LibUsbDotNet 2.2.8Introduction C# - documentation.help · C# LibUsbDotNet 2.2.8Introduction LibUsbDotNet is a .NET C# USB library for WinUsb, libusb-win32, and Linux libusb v1.x developers

C#LibUsbDotNet2.2.8Introduction

LibUsbDotNetisa.NETC#USBlibraryforWinUsb,libusb-win32,andLinuxlibusbv1.xdevelopers.AllbasicUSBdevicefunctionalitycanbeperformedthroughcommondeviceclassesallowingyoutowriteOSanddriverindependentcode.

LibUsbDotNet-Adevelopmenttoolwrittenfor.NETsoftwaredeveloperswhodesireafastandeasywaytocreateacompletecustomUSBdriversolutionforunix-likeandwindowsplatforms.

Caution:LibUsbDotNetisnotinanywayanend-userdriverorareplacementdriverforexistingwindowsclassdrivers.

Note:LibUsbDotNetversions2.2.4andabovesupporttheLibusb-1.0driver.

Libusb-1.0issupportedunderbothunix-likeandwindowsplatforms.UnderwindowsthenewLibusb-1.0windows-backenddriverisused.Alternatively,MonoLibUsbcanbeuseddirectlytosupportusbdeviceusingonlytheLibusb-1.0driver.

LibUsbDotNet2.1.0andabovesupportsthegenuinelibusb-win32driverpackage.However,accesstobasicdeviceinformationviathewindowsregistryisnotavailable.SeetheLegacyUsbRegistryclassformoreinformation.

Features

FullsupportforWinUSB.AllWinUSBinterfacesaretreatedasseperatedevices.IEeachinterfacecanbeusedbyadifferentapplication.

Extendedkernellevelsupportforlibusb-win32.

http://sourceforge.net/projects/libusbdotnethttp://www.libusb.org/wiki/Libusb1.0http://www.libusb.org/wiki/windows_backendhttp://www.libusb.org/wiki/Libusb1.0http://sourceforge.net/projects/libusb-win32

Supportsunix-likeoperatingsystemsusingmono.NETandLibusb-1.0.

Commondeviceclassesallowforasinglecodebasetosupportmultipledriversandplatforms.

IncludesaUsbInfWizardutility(windowsonly)forgeneratingusbinstallationpackages,removingdevices,andinstallingdrivers.

Devicediscoveryusinganyorallofthefolowingcriteria:

VendorID

ProductID

RevisionCode

SerialNumber

DeviceInterfaceGUID

Sourcepackageincludesmanysmallexampleapplications.

ProjectLinks

DownloadPage

SupportForum

SubmitaBug

ViewOutstandingBugs

libusb-win32ProjectPage

libusb-1.0ProjectPage

SendcommentsonthistopictoLibUsbDotNetSupportCopyright(C)2010TravisRobinson.AllRightsReserved.

http://www.mono-project.comhttp://sourceforge.net/projects/libusb/files/libusb-1.0/http://sourceforge.net/projects/libusbdotnet/files/http://sourceforge.net/apps/phpbb/libusbdotnethttp://sourceforge.net/tracker/?func=add&group_id=206606&atid=1140572http://sourceforge.net/tracker/?limit=50&func=&group_id=206606&atid=1140572&status=1&submit=Filterhttp://sourceforge.net/apps/trac/libusb-win32/wikihttp://libusb.orgmailto:libusbdotnet%40gmail.com?Subject=LibUsbDotNet 2.2.8http://www.gnu.org/licenses/lgpl.html

C#LibUsbDotNet2.2.8VersionHistory

ProjectLinks

DownloadPage

SupportForum

SubmitaBug

ViewOutstandingBugs

libusb-win32ProjectPage

libusb-1.0ProjectPage

v2.2.8(10/29/2010)FixedissuewithDataReceivedevent.

WhendisablingtheDataReceviedevent,thepropertywouldreturnbeforetheactionhadbeenfullycarriedout.

Fixedmemoryleakindevicelistfunction.

AnallocatedGCHandlewasnotfreedinthedevicelistingfunctionsresultinginaapplicationmemoryleak.

PreviousVersionsv2.2.7(07/31/2010)

Fixedlibusb-1.0support.

ThiswasbrokenwhenISOendpointsupportwasadded.

HasLibUsbDriver()property

Thispropertywillalwaysreturntrue.

http://sourceforge.net/projects/libusbdotnet/files/http://sourceforge.net/apps/phpbb/libusbdotnethttp://sourceforge.net/tracker/?func=add&group_id=206606&atid=1140572http://sourceforge.net/tracker/?limit=50&func=&group_id=206606&atid=1140572&status=1&submit=Filterhttp://sourceforge.net/apps/trac/libusb-win32/wikihttp://libusb.org

Fixed32bitapplicationsnotrunningon64bitoperatingsystems.(Windows)

IfLibUsbDotNetiscompiledasWin32insteadofAnyCPUitwouldnotworkon64bitoperatingsystemswithlibusb-win32.

UpdatedInfWizardwithembeddedlibusb-win32v1.2.1driverresourcepackage.UpdateddefaultUsbEndpointBase.MaxReadWritechangedbackto65536.Thisisthelimitatwhichlibusbdotnetbeginssplittingtransfers.

v2.2.6(07/10/2010)Removedlibusb-win32(ludn)sourcebranch.

TheLUDNeditionoflibusb-win32hasbeendiscontinuedasitisnolongerneeded.LibUsbDotNetv2.2.6andabovearepackagedwiththeofficiallibusb-win32signeddrivers.(http://sourceforge.net/projects/libusb-win32)

AddedIsochronousendpointsupport.AddedAdditionalsupportforasynchronousI/O.SeetheUsbTransferQueueclassandtheRead.Isochronousexample.UpdatedInfWizardtoincludeanembeddedlibusb-win32driverresourcepackage.

PreviousversionoftheInfWizardrequiredtheusertodownloaddriverresourcepackage(s)beforeitcouldbeused.InfWizardwillcontinuetosupportthesedownloadabledriverpackagesbutnowcomeswithalibusb-win32driverresourcepackageembeddedintoInfWizard.exe.

v2.2.5(04/22/2010)AddedDataReceivedEnabledChangedevent

ThiseventisfiredontheDataReceivedEnabledpropertychangesstate.

