Imported Upstream version 2.1.8.20120507upstream/2.1.8.20120507

3 files changed, 670 insertions, 1 deletions

diff --git a/linux/cusblinux-1.0.c b/linux/cusblinux-1.0.c
new file mode 100644
index 0000000..4b43b1d
--- /dev/null
+++ b/linux/cusblinux-1.0.c
@@ -0,0 +1,659 @@
+/*
+ *  cusblinux.cpp
+ *
+ *  Filled in by Daniel Risacher on 6/21/05
+ *  Filled in more by Patrick McNeil on 6/27/05
+ *  Copyright 2005 Phidgets Inc. All rights reserved.
+ *
+ */
+
+#include "stdafx.h"
+#include "cusb.h"
+#include <libusb-1.0/libusb.h>
+
+int CUSBCloseHandle(CPhidgetHandle phid) {
+	int ret = 0;
+	int result = EPHIDGET_OK;
+	
+	if (!phid)
+		return EPHIDGET_INVALIDARG;
+
+	CPhidget_clearStatusFlag(&phid->status, PHIDGET_ATTACHED_FLAG, &phid->lock);
+	
+	if (phid->deviceHandle == NULL)
+		return EPHIDGET_NOTATTACHED;
+
+	CThread_join(&phid->readThread);
+		
+	if((ret = libusb_release_interface((libusb_device_handle *) phid->deviceHandle, phid->deviceDef->pdd_iid)) != 0)
+	{
+		switch(ret)
+		{
+			case LIBUSB_ERROR_NO_DEVICE:
+				//usb_release_interface called after the device was unplugged
+				LOG(PHIDGET_LOG_WARNING, "libusb_release_interface called on unplugged device.");
+				break;
+			default:
+				LOG(PHIDGET_LOG_ERROR, "libusb_release_interface failed with error code: %d", ret);
+		}
+	}
+	
+	//if we notice that PHIDGET_USB_ERROR_FLAG is set, then reset this device before closing
+	//this gives us a better chance of getting it back if something has gone wrong.
+	if(CPhidget_statusFlagIsSet(phid->status, PHIDGET_USB_ERROR_FLAG))
+	{
+		LOG(PHIDGET_LOG_WARNING,"PHIDGET_USB_ERROR_FLAG is set - resetting device.");
+		if((ret = libusb_reset_device((libusb_device_handle *) phid->deviceHandle)) != 0)
+		{
+			LOG(PHIDGET_LOG_ERROR, "libusb_reset_device failed with error code: %d", ret);
+			result = EPHIDGET_UNEXPECTED;
+		}
+	}
+	
+	libusb_close((libusb_device_handle *) phid->deviceHandle);
+	
+	phid->deviceHandle = NULL;
+	
+	return result;
+}
+
+int CUSBSendPacket(CPhidgetHandle phid, unsigned char *buffer) {
+	int BytesWritten = 0, ret;
+
+	if (!phid)
+		return EPHIDGET_INVALIDARG;
+		
+	if (!CPhidget_statusFlagIsSet(phid->status, PHIDGET_ATTACHED_FLAG)
+		&& !CPhidget_statusFlagIsSet(phid->status, PHIDGET_ATTACHING_FLAG))
+		return EPHIDGET_NOTATTACHED;
+		
+	if (phid->deviceHandle == NULL)
+	{
+		LOG(PHIDGET_LOG_WARNING,"Handle for writing is not valid");
+		return EPHIDGET_UNEXPECTED;
+	}
+		
+	if(phid->interruptOutEndpoint)
+	{
+		ret = libusb_interrupt_transfer((libusb_device_handle *)phid->deviceHandle, 
+										   LIBUSB_ENDPOINT_OUT | phid->deviceDef->pdd_iid+1, 
+										   (char *)buffer, 
+										   phid->outputReportByteLength, /* size */
+										   &BytesWritten,
+										   500); /* FIXME? timeout */
+	}
+	else
+	{
+		BytesWritten = libusb_control_transfer((libusb_device_handle *)phid->deviceHandle, 
+						LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_INTERFACE,
+						LIBUSB_REQUEST_SET_CONFIGURATION,
+						0x0200, /* value */
+						phid->deviceDef->pdd_iid, /* index*/
+						(char *)buffer, 
+						phid->outputReportByteLength, /* size */
+						500); /* FIXME? timeout */
+		ret = BytesWritten;
+	}
+					
+	if(ret < 0)
+	{
+		switch(ret)
+		{
+			case LIBUSB_ERROR_TIMEOUT: //important case?
