Saudi Arabia", "ar_sa", 0x0401),
-	LANG("Arabic - Syria", "ar_sy", 0x2801),
-	LANG("Arabic - Tunisia", "ar_tn", 0x1C01),
-	LANG("Arabic - Yemen", "ar_ye", 0x2401),
-	LANG("Armenian", "hy", 0x042B),
-	LANG("Azeri - Latin", "az_az", 0x042C),
-	LANG("Azeri - Cyrillic", "az_az", 0x082C),
-	LANG("Basque", "eu", 0x042D),
-	LANG("Belarusian", "be", 0x0423),
-	LANG("Bulgarian", "bg", 0x0402),
-	LANG("Catalan", "ca", 0x0403),
-	LANG("Chinese - China", "zh_cn", 0x0804),
-	LANG("Chinese - Hong Kong SAR", "zh_hk", 0x0C04),
-	LANG("Chinese - Macau SAR", "zh_mo", 0x1404),
-	LANG("Chinese - Singapore", "zh_sg", 0x1004),
-	LANG("Chinese - Taiwan", "zh_tw", 0x0404),
-	LANG("Croatian", "hr", 0x041A),
-	LANG("Czech", "cs", 0x0405),
-	LANG("Danish", "da", 0x0406),
-	LANG("Dutch - Netherlands", "nl_nl", 0x0413),
-	LANG("Dutch - Belgium", "nl_be", 0x0813),
-	LANG("English - Australia", "en_au", 0x0C09),
-	LANG("English - Belize", "en_bz", 0x2809),
-	LANG("English - Canada", "en_ca", 0x1009),
-	LANG("English - Caribbean", "en_cb", 0x2409),
-	LANG("English - Ireland", "en_ie", 0x1809),
-	LANG("English - Jamaica", "en_jm", 0x2009),
-	LANG("English - New Zealand", "en_nz", 0x1409),
-	LANG("English - Phillippines", "en_ph", 0x3409),
-	LANG("English - Southern Africa", "en_za", 0x1C09),
-	LANG("English - Trinidad", "en_tt", 0x2C09),
-	LANG("English - Great Britain", "en_gb", 0x0809),
-	LANG("English - United States", "en_us", 0x0409),
-	LANG("Estonian", "et", 0x0425),
-	LANG("Farsi", "fa", 0x0429),
-	LANG("Finnish", "fi", 0x040B),
-	LANG("Faroese", "fo", 0x0438),
-	LANG("French - France", "fr_fr", 0x040C),
-	LANG("French - Belgium", "fr_be", 0x080C),
-	LANG("French - Canada", "fr_ca", 0x0C0C),
-	LANG("French - Luxembourg", "fr_lu", 0x140C),
-	LANG("French - Switzerland", "fr_ch", 0x100C),
-	LANG("Gaelic - Ireland", "gd_ie", 0x083C),
-	LANG("Gaelic - Scotland", "gd", 0x043C),
-	LANG("German - Germany", "de_de", 0x0407),
-	LANG("German - Austria", "de_at", 0x0C07),
-	LANG("German - Liechtenstein", "de_li", 0x1407),
-	LANG("German - Luxembourg", "de_lu", 0x1007),
-	LANG("German - Switzerland", "de_ch", 0x0807),
-	LANG("Greek", "el", 0x0408),
-	LANG("Hebrew", "he", 0x040D),
-	LANG("Hindi", "hi", 0x0439),
-	LANG("Hungarian", "hu", 0x040E),
-	LANG("Icelandic", "is", 0x040F),
-	LANG("Indonesian", "id", 0x0421),
-	LANG("Italian - Italy", "it_it", 0x0410),
-	LANG("Italian - Switzerland", "it_ch", 0x0810),
-	LANG("Japanese", "ja", 0x0411),
-	LANG("Korean", "ko", 0x0412),
-	LANG("Latvian", "lv", 0x0426),
-	LANG("Lithuanian", "lt", 0x0427),
-	LANG("F.Y.R.O. Macedonia", "mk", 0x042F),
-	LANG("Malay - Malaysia", "ms_my", 0x043E),
-	LANG("Malay – Brunei", "ms_bn", 0x083E),
-	LANG("Maltese", "mt", 0x043A),
-	LANG("Marathi", "mr", 0x044E),
-	LANG("Norwegian - Bokml", "no_no", 0x0414),
-	LANG("Norwegian - Nynorsk", "no_no", 0x0814),
-	LANG("Polish", "pl", 0x0415),
-	LANG("Portuguese - Portugal", "pt_pt", 0x0816),
-	LANG("Portuguese - Brazil", "pt_br", 0x0416),
-	LANG("Raeto-Romance", "rm", 0x0417),
-	LANG("Romanian - Romania", "ro", 0x0418),
-	LANG("Romanian - Republic of Moldova", "ro_mo", 0x0818),
-	LANG("Russian", "ru", 0x0419),
-	LANG("Russian - Republic of Moldova", "ru_mo", 0x0819),