UpdatedTheLibUsbDotNetInfWizardhasbeenre-workedand

includesmanynewfeatures.

InfWizardnolongerusesthe'FindDrivers'option.Instead,itusesdriverresourcepackagesthatcontainthedrivers/coinstallers,inf/catfiletemplates,andallotherfilesthatmayberequiredbytheinstallation.DriverresourcepackagescanbedownloadedautomaticallybyInfWizardorfromhttp://sites.google.com/site/libusbdotnet/driver_resources.Asofv2.2.5Winusb1.9andlibusb-win320.1.12.2packagesareavailable.

InfWiardhasaninstallnowfeature,thankstoPeterBatardandtheLibusb-1.0team.Afteradriverpackageiscreated,itcanbeautomaticallyinstalled.

InfWizardremovedevicefunctionenhancements.Theremovedevicefunctioncanremoveusbdevicesbythedeviceinstanceidoralldevicesmatchingthehardwareid.ItnowcallsSetupDiUnintallOEMInfaswellasSetupDIRemoveDevice.

Detailedloggingadded.MostoftheInfWizardpageshavealogstatusrtfboxwhichindicatesthecurrentprogressofanoperation.Alllogstatusboxescanbesaved,copiedandclearedviathecontextmenu.

UpdatedWinUsbRegistryclass

Improvedsupportforcompositedevices.AddedDeviceIDandInterfaceIDproperty

AddedEndpointTypeparametertoOpenEndpointReaderandOpenEndpointWritermethods.

TheendpointtypemustbespecifiedforlinuxLibusb-1.0compatibility.

AddedBenchmarkConsoleapplication.

ThankXiaofan(http://mcuee.blogspot.com)forhelpingdebugthisapplicationandgettingitreadyforrelease.

FixedUsbdevicesrunnningbenchmarkfirmwaredonotworkcorrectlyifpluggedinwhilebootingunderlinux.UpdatedBenchmarkfirmwareforMicrochipPICUSBdevicesupdatedtoMCHPFSUSBFrameworkv2.6a.Addedsupportfornopingpongbufferingbenchmarktests.

v2.2.4(03/13/2010)FixedBugID:2969931-Linuxxbuildissue.

ThexbuildutilityfailedtobuildtheLibUsbDotNet.sln.ThiswascausedbyaninvalidresourceintheInfWizardapplicationandacastingissueforfunctionthattakeaPredicateasaparameter.

FixedBugID:2956665-UsbDeviceFinderfailstofindVIDandPIDs>0x7FFF.

USBdevicesthathaveVIDorPIDsgreaterthan0x7FFFarenotfoundbytheUsbDeviceFinderclass.

AddedAsynchronoustransferfunctionstoUsbEndpointBase.

FormoredetailsseetheNewAsyncTransfer()andSubmitAsyncTransfer()functionsintheUsbEndpointBaseclass.

AddedLow-level.NETMonoLibUsbAPIforLibusb-1.0.

Thelow-levelMonoLibUsbAPI(Libusb-1.0)issupportedonmanyplatformsincludingwindowsviatheLibusb-1.0windows-backendport.

UnliketheLibUsbDotNetAPI,MonoLibUsbhasfullsupportforallLibusb-1.0functions.

AddedUsbRegistry.ForceSetupApioption.

ThisoptionforcesLibUsbDotNettogatherextradeviceinformationviathewindowssetupapifordevicesusingdriversthatdonotsupportthesetupapi.

AddedUsbDevice.ForceLibUsbWinBackoption.

http://sourceforge.net/tracker/?func=detail&aid=2969931&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2956665&group_id=206606&atid=1140572http://www.libusb.org/http://www.libusb.org/wiki/windows_backend

ThisoptionforcesLibUsbDotNettouseonlytheLibusb-1.0windowsbackenddriver.

v2.2.3(01/30/2010)Removed-GetConfigurationcallinUsbDevice.Openmethod.

TheUsbDevice.Open()methodrequeststheusbdevicescurrentconfigurationuponopening.Thiscausesproblemsinsomesituations.

AddedIUsbDevice.ResetDevice()method.FixedBugID:2937372-ReadFailed:WaitHandle.WaitOnemissingmemberexception.

If.NET3.5isnotinstalled,aSystem.Threading.WaitHandle.WaitOnemissingmemberexceptionisthrown.LibUsbDotNetshouldnotrequirethe3.5runtime.Itshouldworkwith2.0andgreater.

FixedBugID:2935627-Stackoverflowwhenreadinganepthatdoesnotexists.

Ifanattemptismadetoopenandtransmittoanon-existentendpointastackoverflowoccurs.Expectedbehavioristothrowanexception.

FixedBugID:2935456-UsbDevice.KernelTypepropertynotsetcorrecty.

[WindowsOnly]IftheUsbDevice.KernelTypeisaccessedwhennodeviceareconnecteditdoesnotupdateproperlywhenadeviceisconnected.

v2.2.2(01/19/2010)FixedBugID:2934547-DeviceNotifiernotworking.

OnLinuxlikeOSestheDeviceNotifierneverfiresevents.OnWindows,aDllNotFoundexceptionisthrown.

http://sourceforge.net/tracker/?func=detail&aid=2937372&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2935627&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2935456&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2934547&group_id=206606&atid=1140572

FixedBugID:2933530-CompositeWinUSBnotfound.

WinUSBinterfacesthatarepartofacompositedevicedonotappearintheWinUsbRegistry.DeviceList.

v2.2.1(01/13/2010)FixedBugID:2930836-[OSXPPC]GetDescriptorrequestfails.

Onbig-endianplatforms,thedescriptortypeandindexbytesarereversed.

FixedBugID:2927179-Wrongversioning.LibUsbDotNet2.2.0allAssemblyInfo.cscontains[assembly:AssemblyVersion("2.1.0.13")]UpdatedBenchmarkapplication:RemovedallcallstoControl.Invoke.

Thebenchmarkapplicationnowusesatimercontroltoperiodicallyupdatethedisplayinsteadof"Invoking"anupdateeverytimedataistransferred.Thisprovidesamoreaccuratebenchmarkreadingaswellasawork-a-roundforMono.NETruntimesonplatformsthatdonotproperlyimplementtheControl.Invokemethod.

RemovedLINUXcompileroption.

