Programming Info D2XXPG31.pdf

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7 D2XX Programmer's Guide2.2 FT_GetVIDPIDA Linux specific command to retrieve the current VID and PID within the internal device list table.FT_STATUS FT_GetVIDPID(DWORD * pdwVID, DWORD * pdwPID)ParameterspdwVIDpdwPIDPointer to DWORD that will contain the internal VID.Pointer to DWORD that will contain the internal PID.Return ValueFT_OK if successful, otherwise the return value is an FT error code.RemarksSee FT_SetVIDPID 6 .© Future Technology Devices International Ltd. 2005
Classic Interface Functions82.3 FT_ListDevicesGet information concerning the devices currently connected. This function can return informationsuch as the number of devices connected, the device serial number and device description strings,and the location IDs of connected devices.FT_STATUS FT_ListDevices (PVOID pvArg1, PVOID pvArg2, DWORD dwFlags)ParameterspvArg1pvArg2dwFlagsMeaning depends on dwFlags.Meaning depends on dwFlags.Determines format of returned information.Return ValueFT_OK if successful, otherwise the return value is an FT error code.RemarksThis function can be used in a number of ways to return different types of information. A morepowerful way to get device information is to use the FT_CreateDeviceInfoList 48 ,FT_GetDeviceInfoList 49 and FT_GetDeviceInfoDetail 51 functions as they return all the availableinformation on devices.In its simplest form, it can be used to return the number of devices currently connected. IfFT_LIST_NUMBER_ONLY bit is set in dwFlags, the parameter pvArg1 is interpreted as a pointerto a DWORD location to store the number of devices currently connected.It can be used to return device information: if FT_OPEN_BY_SERIAL_NUMBER bit is set indwFlags, the serial number string will be returned; if FT_OPEN_BY_DESCRIPTION bit is set indwFlags, the product description string will be returned; if FT_OPEN_BY_LOCATION bit is set indwFlags, the Location ID will be returned; if none of these bits is set, the serial number string willbe returned by default.It can be used to return device string information for a single device. If FT_LIST_BY_INDEX andFT_OPEN_BY_SERIAL_NUMBER or FT_OPEN_BY_DESCRIPTION bits are set in dwFlags, theparameter pvArg1 is interpreted as the index of the device, and the parameter pvArg2 isinterpreted as a pointer to a buffer to contain the appropriate string. Indexes are zero-based, andthe error code FT_DEVICE_NOT_FOUND is returned for an invalid index.It can be used to return device string information for all connected devices. If FT_LIST_ALL andFT_OPEN_BY_SERIAL_NUMBER or FT_OPEN_BY_DESCRIPTION bits are set in dwFlags, theparameter pvArg1 is interpreted as a pointer to an array of pointers to buffers to contain theappropriate strings and the parameter pvArg2 is interpreted as a pointer to a DWORD location tostore the number of devices currently connected. Note that, for pvArg1, the last entry in the arrayof pointers to buffers should be a NULL pointer so the array will contain one more location than thenumber of devices connected.The location ID of a device is returned if FT_LIST_BY_INDEX and FT_OPEN_BY_LOCATION bitsare set in dwFlags. In this case the parameter pvArg1 is interpreted as the index of the device, andthe parameter pvArg2 is interpreted as a pointer to a variable of type long to contain the location© Future Technology Devices International Ltd. 2005
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Extended API Functions664.1 FT_GetL
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Extended API Functions684.3 FT_GetB
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Extended API Functions70if(ftStatus
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FT-Win32 API Functions725 FT-Win32
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FT-Win32 API Functions74ExamplesThe
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FT-Win32 API Functions765.3 FT_W32_
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FT-Win32 API Functions78}© Future
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FT-Win32 API Functions80overlapped
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FT-Win32 API Functions885.11 FT_W32
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Appendix986 AppendixThis section co
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Appendix100FT_DEVICE_UNKNOWN = 3FT_
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Appendix102char *SerialNumber;// "F
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Appendix104FTCOMSTAT (FT-Win32 Prog
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Appendix106typedef PVOID FT_HANDLE;
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Appendix108#define FT_EVENT_RXCHAR
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Appendix110FTD2XX_APIFT_STATUS WINA
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Appendix112//// structure to hold p
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Appendix114char *SerialNumber);FTD2
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Appendix116BOOL WINAPI FT_W32_Close
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Appendix118BOOL WINAPI FT_W32_GetCo
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Index 120Index- B -Baud Rate 19, 20
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