+					return EPHIDGET_TIMEOUT;
+			case LIBUSB_ERROR_NO_DEVICE:
+				//device is gone - unplugged.
+				LOG(PHIDGET_LOG_INFO, "Device was unplugged - detach.");
+				return EPHIDGET_NOTATTACHED;
+			default:
+				LOG(PHIDGET_LOG_ERROR, "libusb_control_msg failed with error code: %d", ret);
+				return EPHIDGET_UNEXPECTED;
+		}
+	}
+
+	if (BytesWritten != phid->outputReportByteLength)
+	{
+		LOG(PHIDGET_LOG_WARNING,"Failure in CUSBSendPacket - Report Length"
+			": %d, bytes written: %d",
+		    (int)phid->outputReportByteLength, (int)BytesWritten);
+		return EPHIDGET_UNEXPECTED;
+	}
+	
+	return EPHIDGET_OK;
+}
+
+int CUSBSetLabel(CPhidgetHandle phid, char *buffer) {
+	int BytesWritten = 0;
+	int size = buffer[0];
+	
+	if(size>22) return EPHIDGET_INVALID;
+	
+	if (!phid)
+		return EPHIDGET_INVALIDARG;
+		
+	if (!CPhidget_statusFlagIsSet(phid->status, PHIDGET_ATTACHED_FLAG)
+		&& !CPhidget_statusFlagIsSet(phid->status, PHIDGET_ATTACHING_FLAG))
+		return EPHIDGET_NOTATTACHED;
+		
+	if (phid->deviceHandle == NULL)
+	{
+		LOG(PHIDGET_LOG_WARNING,"Handle for writing is not valid");
+		return EPHIDGET_UNEXPECTED;
+	}
+		
+	BytesWritten = libusb_control_transfer((libusb_device_handle *)phid->deviceHandle, 
+					LIBUSB_ENDPOINT_OUT | LIBUSB_REQUEST_TYPE_STANDARD | LIBUSB_RECIPIENT_DEVICE,
+					LIBUSB_REQUEST_SET_DESCRIPTOR,
+					0x0304, /* value */
+					0x0409, /* index*/
+					(char *)buffer, 
+					size, /* size */
+					500); /* FIXME? timeout */
+					
+	if(BytesWritten < 0)
+	{
+		switch(BytesWritten)
+		{
+		case LIBUSB_ERROR_TIMEOUT: //important case?	
+		default:
+			LOG(PHIDGET_LOG_INFO, "usb_control_msg failed with error code: %d", BytesWritten);
+			return EPHIDGET_UNSUPPORTED;
+		}
+	}
+
+	if (BytesWritten != size)
+	{
+		LOG(PHIDGET_LOG_WARNING,"Failure in CUSBSetLabel - Report Length"
+			": %d, bytes written: %d",
+		    size, (int)BytesWritten);
+		return EPHIDGET_UNEXPECTED;
+	}
+	
+	return EPHIDGET_OK;
+}
+
+/* Buffer should be at least 8 bytes long */
+int CUSBReadPacket(CPhidgetHandle phid, unsigned char *buffer) {
+	int BytesRead = 0, ret;
+	
+	if (!phid)
+		return EPHIDGET_INVALIDARG;
+		
+	if (!CPhidget_statusFlagIsSet(phid->status, PHIDGET_ATTACHED_FLAG)
+		&& !CPhidget_statusFlagIsSet(phid->status, PHIDGET_ATTACHING_FLAG))
+		return EPHIDGET_NOTATTACHED;
+		
+	if (phid->deviceHandle == NULL)
+	{
+		LOG(PHIDGET_LOG_WARNING,"Handle for writing is not valid");
+		return EPHIDGET_UNEXPECTED;
+	}
+	
+	ret = libusb_interrupt_transfer((libusb_device_handle *)phid->deviceHandle, 
+				LIBUSB_ENDPOINT_IN | phid->deviceDef->pdd_iid+1, 
+				(char *)buffer, 
+				phid->inputReportByteLength,
+				&BytesRead,
+				500);
+				
+	if (ret != 0)
+	{
+		switch(ret)
+		{
+			// A timeout occured, but we'll just try again
+			case LIBUSB_ERROR_TIMEOUT:
+				LOG(PHIDGET_LOG_VERBOSE, "libusb_interrupt_transfer timeout");
+				return EPHIDGET_TIMEOUT;
+			case LIBUSB_ERROR_BUSY:
+				//This happens when someone else calls claim_interface on this interface (a manager for ex.) - basically just wait until they release it.