TheLINUXcompileroptionisnolongerused.LibUsbDotNet(v2.2.1andabove)isfullyplatformindependent.

v2.2.0(12/29/2009)AddedLinuxsupport.

LibUsbDotNetsupportslinuxviathelinuxlibusbv1.xdriver.

UpdatedUsbDevice.OpenEndpointReaderandUsbDevice.OpenEndpointWritermemberstofirstlookuptheendpointdescriptorforthecurrentconfiguration.

Ifanattemptismadetoopenanendpointonaunconfigureddevice(GetConfiguration=0)anexceptionisthrown.

http://sourceforge.net/tracker/?func=detail&aid=2933530&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2930836&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2927179&group_id=206606&atid=1140572

Ifanattemptismadetoopenanon-existentorinvalidendpointanexceptionisthrown.

AddedendpointdescriptorinformationtoUsbEndpointBaseclass.

ANewproperty,'EndpointInfo'isavailablefromtheUsbEndpointBaseclass.

RemovedDepricatedUsbGlobalsclass.

TheUsbGlobalsclasshasbeenrenderedobsoleteandwillberemovedinfuturerelease.UpdateyourcodeyouusetheUsbDeviceclassinstead.

v2.1.0(11-02-2009)FixedBugID:2886021-Problemwithseveralinstancesofthesamedevice(WinUsb)

Whenconnecting2(ormore)identicalUSBdevices,thelibraryhasproblemsopeningeachdeviceinstance.

FixedBugID:2873320BugID:2874172-ErrorgettingKey"SymbolicName"

SomedeviceshavingnoSymbolicName.Inthiscase,themainapplicationor.NETframeworkcrashes.

FixedBugID:2853283-Infwizardexceptionthrownonload

TheInfWizardthrowsanexceptionwhenloaded.

Addedsupportforthegenuinelibusb-win32kerneldriver.

IftheLibUsbDotNetnativekerneldriverisnotdetecteditfallsbacktotheoriginallibusb-win32kerneldriver.Usingthenativedriverisrecommended.

AddedstaticopenmethodtotheLibUsbDeviceclass.

OpensalibUsbdevicefromausersuppileddevicefilename.

http://sourceforge.net/tracker/?func=detail&aid=2886021&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2873320&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2874172&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2853283&group_id=206606&atid=1140572

publicstaticboolOpen(stringdeviceFilename,outLibUsbDeviceusbDevice)

AddedstaticopenmethodtotheWinUsbDeviceclass.

OpensaWinUSBdevicefromausersuppileddevicepath(symboliclink).

publicstaticboolOpen(stringdevicePath,outWinUsbDeviceusbDevice)

RemovedDeviceInterfaceGuidpropertyfromWinUsbDeviceclass.

ADeviceInterfaceGuidisnotrequiredforaWinUsbDevice.

RemovedUsbRegistryInfopropertyfromUsbDeviceclasses.

AUsbRegistryinstanceisnotrequiredfortheUsbDeviceclasses.

Removeddeviceandendpointlevellockingfeatures.

Thedeviceandendpointlevellockingfeatureshadspecficrequirementspertainingtotheusbsymbolicnamethatcouldnotalwaysbemet.

v2.0.3(09-03-2009)FixedBugID:2845680-LibUsbDotNet-libusb-win32v2.1.12.1GET_INTERFACErequestfailsinXPSP3

TheGET_INTERFACErequestinthelibusbkerneldriverfailsonWindowsXPSP3butworksunderwindowsVista.

FixedBugID:2845679-InfWizardSpawndriverfunctionproblems.

TheInfWizardspawndriverfunctionfailstolocateWinUSBsupportdriversfromtheDDKinstalldirectory.

AddedUsbExceptiononnon-existentendpoint.

http://sourceforge.net/tracker/?func=detail&aid=2845680&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2845679&group_id=206606&atid=1140572

Ifananattemptismadetoopenanendpointthatdoesnotexists,aUsbExceptionisthrown.

UpdatedLibUsbDotNet-libusb-win32kerneldriver.

AppliedLibUsbDotNetkerneldriverpatchestolibusb-win32v0.1.12.2.LibUsbDotNet-libusb-win32v2.1.12.2kernelcreated.

UpdatedTest_Bulkapplication.

Removedallreferencestobenchmarkdevice.TheTest_Bulkapllicationismoreuniversalandeasiertotailortospecificdevices.

Updateddocumentation.

v2.0.2(08-16-2009)FixedBugID:2833695-USBrev.codetreatedashexinsteadofbcd.

TheUSBSymbolicNameclassisconvertingthebcdrevisionnumbertoahexnumber.

FixedBugID:2833701-InfWizardneverpopulatesthe"DriverInformation"property.

OnthefinalwizardpageoftheInfWizardthe"DriverInformation"propertyunderthe"Info"categoryisneverpopulated.

AddedInfWizardremovedeviceoptionsform.AddedInfWizarddisclaimers.AddedBenchmarkPICdevicefirmwareforMCP2.5USBstack.Updateddocumentation.

v2.0.1(07-09-2009)FixedBugID:2816121-UsbGlobals.OpenDevice(UsbDeviceFinder)Nullreferenceexception

http://sourceforge.net/tracker/?func=detail&aid=2833695&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2833701&group_id=206606&atid=1140572http://sourceforge.net/tracker/?func=detail&aid=2816121&group_id=206606&atid=1140572

CallingUsbGlobals.OpenDevice(UsbDeviceFinder)generatesanexceptionifthedeviceisnotfound.

FixedBugID:2818621-DeviceNotifierInvalidMarshalfieldNameException

Fieldpassedinisnotamarshaledmemberofthetype'LibUsbDotNet.DeviceNotify.Internal.DevBroadcastPort'.Parametername:fieldName.