-	LANG("Sanskrit", "sa", 0x044F),
-	LANG("Serbian - Cyrillic", "sr_sp", 0x0C1A),
-	LANG("Serbian - Latin", "sr_sp", 0x081A),
-	LANG("Setsuana", "tn", 0x0432),
-	LANG("Slovenian", "sl", 0x0424),
-	LANG("Slovak", "sk", 0x041B),
-	LANG("Sorbian", "sb", 0x042E),
-	LANG("Spanish - Spain (Traditional)", "es_es", 0x040A),
-	LANG("Spanish - Argentina", "es_ar", 0x2C0A),
-	LANG("Spanish - Bolivia", "es_bo", 0x400A),
-	LANG("Spanish - Chile", "es_cl", 0x340A),
-	LANG("Spanish - Colombia", "es_co", 0x240A),
-	LANG("Spanish - Costa Rica", "es_cr", 0x140A),
-	LANG("Spanish - Dominican Republic", "es_do", 0x1C0A),
-	LANG("Spanish - Ecuador", "es_ec", 0x300A),
-	LANG("Spanish - Guatemala", "es_gt", 0x100A),
-	LANG("Spanish - Honduras", "es_hn", 0x480A),
-	LANG("Spanish - Mexico", "es_mx", 0x080A),
-	LANG("Spanish - Nicaragua", "es_ni", 0x4C0A),
-	LANG("Spanish - Panama", "es_pa", 0x180A),
-	LANG("Spanish - Peru", "es_pe", 0x280A),
-	LANG("Spanish - Puerto Rico", "es_pr", 0x500A),
-	LANG("Spanish - Paraguay", "es_py", 0x3C0A),
-	LANG("Spanish - El Salvador", "es_sv", 0x440A),
-	LANG("Spanish - Uruguay", "es_uy", 0x380A),
-	LANG("Spanish - Venezuela", "es_ve", 0x200A),
-	LANG("Southern Sotho", "st", 0x0430),
-	LANG("Swahili", "sw", 0x0441),
-	LANG("Swedish - Sweden", "sv_se", 0x041D),
-	LANG("Swedish - Finland", "sv_fi", 0x081D),
-	LANG("Tamil", "ta", 0x0449),
-	LANG("Tatar", "tt", 0X0444),
-	LANG("Thai", "th", 0x041E),
-	LANG("Turkish", "tr", 0x041F),
-	LANG("Tsonga", "ts", 0x0431),
-	LANG("Ukrainian", "uk", 0x0422),
-	LANG("Urdu", "ur", 0x0420),
-	LANG("Uzbek - Cyrillic", "uz_uz", 0x0843),
-	LANG("Uzbek – Latin", "uz_uz", 0x0443),
-	LANG("Vietnamese", "vi", 0x042A),
-	LANG("Xhosa", "xh", 0x0434),
-	LANG("Yiddish", "yi", 0x043D),
-	LANG("Zulu", "zu", 0x0435),
-	LANG(NULL, NULL, 0x0),
-};
-
-uint16_t get_usb_code_for_current_locale(void)
-{
-	char *locale;
-	char search_string[64];
-	char *ptr;
-
-	/* Get the current locale. */
-	locale = setlocale(0, NULL);
-	if (!locale)
-		return 0x0;
-
-	/* Make a copy of the current locale string. */
-	strncpy(search_string, locale, sizeof(search_string));
-	search_string[sizeof(search_string)-1] = '\0';
-
-	/* Chop off the encoding part, and make it lower case. */
-	ptr = search_string;
-	while (*ptr) {
-		*ptr = tolower(*ptr);
-		if (*ptr == '.') {
-			*ptr = '\0';
-			break;
-		}
-		ptr++;
-	}
-
-	/* Find the entry which matches the string code of our locale. */
-	struct lang_map_entry *lang = lang_map;
-	while (lang->string_code) {
-		if (!strcmp(lang->string_code, search_string)) {
-			return lang->usb_code;
-		}
-		lang++;
-	}
-
-	/* There was no match. Find with just the language only. */
-	/* Chop off the variant. Chop it off at the '_'. */
-	ptr = search_string;
-	while (*ptr) {
-		*ptr = tolower(*ptr);
-		if (*ptr == '_') {
-			*ptr = '\0';
-			break;
-		}
-		ptr++;
-	}
-
-#if 0 // TODO: Do we need this?
-	/* Find the entry which matches the string code of our language. */
-	lang = lang_map;
-	while (lang->string_code) {
-		if (!strcmp(lang->string_code, search_string)) {
-			return lang->usb_code;
-		}
-		lang++;
-	}
-#endif
-
-	/* Found nothing. */
-	return 0x0;
-}
-
-#ifdef __cplusplus
-}
-#endif