+				//This will happen if an open occurs in another app which (for some reason) can steal the interface from this one.
+				LOG(PHIDGET_LOG_INFO, "Device is busy on Read - try again.");
+				return EPHIDGET_TRYAGAIN;
+			case LIBUSB_ERROR_NO_DEVICE:
+				//device is gone - unplugged.
+				LOG(PHIDGET_LOG_INFO, "Device was unplugged - detach.");
+				return EPHIDGET_NOTATTACHED;
+			case LIBUSB_ERROR_PIPE:
+			case LIBUSB_ERROR_OVERFLOW:
+			default:
+				LOG(PHIDGET_LOG_ERROR, "libusb_interrupt_transfer returned: %d \"%s\"", ret);
+				goto tryagain;
+		}
+	}
+
+	if (BytesRead != phid->inputReportByteLength)
+	{
+		//Generally means the device was unplugged, but can mean that there is not enough Interrupt bandwidth
+		//We keep trying and we'll get data, just not all data
+		LOG(PHIDGET_LOG_WARNING,"Failure in CUSBReadPacket - Report Length"
+			": %d, bytes read: %d. Probably trying to use too many Phidgets at once, and some data is being lost.",
+		    (int)phid->inputReportByteLength, (int)BytesRead);
+		goto tryagain;
+	}
+	
+	phid->tryAgainCounter = 0;
+	return EPHIDGET_OK;
+	
+	//if we see too many tryagains in a row, then we assume something has actually gone wrong and reset the device
+tryagain:
+	phid->tryAgainCounter++;
+	if(phid->tryAgainCounter > 30) //this will be hit in < 1 second for all devices
+	{
+		LOG(PHIDGET_LOG_ERROR, "CUSBReadPacket returned EPHIDGET_TRYAGAIN too many times in a row - reset device.");
+		phid->tryAgainCounter = 0;
+		return EPHIDGET_UNEXPECTED;
+	}
+	return EPHIDGET_TRYAGAIN;
+}
+
+static int getLabelString(CPhidgetHandle phid, struct libusb_device_handle *handle)
+{	
+	int len = 0;
+	char labelBuf[22];
+	memset(labelBuf, 0, sizeof(labelBuf));
+	
+	//Note that this returns the whole descriptor, including the length and type bytes
+	len = libusb_get_string_descriptor(handle, 4, 0, (char *)labelBuf, 22);
+	
+	if(len < 0)
+	{
+		switch(len)
+		{
+			case LIBUSB_ERROR_TIMEOUT: //important case?