Added3exampleprojects.Updateddocumentation.

v2.0.0(07-01-2009)AddedSupportforMicrosoftsgenericuser-modeusbdriver,WinUsb.AddedAddedkernellevelsupportforlibusb-win32.AddedAddedanewandimprovedInfWizard.AddedAddedadvancedUSBlockingstrategiesforprocess/threadlevelusbdevicesharing.AddedAddedAdditionalread/writefunctionsaddedtotheendpointreader/writerclasses.UpdatedUpdateddocumentationwithSandCastle(SHFB).DocumentationisnowavailableinhtmlandMicrosoftHelp.chmformat.UpdatedUpdatedLibUsbDotNettypeandmembernames;theynowadheretostrictnamingconventions.AddedAddedadditionalmembersandtypesformoreeasilylocatingandopeningusbdevicesby:

VendorIDProductIDRevisionCodeSerialNumberDeviceInterfaceGUID

v1.0.1(10-09-2007)UpdatedPortedtoC#2.0!ManyAPIchanges.Seedocumentation.AddedAddedTest_DeviceNotifysampleproject.

http://sourceforge.net/tracker/?func=detail&aid=2818621&group_id=206606&atid=1140572

FixedFixedmisingdataissuewiththeDataReceivedevent.UpdatedRebuiltlibusbcorecomponentswithWINDDK2003(SP1).AddedAddedItanium64bitsupport.FixedFixedx64installationerror.

v0.1.4(07-18-2007)RemovedDebugruntimesremovedfromthedistributionstoavoidconfusion.AddedNewClassAdded.TheDeviceNotifyclassisusedforreceivingdeviceinsertion/removalevents.Seedocumentationforfulldetails.

v0.1.3(01-04-2007)AddedAddedlockroutinestointernalread/writefunctionstoincreasemulti-threadingstability.RemovedRemoveddependenciesonmsvcmrt.lib.UpdatedProjectdefaultschangedtocompiledwith/clr:puresyntax.AddedAdded64bitsupport.FixedFixedfunctionClibUsb.Open(InfoDevice).Itwillnowopendifferentdeviceswiththesamevendorandproductid.AddedAddedremovefunctionstotheCLibUsb.ActiveEndPointsproperty(CEndPontsclass)


mailto:libusbdotnet%40gmail.com?Subject=LibUsbDotNet 2.2.8http://www.gnu.org/licenses/lgpl.html

C#

LibUsbDotNet2.2.8GettingStartedWithLinux

LibUsbDotNetiscompatiblewithlinux/unix-likeoperatingsystemsthatsupportmono.net2.0andlibusbv1.x.

PrerequisitesNote:

Theusermusthaveappropriateaccesspermissionstotheusbdevicebeforeitcanbeusedwithlinux.Thisistrueformostunix-likeOSes.

1. Ifyourplatformhasitsownpackagemanager(Aptitude,Synaptic,etc),useittodownloadandinstalltherequiredsoftwarepackagesbelow.

2. Downloadandinstallthelibusb-1.0package.

Iflibusb-1.0binariesdonotexistsforyourplatform,youmustbuildthemfromsource.Buildinglibusb-1.0fromsourceisverystraightforward.SeetheINSTALLdocumentationfileinthelibusb-1.0sourcepackageformoredetails.

3. DownloadandinstalltheMono.Net2.xpackage.

Thepre-compiledMono.Netruntimebinariesareavailablefornearlyallplatforms.However,forinformationonbuldingthemono.netruntimefromsourceseeCompiling_Mono.

Usingthepre-builtLibUsbDotNetBinarypackage.

1. DownloadtheLibUsbDotNet_Binpackageandunzipittoanewsub-directory(LibUsbDotNet_Bin).

2. OpenaterminalwindowandnavigatetothenewLibUsbDotNet_Bindirectory.

http://sourceforge.net/projects/libusb/files/libusb-1.0/http://www.go-mono.com/mono-downloads/download.htmlhttp://www.mono-project.com/Compiling_Monohttp://sourceforge.net/projects/libusbdotnet/files/

3. RuntheTest_Infoapplicationbytyping:monoTest_Info.exe

Test_InfoshouldfindallUSBdevicestheuserhasaccesstoandprovidesadevicecountinthestatusbar.Ifnodevicesarefound,verifytheuserhassufficientaccesspermissions,ortryrunningastherootuser.

BuildingLibUsbDotNetFromSource

1. DownloadtheLibUsbDotNet_Srcpackageandunzipittoanewsub-directory(LibUsbDotNet_Src).

2. OpenaterminalwindowandnavigatetothenewLibUsbDotNet_Srcdirectory.

3. TheLibUsbDotNet.slncanbebuiltwiththexbuildtool:

xbuildLibUsbDotNet.sln

NextStepsAllLibUsbDotNetexampleapplication,withtheexceptionoftheInfWizard,arecompatiblewithlinux.

AllexampleandtestapplicationsotherthanTest_Infohavespecialrequirementsoftheusbdevice(generallyaloopbackonEp1).TheInfWizardisincompatiblewithLinux.


http://sourceforge.net/projects/libusbdotnet/files/mailto:libusbdotnet%40gmail.com?Subject=LibUsbDotNet 2.2.8http://www.gnu.org/licenses/lgpl.html

C#

LibUsbDotNet2.2.8GettingStartedWithWindows

BeforeLibUsbDotNetcanaccessausbdeviceonaWindowsoperatingsystemthedevicemustbeinstalledwitheitherWinUSBorlibusb-win32usbdrivers.Optionally,libusb-win32hastheuniqueabilitytooperateasafilterservice.Whenthefilterservicemodeisenabled,libusb-win32willallowaccesstoeveryusbdeviceonthesystemwithouttheneedfordriversetup/installationpackages.

TolearnhowtoautomaticallygenerateaUSBInstallpackagessee:CreatingaUsbInstallPackage.TolearnmoreabouttheInfWizardutilitysee:UsingtheInfWizardUtility.

Usingthelibusb-win32FilterService

ThefilterserviceisinstalledbytheLibUsbDotNetSetuppackageandisdisabledbydefault.ItcanbeenabledanddisabledfromtheLibUsbDotNetsub-menu.

Start->Programs->LibUsbDotNet->libusb-win32->Enablefilterservice

Start->Programs->LibUsbDotNet->libusb-win32->Disablefilterservice

Thelibusb-win32filterserviceshouldonlybeusedinadevelopmentenvironmentasitcaninterferewithnormalUSBoperation.

ForcingLibusb-1.0UsageOnWindows

LibUsbDotNetcanbeforcedtousetheLibusb-1.0APIonwindowsbysettingthestaticForceLibUsbWinBackfieldtotrue.Withthisfieldset,allcustomHIDdevicesandWinUSBdevicesarepresentinthedevicelist.

NOTE:Libusb-1.0doesnottreatmultipleWinUSBinterfacesasseperate

devices.Keepthisinmindwhenusingacompositedeviceandmulti-platformsupportisrequired.



C#LibUsbDotNet2.2.8UsingtheInfWizard

LibUsbDotNetINFWizardcreatescompletewindowsUSBinf/setuppackagesforusbdevices.CurrentlydriverresourcesareavailableforbothWinUSBandlibusb-win32.

FeaturesCreatesUSBinstallationpackagesRemovesUSBdevicesInstallsUSBdevicedriversUsesconfigurabledriverresourcepackages

GettingDriverResourcePackages

TheInfWizardutilityrequiresoneormoredriverresourcepackagestooperate.Adriverresourcepackagecontainsthedriverandinffiletemplatesneededtobuildausbsetuppackage.InfWizardcandownloadtheseautomaticallyortheycanbedownloadedmanuallyfromtheLibUsbDotNetDriverResourcePage

Note:DriverresourcesthataredownloadedmanuallymustbeplacedintheworkingdirectoryortheInfWizard.exepathdirectory.

Adriverresourcepackageisastandard.NETresourcefile.UserscanmodifyexistingpackagesorcreatenewonesfromscratchandusethemwithInfWizardtogeneratecustom-tailoreddeviceinstallations.

SeeAlsoCreatingaUSBInstallPackageRemovingaUSBInstallPackage


http://libusbdotnet.sourceforge.net/driver_resourcesmailto:libusbdotnet%40gmail.com?Subject=LibUsbDotNet 2.2.8http://www.gnu.org/licenses/lgpl.html

C#

LibUsbDotNet2.2.8CreatingaUsbInstallPackage

InfWizardcreatesusbsetuppackagesusingInfWizarddriverresourcepackages.

BuildingaGenericSetupPackagewithInfWizard

1. Plugintheusbdevice.IfWindowsdisplaystheFoundNewHardwareWizard,closeitnow.

LaunchtheInfWizardandclickNext.

Welcome

2. IfInfWizarddoesnotfindanydriverresourcepackages,thedownloaddriverresourcepageisshown.

ClicktheDownloaddriverresourcesfromtheinternetradiobutton.Thisgetsthelistofdriverresourcepackagesavailablefordownload.Bydefault,allpackagesareselectedfordownload.

ClicktheDownloadbuttonandwaitforthepackagedownloadstocomplete.

DriverResourceDownloader

DownloadDriverResourceList

DownloadDriverResources

3. Selectausbdevicetogenerateaninstallationpackagefor.Bydefault,InfWizardwilldisplayonlydevicesthatarecurrentlyconnectedtothepc(Connected)anddonotalreadyhavedriversinstalled.(Driverless)

ClickNext.

DeviceSelection

4. Selectthedriverresourcepackagethatwillbeusedtogeneratethissetuppackage.

SelectaSaveDirectorywherethesetuppackagewillbewritten.IftheCreateDriverDirectorypropertyistrue,thesetuppackageiswrittentoasub-directoryoftheSaveDirectorynamedtotheBaseFilenameIE:SaveDirectory\BaseFilename

Optionally,fine-tunethedevicedescription,manufacturer,andanyotherofthepropertiesinthegrid.

Beforeclickingnext,theprofilecanbesavedandloadedatlatertimeforfurthermodification.

ClickNextandthesetuppackagewillbegeneratedandwrittentotheSaveDirectory.

DeviceConfiguration

PackageGeneration

5. AtthispointthesetuppackageshouldhavebeengeneratedandresidingintheSaveDirectory.

Ifdesired,thispackagecanbeinstalledbyclickingtheInstallNowbutton.

Copy

DriverInstaller

Example

SetupInf

[Version]Signature="$WindowsNT$"Class=WinUsbDevicesClassGuid={A219BCD5-74D8-4d79-A91F-01F749642227}Provider=%ProviderName%CatalogFile=Benchmark_Device.catDriverVer=04/14/2010,1.0.0.0

;==========Manufacturer/Modelssections===========;.ntx86,.ntia64,and.ntamd64

[Manufacturer]%ProviderName%=Benchmark_Device,ntx86,ntamd64,ntia64

[Benchmark_Device.ntx86]%USB\Benchmark_Device.DeviceDesc%=Benchmark_Device_Install,USB\VID_04D8&PID_0053

[Benchmark_Device.ntamd64]%USB\Benchmark_Device.DeviceDesc%=Benchmark_Device_Install,USB\VID_04D8&PID_0053

[Benchmark_Device.ntia64]%USB\Benchmark_Device.DeviceDesc%=Benchmark_Device_Install,USB\VID_04D8&PID_0053

;===================Installation===================

;=========================================================================================;ClassInstall32andClassInstall_AddRegsectionsusedtomakenewdevicemanagercategory.;=========================================================================================[ClassInstall32]AddReg=ClassInstall_AddReg

[ClassInstall_AddReg]HKR,,,,%DEVICEMANAGERCATEGORY%HKR,,Icon,,"-20"

[Benchmark_Device_Install]Include=winusb.infNeeds=WINUSB.NT

[Benchmark_Device_Install.Services]Include=winusb.infAddService=WinUSB,0x00000002,WinUSB_ServiceInstall

[WinUSB_ServiceInstall]DisplayName=%WinUSB_SvcDesc%ServiceType=1StartType=3ErrorControl=1ServiceBinary=%12%\WinUSB.sys

[Benchmark_Device_Install.Wdf]KmdfService=WINUSB,WinUsb_Install

[WinUSB_Install]KmdfLibraryVersion=1.9

[Benchmark_Device_Install.HW]AddReg=Dev_AddReg

[Dev_AddReg]HKR,,DeviceInterfaceGUIDs,0x10000,"{591a9b4c-cc1c-40ed-a9c2-bbd698899f3b}"

[Benchmark_Device_Install.CoInstallers]AddReg=CoInstallers_AddRegCopyFiles=CoInstallers_CopyFiles

[CoInstallers_AddReg]HKR,,CoInstallers32,0x00010000,"WdfCoInstaller01009.dll,WdfCoInstaller"

[CoInstallers_CopyFiles]WinUSBCoInstaller2.dllWdfCoInstaller01009.dll

[DestinationDirs]CoInstallers_CopyFiles=11

;=================SourceMediaSection=====================[SourceDisksNames]1=%DISK_NAME%,,,\x862=%DISK_NAME%,,,\amd643=%DISK_NAME%,,,\ia64

[SourceDisksFiles.x86]WinUSBCoInstaller2.dll=1WdfCoInstaller01009.dll=1

[SourceDisksFiles.amd64]WinUSBCoInstaller2.dll=2WdfCoInstaller01009.dll=2

[SourceDisksFiles.ia64]WinUSBCoInstaller2.dll=3WdfCoInstaller01009.dll=3

;===================Strings===================[Strings]ProviderName="TravisRobinson"USB\Benchmark_Device.DeviceDesc="BenchmarkDevice"WinUSB_SvcDesc="BenchmarkDeviceService04/14/2010,1.0.0.0"DISK_NAME="BenchmarkDeviceInstallDisk"DEVICEMANAGERCATEGORY="WinUsbDevices"



C#

LibUsbDotNet2.2.8RemovingaUsbInstallPackage

TheInfWizardcanbeusedtoremove/cleanupusbinstallpackages.