+			default:
+				LOG(PHIDGET_LOG_INFO, "libusb_get_string_descriptor failed in CUSBGetDeviceCapabilities with error code: %d while reading label\
+					- this probably just means the device doesn't support labels, so this is fine.", len);
+		}
+		phid->label[0]='\0';
+		return EPHIDGET_OK;
+	}
+	else
+		return decodeLabelString(labelBuf, phid->label, phid->serialNumber);
+}
+
+int CUSBRefreshLabelString(CPhidgetHandle phid)
+{
+	return getLabelString(phid, (struct libusb_device_handle *)phid->deviceHandle);
+}
+
+int CUSBGetDeviceCapabilities(CPhidgetHandle phid, struct libusb_device *dev, struct libusb_device_handle *udev) {
+	unsigned char buf[255];
+	int len = 0, i = 0, j, ret;
+	const struct libusb_interface_descriptor *interfaceDesc;
+	struct libusb_config_descriptor *configDesc = NULL;
+	
+	memset(buf, 0, sizeof(buf));
+	
+	//Get config descriptor
+	if((ret = libusb_get_active_config_descriptor(dev, &configDesc)) == 0)
+	{
+		interfaceDesc = NULL;
+		
+		//Find the interface Descriptor
+		for(i=0; i<configDesc->bNumInterfaces; i++)
+		{
+			for(j=0; j<configDesc->interface[i].num_altsetting; j++)
+			{
+				if(configDesc->interface[i].altsetting[j].bInterfaceNumber == phid->deviceDef->pdd_iid)
+				{
+					interfaceDesc = &configDesc->interface[i].altsetting[j];
+					break;
+				}
+			}
+		}
+		
+		if(interfaceDesc == NULL)
+		{
+			LOG(PHIDGET_LOG_ERROR, "Couldn't find interface descriptor!");
+			ret = EPHIDGET_UNEXPECTED;
+			goto done;
+		}
+		
+		if(interfaceDesc->bNumEndpoints == 2)
+		{
+			LOG(PHIDGET_LOG_INFO, "Using Interrupt OUT Endpoint for Host->Device communication.");
+			phid->interruptOutEndpoint = PTRUE;
+		}
+		else
+		{
+			LOG(PHIDGET_LOG_INFO, "Using Control Endpoint for Host->Device communication.");
+			phid->interruptOutEndpoint = PFALSE;
+		}
+	}
+	else
+	{
+		LOG(PHIDGET_LOG_ERROR, "libusb_get_active_config_descriptor failed in CUSBGetDeviceCapabilities with error code: %d", ret);
+		ret = EPHIDGET_UNEXPECTED;
+		goto done;
+	}
+	
+	//Get a HID descriptor
+	len = libusb_control_transfer(udev, LIBUSB_ENDPOINT_IN+1, 
+						LIBUSB_REQUEST_GET_DESCRIPTOR,
+						(LIBUSB_DT_REPORT << 8) + 0, phid->deviceDef->pdd_iid, (char*)buf, 
+						sizeof(buf), 500 /* ms timeout */);
+						
+	if(len < 0)
+	{
+		switch(len)
+		{
+		case LIBUSB_ERROR_TIMEOUT: //important case?
+		default:
+				LOG(PHIDGET_LOG_ERROR, "usb_control_msg failed in CUSBGetDeviceCapabilities with error code: %d", len);
+				ret = EPHIDGET_UNEXPECTED;
+				goto done;
+		}
+	}
+	
+	if(len >= 10)
+	{	
+		for(i=10;i<len;i++) {
+			if(buf[i]==0x81 && buf[i-2]==0x95)
+				phid->inputReportByteLength=buf[i-1];
+			else if(buf[i]==0x81 && buf[i-4]==0x95)
+				phid->inputReportByteLength=buf[i-3];
+			if(buf[i]==0x91 && buf[i-2]==0x95)
+				phid->outputReportByteLength=buf[i-1];
+			else if(buf[i]==0x91 && buf[i-4]==0x95)
+				phid->outputReportByteLength=buf[i-3];
+		}
+	}
+	else
+	{
+		LOG(PHIDGET_LOG_ERROR, "Couldn't get report lengths in CUSBGetDeviceCapabilities");
+		ret = EPHIDGET_UNEXPECTED;
+		goto done;
+	}
+	
+	ret = getLabelString(phid, udev);
+	
+done:
+	if(configDesc)
+		libusb_free_config_descriptor(configDesc);
+	return ret;
+}
+
+libusb_context * libusbContext = NULL;
+void CUSBUninit()
+{
+	if(libusbContext)
+	{
+		LOG(PHIDGET_LOG_INFO, "Deinitializing libusb");
+		libusb_exit(libusbContext);
+		libusbContext = NULL;
+	}
+}
+
+int CUSBBuildList(CPhidgetList **curList) {
+	int MemberIndex, i, j, ret = EPHIDGET_OK, found;
+	unsigned long Length;
+	CPhidgetList *traverse;
+	Length = 0;
+	MemberIndex = 0;
+	CPhidgetHandle phid;
+	char unique_name[20];
+	libusb_device **list = NULL;
+	
+	TESTPTR(curList)
+	
+	if(!libusbContext)
+	{
+		LOG(PHIDGET_LOG_INFO, "Initializing libusb");
+		if((ret = libusb_init(&libusbContext)) != 0)
+		{
+			LOG(PHIDGET_LOG_ERROR, "libusb_init failed with error code: %d", ret);