UnknownListClassRemoveaUsbDeviceInstallPackage

1. LaunchtheInfWizardandclickNext.

Welcome

2. SelecttheusbdevicetoremoveandclickRemoveDevicetodisplaytheInfWizardRemoveDevicewindow.

RemoveDeviceOptions

3. ThedeviceremovalfunctionfirstcallsthewindowsapifunctionSetupDiRemoveDeviceandthenSetupUninstallOEMInf.

IftheDeepCleanpropertywassettotrue,theremovedevicefunctionwillscanALLinffilesinthe[Windows]\InffortheselecteddevicesVIDandPID.Allmatchinginffilearemarkedfordeletioninthefinalconfirmationdialog.

http://msdn.microsoft.com/en-us/library/ff552097.aspxhttp://msdn.microsoft.com/en-us/library/aa377446%28v=VS.85%29.aspx

RemoveUSBDevice

4. Thedialogremainsopenafterthedeviceisremovedsostatuscanbereviewed.



C#

LibUsbDotNet2.2.8LibUsbDotNetExampleCode

Note:Allexamplesarecompleteapplications.Theycanbecreatedandcompiledbyfollowingthebuildinstructionsatthebottom.VisualBasicNote:TogetexamplecodeforVB.NET,downloadandinstallSharpDevelop.SharpdevelopcanconvertcodetoandfromC#,VB.NET,andBOO.SeeAlsoGettingStartedExampleReadOnly(Polling)ExampleRead/Write(Polling)ExampleRead/Write(EventDriven)ExampleDeviceNotificationExampleAsyncRead/WriteExampleReadIsochronous(AsyncTransferQueue)


http://www.icsharpcode.net/OpenSource/SDmailto:libusbdotnet%40gmail.com?Subject=LibUsbDotNet 2.2.8http://www.gnu.org/licenses/lgpl.html

C#

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LibUsbDotNet2.2.8ShowInfo

ShowInfo:ConsoleApplicationDescription

1. OpensaUSBdevicebyvendorandproductid.

2. GetsanddisplaystheUsbDeviceDescriptorandtheUsbConfigDescriptor.

3. GetsanddisplaystheManufacturerString,ifoneexists.

4. GetsanddisplaystheProductString,ifoneexists.

5. GetsanddisplaystheSerialString,ifoneexists.

Example

C#

usingSystem;usingLibUsbDotNet;usingLibUsbDotNet.Info;usingLibUsbDotNet.Main;usingSystem.Collections.ObjectModel;

namespaceExamples{internalclassShowInfo{publicstaticUsbDeviceMyUsbDevice;

publicstaticvoidMain(string[]args){//Dumpalldevicesanddescriptorinformationtoconsoleoutput.UsbRegDeviceListallDevices=UsbDevice.AllDevices;foreach(UsbRegistryusbRegistryinallDevices){

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if(usbRegistry.Open(outMyUsbDevice)){Console.WriteLine(MyUsbDevice.Info.ToString());for(intiConfig=0;iConfig{//ifTRANFER_ENDPOINTis0x80or0x00,LookupEndpointInfowillreturnthe//firstreadorwrite(respectively).if(UsbEndpointBase.LookupEndpointInfo(MyUsbDevice.Configs[outusbInterfaceInfo,break;

MyUsbDevice.Close();MyUsbDevice=null;}}}

//Ifthedeviceisopenandreadyif(MyUsbDevice==null)thrownewException(

//Ifthisisa"whole"usbdevice(libusb-win32,linuxlibusb-1.0)//itexposesanIUsbDeviceinterface.Ifnot(WinUSB)the//'wholeUsbDevice'variablewillbenullindicatingthisis//aninterfaceofadevice;itdoesnotrequireorsupport//configurationandinterfaceselection.IUsbDevicewholeUsbDevice=MyUsbDeviceif(!ReferenceEquals(wholeUsbDevice,{//Thisisa"whole"USBdevice.Beforeitcanbeused,//thedesiredconfigurationandinterfacemustbeselected.

//Selectconfig#1wholeUsbDevice.SetConfiguration(

//Claiminterface#0.wholeUsbDevice.ClaimInterface(usbInterfaceInfo.Descriptor.InterfaceID);}

//openreadendpoint.UsbEndpointReaderreader=MyUsbDevice.OpenEndpointReader((ReadEndpointID)usbEndpointInfo.Descriptor.EndpointID,0,(EndpointType)(usbEndpointInfo.Descriptor.Attributes&

if(ReferenceEquals(reader,null)){thrownewException("Failedlocatingreadendpoint."}

reader.Reset();

//ThebenchmarkdevicefirmwareworkswiththisexamplebutitmustbeputintoPCreadmode.#ifIS_BENCHMARK_DEVICEinttransferred;byte[]ctrlData=newbyte[1];UsbSetupPacketsetTestTypePacket=newUsbSetupPacket((byte)(UsbCtrlFlags.Direction_In|UsbCtrlFlags.Recipient_Device|UsbCtrlFlags.RequestType_Vendor),0x0E,0x01,usbInterfaceInfo.Descriptor.InterfaceID,MyUsbDevice.ControlTransfer(refsetTestTypePacket,ctrlData,#endifTRANFER_SIZE-=(TRANFER_SIZE%usbEndpointInfo.Descriptor.MaxPacketSize);

UsbTransferQueuetransferQeue=newUsbTransferQueue(reader,TRANFER_MAX_OUTSTANDING_IO,TRANFER_SIZE,usbEndpointInfo.Descriptor.MaxPacketSize);

do{UsbTransferQueue.Handlehandle;