+			libusbContext = NULL;
+			goto done;
+		}
+	}
+	
+	ssize_t cnt = libusb_get_device_list(NULL, &list);
+	if(cnt < 0)
+	{
+		LOG(PHIDGET_LOG_ERROR, "libusb_get_device_list failed with error code: %d", cnt);
+		goto done;
+	}
+	
+	//search through all USB devices
+	for (j = 0; j < cnt; j++) 
+	{
+		libusb_device *device = list[j];
+		
+		snprintf(unique_name,20,"%d/%d",libusb_get_bus_number(device), libusb_get_device_address(device));
+		
+		found = PFALSE;
+		if (AttachedDevices) {
+			// we need to loop all the way through because composite devices will appear twice in the list with the same 'unique' name
+			for (traverse = AttachedDevices; traverse; traverse=traverse->next) {
+				if (!strcmp((char *)traverse->phid->CPhidgetFHandle, unique_name)) {
+					CList_addToList((CListHandle *)curList, traverse->phid, CPhidget_areEqual);
+					found = PTRUE;
+				}
+			}
+			if(found) goto next;
+		}
+		
+		struct libusb_device_descriptor	desc;
+		if((ret = libusb_get_device_descriptor(device, &desc)) != 0)
+		{
+			LOG(PHIDGET_LOG_ERROR, "libusb_get_device_descriptor failed with error code: %d", ret);
+			goto next;
+		}
+		
+		//LOG(PHIDGET_LOG_DEBUG, "Device %d: %04x %04x", j, desc.idVendor, desc.idProduct);
+	
+		for (i = 1; i<PHIDGET_DEVICE_COUNT; i++) {	 
+			if ((desc.idVendor == Phid_Device_Def[i].pdd_vid) && 
+				(desc.idProduct == Phid_Device_Def[i].pdd_pid))
+			{
+				if (!(phid = (CPhidgetHandle)malloc(sizeof (*phid))))
+				{
+					ret = EPHIDGET_NOMEMORY;
+					goto done;
+				}
+				ZEROMEM(phid, sizeof(*phid));
+				
+				//LOG(PHIDGET_LOG_DEBUG,"New Device: %s",(char *)Phid_DeviceName[Phid_Device_Def[i].pdd_did]);
+				
+				libusb_device_handle *handle = NULL;
+				if (libusb_open(device, &handle) == 0)
+				{
+					if (desc.bcdDevice < 0x100) 
+						phid->deviceVersion = desc.bcdDevice * 100;
+					else
+						phid->deviceVersion = ((desc.bcdDevice >> 8) * 100) + ((desc.bcdDevice & 0xff));
+					phid->deviceType = (char *)Phid_DeviceName[Phid_Device_Def[i].pdd_did];
+
+					CPhidget_setStatusFlag(&phid->status, PHIDGET_ATTACHED_FLAG, &phid->lock);
+					phid->deviceIDSpec = Phid_Device_Def[i].pdd_sdid;
+					phid->deviceUID = CPhidget_getUID(phid->deviceIDSpec, phid->deviceVersion);
+					phid->deviceDef = &Phid_Device_Def[i];
+					phid->deviceID = Phid_Device_Def[i].pdd_did;
+					phid->ProductID = desc.idProduct;
+					phid->VendorID = desc.idVendor;
+					
+					if (desc.iSerialNumber) {
+						char string[256];
+						memset(string, 0, 256);
+						if((ret = libusb_get_string_descriptor_ascii(handle, desc.iSerialNumber, string, sizeof(string))) < 0)
+						{
+							LOG(PHIDGET_LOG_ERROR, "libusb_get_string_descriptor_ascii failed with error code: %d", ret);
+							LOG(PHIDGET_LOG_INFO, "This usually means you need to run as root");
+							libusb_close(handle);
+							free(phid);
+							goto next;
+						}
+						else
+						{
+							phid->serialNumber = atol(string);
+							getLabelString(phid, handle);
+						}
+					}
+					phid->specificDevice = TRUE;
+					phid->attr = Phid_Device_Def[i].pdd_attr;
+					
+					if(!(phid->CPhidgetFHandle = strdup(unique_name)))
+					{
+						ret = EPHIDGET_NOMEMORY;
+						goto done;
+					}
+					
+					LOG(PHIDGET_LOG_INFO, "New device in CUSBBuildList: %s", (char *)phid->CPhidgetFHandle);
+
+					libusb_close(handle);
+					CList_addToList((CListHandle *)curList, phid, CPhidget_areEqual);
+				} //if(udev)
+				else
+				{
+					free(phid);
+					libusb_close(handle);
+				}
+			} //vendor, product ids match
+		} /* iterate over phidget device table */
+next: ;
+	} /* iterate over USB devices */
+	
+done:
+	if(list)	
+		libusb_free_device_list(list, 1);
+    return ret;
+}
+
+void CUSBCleanup(void)
+{
+	;
+}
+/* 
+	CUSBOpenHandle takes a CPhidgetInfo structure, with 
+	ProductID/VendorID/SerialNumber filled in.
+
+	Serial number is always filled in.
+*/
+int CUSBOpenHandle(CPhidgetHandle phid)
+{
+	int idVendor;
+	int idProduct;
+	int serial = 0;
+	int i, j,ret = EPHIDGET_OK;
+	libusb_device **list = NULL;
+	
+	ssize_t cnt = libusb_get_device_list(NULL, &list);
+	
+	if(cnt < 0)
+	{
+		LOG(PHIDGET_LOG_ERROR, "libusb_get_device_list failed with error code: %d", cnt);
+		goto done;
+	}
+	
+	//search through all USB devices
+	for (j = 0; j < cnt; j++) 
+	{
+		libusb_device *device = list[j];
+		
+		struct libusb_device_descriptor	desc;
+		if((ret = libusb_get_device_descriptor(device, &desc)) != 0)
+		{
+			LOG(PHIDGET_LOG_ERROR, "libusb_get_device_descriptor failed with error code: %d", ret);
+			goto next;
+		}
+		
+		for (i = 1; i<PHIDGET_DEVICE_COUNT; i++) {
+			if (Phid_Device_Def[i].pdd_did == phid->deviceID) {
+				idVendor = Phid_Device_Def[i].pdd_vid;
+				idProduct = Phid_Device_Def[i].pdd_pid;
+				if ((desc.idVendor == idVendor) && (desc.idProduct == idProduct)) {
+					
+					/* the vend/prod matches! */
+					libusb_device_handle *handle = NULL;
+					if (libusb_open(device, &handle) == 0)
+					{
+						serial = -1;
+						if (desc.iSerialNumber) {
+							char string[256];
+							if((ret = libusb_get_string_descriptor_ascii(handle, desc.iSerialNumber, string, sizeof(string))) < 0)
+							{
+								LOG(PHIDGET_LOG_WARNING, "libusb_get_string_descriptor_ascii failed with error code: %d", ret);
+								LOG(PHIDGET_LOG_INFO, "This usually means you need to run as root");
+								libusb_close(handle);
+								goto next;
+							}
+							else
+							{
+								serial = atol(string);
+							}
+						}
+						if (serial == phid->serialNumber) {
+							//Detach any Kernel Drivers
+							if((ret = libusb_kernel_driver_active(handle, Phid_Device_Def[i].pdd_iid)) < 0)
+							{
+								LOG(PHIDGET_LOG_WARNING, "libusb_kernel_driver_active failed with error code: %d", ret);
+							}
+							else if(ret == 1)
+							{
+								LOG(PHIDGET_LOG_INFO, "Kernel driver is active - will attempt a detach");
+								if((ret = libusb_detach_kernel_driver(handle, Phid_Device_Def[i].pdd_iid)) != 0)
+								{
+									LOG(PHIDGET_LOG_WARNING, "libusb_detach_kernel_driver failed with error code: %d", ret);
+								}
+								else
+								{
+									LOG(PHIDGET_LOG_INFO, "Successfully detached kernel driver");
+								}
+							}
+							
+							if((ret = libusb_claim_interface(handle, Phid_Device_Def[i].pdd_iid)) != 0)
+							{
+								LOG(PHIDGET_LOG_WARNING, "libusb_claim_interface failed with error code: %d", ret);
+								libusb_close(handle);
+							}
+							else
+							{
+								/* the serialnum is okay */
+						
+								phid->deviceHandle = (HANDLE)handle;
+								phid->deviceIDSpec = Phid_Device_Def[i].pdd_sdid;
+								phid->deviceDef = &Phid_Device_Def[i];
+								phid->deviceType = (char *)Phid_DeviceName[Phid_Device_Def[i].pdd_did];
+		
+								phid->ProductID = idProduct;
+								phid->VendorID = idVendor;
+								if (desc.bcdDevice < 0x100)