//BeginsubmittingtransfersuntilTRANFER_MAX_OUTSTANDING_IOhasbennreached.//thenwaitfortheoldestoutstandingtransfertocomplete.//ec=transferQeue.Transfer(outhandle);if(ec!=ErrorCode.Success)

thrownewException("Failedgettingasyncresult"

//Showsomeinformationonthecompletedtransfer.showTransfer(handle,mTransferCount);}while(mTransferCount++'ifTRANFER_ENDPOINTis0x80or0x00,LookupEndpointInfowillreturnthe'firstreadorwrite(respectively).IfUsbEndpointBase.LookupEndpointInfo(MyUsbDevice.Configs(ExitForEndIf

MyUsbDevice.Close()MyUsbDevice=NothingEndIfEndIfNext

'IfthedeviceisopenandreadyIfMyUsbDeviceIsNothingThenThrowNewException("DeviceNotFound."EndIf

'Ifthisisa"whole"usbdevice(libusb-win32,linuxlibusb-1.0)'itexposesanIUsbDeviceinterface.Ifnot(WinUSB)the''wholeUsbDevice'variablewillbenullindicatingthisis'aninterfaceofadevice;itdoesnotrequireorsupport'configurationandinterfaceselection.DimwholeUsbDeviceAsIUsbDevice=TryCastIfNotReferenceEquals(wholeUsbDevice,'Thisisa"whole"USBdevice.Beforeitcanbeused,'thedesiredconfigurationandinterfacemustbeselected.

'Selectconfig#1wholeUsbDevice.SetConfiguration(

'Claiminterface#0.wholeUsbDevice.ClaimInterface(usbInterfaceInfo.Descriptor.InterfaceID)EndIf

'openreadendpoint.DimreaderAsUsbEndpointReader=MyUsbDevice.OpenEndpointReader(

IfReferenceEquals(reader,Nothing)ThrowNewException("Failedlocatingreadendpoint."EndIf

reader.Reset()

'ThebenchmarkdevicefirmwareworkswiththisexamplebutitmustbeputintoPCreadmode.#IfIS_BENCHMARK_DEVICEThenDimtransferredAsIntegerDimctrlDataAsByte()=NewByte(0){}DimsetTestTypePacketAsNewUsbSetupPacket(MyUsbDevice.ControlTransfer(setTestTypePacket,ctrlData,#EndIfTRANFER_SIZE-=(TRANFER_SIZEModusbEndpointInfo.Descriptor.MaxPacketSize)

DimtransferQeueAsNewUsbTransferQueue(reader,TRANFER_MAX_OUTSTANDING_IO,TRANFER_SIZE,

DoDimhandleAsUsbTransferQueue.Handle

'BeginsubmittingtransfersuntilTRANFER_MAX_OUTSTANDING_IOhasbennreached.'thenwaitfortheoldestoutstandingtransfertocomplete.'ec=transferQeue.Transfer(handle)IfecErrorCode.SuccessThenThrowNewException("Failedgettingasyncresult"EndIf

'Showsomeinformationonthecompletedtransfer.showTransfer(handle,mTransferCount)LoopWhileSystem.Math.Max(System.Threading.Interlocked.Increment(mTransferCount),mTransferCount-

'Cancelsanyoustandingtransfersandfree'sthetransferqueuehandles.'NOTE:Atransferqueuecanbereusedafterit'sfreed.transferQeue.Free()

Console.WriteLine(vbCr&vbLf&"Done!"CatchexAsExceptionConsole.WriteLine()Console.WriteLine((If(ecErrorCode.None,ec&FinallyIfMyUsbDeviceIsNotNothingThenIfMyUsbDevice.IsOpenThen'Ifthisisa"whole"usbdevice(libusb-win32,linuxlibusb-1.0)'itexposesanIUsbDeviceinterface.Ifnot(WinUSB)the''wholeUsbDevice'variablewillbenullindicatingthisis'aninterfaceofadevice;itdoesnotrequireorsupport'configurationandinterfaceselection.DimwholeUsbDeviceAsIUsbDevice=IfNotReferenceEquals(wholeUsbDevice,'Releaseinterface#0.wholeUsbDevice.ReleaseInterface(EndIf

MyUsbDevice.Close()EndIfMyUsbDevice=NothingEndIf

'Waitforuserinput..Console.ReadKey()

'FreeusbresourcesUsbDevice.[Exit]()EndTryEndSub

PrivateSharedSubshowTransfer(handleAsUsbTransferQueue.Handle,transferIndexIfmStartTime=DateTime.MinValueThenmStartTime=DateTime.NowConsole.WriteLine("Synchronizing..")

ReturnEndIf

mTotalBytes+=handle.TransferredDimbytesSecAsDouble=mTotalBytes/(DateTime.Now-mStartTime).TotalSeconds

Console.WriteLine("#{0}complete.{1}bytes/sec({2}bytes)Data[1]={3:X2}"EndSubEndClassEndNamespace

CompilingtheCode

1. Createanewconsoleapplicationinyourfavoritedesigner.

2. Verifyyourprojectreferences:

System.dll

LibUsbDotNet.dll

3. Add/editthemainclass.Copy/Pastecodefromoneoftheexamplesabove.

Note:Exampleusbdevicefirmwareislocatedinthe[InstallDirectory]\Benchmark\Firmware\[Manufacturer]directory.


http://www.icsharpcode.net/OpenSource/SDmailto:libusbdotnet%40gmail.com?Subject=LibUsbDotNet 2.2.8http://www.gnu.org/licenses/lgpl.html

C#

LibUsbDotNet2.2.8MonoLibUsb-[Libusb1.0APILibrary]

TheMonoLibUsbLibusb-1.0low-levelAPIlibraryisacompleteimplementationofLibusb-1.0.

PrerequisitesWindowsRequirestheLibusb-1.0windowsbackenddriver.Uniux-likeplatformsRequirestheLibusb-1.0driver.

GettingStartedwithMonoLibUsb

MuchoftheofficialLibusb-1.0APIDocumentationalsoappliestothe.NETMonoLibUsblow-levelAPIlibrary.Thisisanexcellentreferenceforbothnoviceandadvancedusers.UsersunfamiliarwithLibusb-1.0areencouragedtoreviewtheofficialdocumentationupongettingstarted.