+									phid->deviceVersion = desc.bcdDevice * 100;
+								else
+									phid->deviceVersion = ((desc.bcdDevice >> 8) * 100) + ((desc.bcdDevice & 0xff));
+									
+								phid->deviceUID = CPhidget_getUID(phid->deviceIDSpec, phid->deviceVersion);
+								phid->serialNumber = serial;
+		
+								if((ret = CUSBGetDeviceCapabilities(phid, device, handle)))
+								{
+									LOG(PHIDGET_LOG_ERROR, "CUSBGetDeviceCapabilities returned nonzero code: %d", ret);
+								}
+
+								phid->attr = Phid_Device_Def[i].pdd_attr;
+		
+								ret = EPHIDGET_OK;
+								goto done;
+							} /* usb_claim_interface */
+						} /* serial matches */
+						else
+						{
+							libusb_close(handle);
+						}
+					} /* udev open */
+					else
+					{
+						libusb_close(handle);
+						LOG(PHIDGET_LOG_WARNING, "usb_open failed - bad permission or what?");
+					}
+				} /* vendor/product match */
+			} /* deviceID matches in table */
+		} /* iterate over phidget device table */
+next: ;
+	} /* iterate over USB devices */
+done:
+	if(list)	
+		libusb_free_device_list(list, 1);
+	
+  	return ret;
+}
diff --git a/linux/cusblinux.c b/linux/cusblinux.c
index 3a12fca..5e4886c 100644
--- a/linux/cusblinux.c
+++ b/linux/cusblinux.c
@@ -9,6 +9,12 @@
 
 #include "stdafx.h"
 #include "cusb.h"
+#include <usb.h>
+
+int CUSBGetDeviceCapabilities(CPhidgetHandle phid, struct usb_device *dev, struct usb_dev_handle *udev);
+
+void CUSBUninit()
+{}
 
 int CUSBCloseHandle(CPhidgetHandle phid) {
 	int ret = 0;
@@ -472,6 +478,7 @@ int CUSBBuildList(CPhidgetList **curList) {
 
 						CPhidget_setStatusFlag(&phid->status, PHIDGET_ATTACHED_FLAG, &phid->lock);
 						phid->deviceIDSpec = Phid_Device_Def[i].pdd_sdid;
+						phid->deviceUID = CPhidget_getUID(phid->deviceIDSpec, phid->deviceVersion);
 						phid->deviceDef = &Phid_Device_Def[i];
 						phid->deviceID = Phid_Device_Def[i].pdd_did;
 						phid->ProductID = dev->descriptor.idProduct;
@@ -634,7 +641,9 @@ int CUSBOpenHandle(CPhidgetHandle phid)
 									if (dev->descriptor.bcdDevice < 0x100)
 										phid->deviceVersion = dev->descriptor.bcdDevice * 100;
 									else
-										phid->deviceVersion = ((dev->descriptor.bcdDevice >> 8) * 100) + ((dev->descriptor.bcdDevice & 0xff));			
+										phid->deviceVersion = ((dev->descriptor.bcdDevice >> 8) * 100) + ((dev->descriptor.bcdDevice & 0xff));
+										
+									phid->deviceUID = CPhidget_getUID(phid->deviceIDSpec, phid->deviceVersion);
 									phid->serialNumber = serial;
 			
 									if((ret = CUSBGetDeviceCapabilities(phid, dev, udev)))
diff --git a/linux/zeroconf_avahi.c b/linux/zeroconf_avahi.c
index 98187bf..9b205b3 100644
--- a/linux/zeroconf_avahi.c
+++ b/linux/zeroconf_avahi.c
@@ -301,6 +301,7 @@ void PhidFromTXT(CPhidgetHandle phid, uint16_t txtLen, const char *txtRecord)
 		phid->deviceType = Phid_DeviceName[phid->deviceID];

 		free(type);

 	}

+	phid->deviceUID = CPhidget_getUID(phid->deviceIDSpec, phid->deviceVersion);

 	

 	phid->networkInfo->mdns = PTRUE;