BeforeusingMonoLibUsbaMonoUsbSessionHandlemustbecreated.Asessionhandleisrequiredformanyofthelibraryfunctions.

TheMonoUsbProfileListisyourstartingpointfordiscovering,queryingandopeningUSBdevices.SeetheShowInfoConsoleApplicationExample.

TheMonoLibUsbsourcecodecanbebuiltasastandalonelibrary,seperatefromLibUsbDotNet.Seethe[BaseDir]\LibWinUsb\MonoLibUsb\MonoUsb.slnintheLibUsbDotNetsource.

MigratingfromtheLibusb-1.0CAPItotheMonoLibUsb.NETAPI

TheMonoUsbApifunctionshaveno"libusb_"prefix.andthenamingconventionisUpperCamelCase.Forexample,MonoUsbApi.GetConfiguration()insteadoflibusb_get_configuration().

http://www.libusb.org/http://www.libusb.org/wiki/windows_backendhttp://www.libusb.org/http://libusb.sourceforge.net/api-1.0/

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Functionsthatdealwithfreeing,openingandclosing(withtheexceptionofasynchronoustranfers)aremanagedbyaSafeContextHandleclass.ThisensuresallunsafeLibusb-1.0memorypointersgetclosed/freed.

TheuserisrequiredtoFree()asynchronoustransfers.Failuretodosowillresultinmemoryleaks.

ThefollowingfunctionsdonotexistintheMonoUsbApi:

libusb_init()libusb_exit()

AMonoUsbSessionHandleclassisusedtomanagealibusb_context.

C++

//InitializeContextlibusb_context*context;libusb_init(&context);

//ExitContextlibusb_exit(context);

C#

//InitializeContextMonoUsbSessionHandlecontext=newMonoUsbSessionHandle();

//ExitContextcontext.Close();

libusb_free_device_list()

AMonoUsbProfileListHandleclassisusedtomanageadevicelisthandle.Tofreeadevicelisthandle,callthelisthandlesClose()method.

libusb_free_config_descriptor()

http://libusb.sourceforge.net/api-1.0/group__lib.html#ga9517c37281bba0b51cc62eba728be48bhttp://libusb.sourceforge.net/api-1.0/group__lib.html#ga9517c37281bba0b51cc62eba728be48bhttp://libusb.sourceforge.net/api-1.0/group__dev.html#gad3b8561d064bb3e1b8851ddeed3cd7d6http://libusb.sourceforge.net/api-1.0/group__desc.html#ga18d2b08a065857ff7ae4f3f719c115cc

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AMonoUsbConfigHandleclassisusedtomanageaconfigdescriptor.Tofreeaconfigdescriptor,calltheconfighandlesClose()method.

libusb_open()libusb_close()

AMonoUsbDeviceHandleclassisusedtomanagealibusb_device_handle.

C++

//OpenDevicelibusb_device_handle*device_handle;libusb_open(profileHandle,&device_handle);

//CloseDevicelibusb_close(device_handle);

C#

//OpenDeviceMonoUsbDeviceHandledeviceHandle=newMonoUsbDeviceHandle(profileHandle);

//CloseDevicedeviceHandle.Close();

libusb_ref_device()libusb_unref_device()

DevicereferencingishandledinternallybytheMonoUsbProfileHandleclass.

libusb_alloc_transfer()libusb_submit_transfer()libusb_cancel_transfer()libusb_free_transfer()

AsynchronousdeviceI/Ofunctionsareimplementedinthe

http://libusb.sourceforge.net/api-1.0/group__dev.html#ga8163100afdf933fabed0db7fa81c89d1http://libusb.sourceforge.net/api-1.0/group__dev.html#ga779bc4f1316bdb0ac383bddbd538620ehttp://libusb.sourceforge.net/api-1.0/group__dev.html#gaabaa4193adcabba1789cc1165ac41a03http://libusb.sourceforge.net/api-1.0/group__dev.html#ga3cc62e6a191b7a9f213e62b81ec30f4dhttp://libusb.sourceforge.net/api-1.0/group__asyncio.html#ga13cc69ea40c702181c430c950121c000http://libusb.sourceforge.net/api-1.0/group__asyncio.html#gabb0932601f2c7dad2fee4b27962848cehttp://libusb.sourceforge.net/api-1.0/group__asyncio.html#ga685eb7731f9a0593f75beb99727bbe54http://libusb.sourceforge.net/api-1.0/group__asyncio.html#ga6ab8b2cff4de9091298a06b2f4b86cd6

MonoUsbTransferstructure.

AsynchronoustransfersmustbefreedbytheuserwiththeFree()method.Failuretodosowillresultinmemoryleaks.



C#

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LibUsbDotNet2.2.8ShowInfoExample

MonoLibUsbShowInfo:ConsoleApplicationDescription

1. Initializestheusbcontext.

2. Writesthedevicedescriptorforallknownusbdevicestoconsoleoutput.

3. Exitstheusbcontext.

Example

C#

usingSystem;usingMonoLibUsb.Profile;usingUsb=MonoLibUsb.MonoUsbApi;

namespaceMonoLibUsb.ShowInfo{internalclassShowInfo{//ThefirsttimetheSessionpropertyisuseditcreatesanewsession//handleinstancein'__sessionHandle'andreturnsit.Subsequent//requestsimplyreturn'__sessionHandle'.privatestaticMonoUsbSessionHandle__sessionHandle;publicstaticMonoUsbSessionHandleSession{get{if(ReferenceEquals(__sessionHandle,__sessionHandle=newMonoUsbSessionHandle();return__sessionHandle;}}

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publicstaticvoidMain(string[]args){intret;MonoUsbProfileListprofileList=null;

//Initializethecontext.if(Session.IsInvalid)thrownewException("Failedtoinitializecontext."

MonoUsbApi.SetDebug(Session,0);//CreateaMonoUsbProfileListinstance.profileList=newMonoUsbProfileList();

//Thelistisinitiallyempty.//Eachtimerefreshiscalledthelistcontentsareupdated.ret=profileList.Refresh(Session);if(ret

Documents

LibUsbDotNet 2.2.8Introduction C# - documentation.help · C# LibUsbDotNet 2.2.8Introduction LibUsbDotNet is a .NET C# USB library for WinUsb, libusb-win32, and Linux libusb v1.x developers