How can I enumerate and identify (get pid, vid and serial) FT232R chips in windows and linux. I need to: 1. at start of program enumerate already plugged devices 2. detect plugging of usb device 3. get PID, VID, Serial
And I need to do that in windows and linux. I know there is libusb for windows as well as for linux, but I don't have that much experience with USB. Code example would be best.
You should use SetupAPIs in Windows for getting device information like hardware id(contains vid and pid both) and to detect the plugging/unplugging see example in this link Registering for Device Notification
To use SetupAPI you can use below code as reference and add/modify according to your requirement.
#include "stdafx.h"
#include <stdlib.h>
#include <Windows.h>
// Link to setapi.lib
#include <setupapi.h>
void GetDeviceInfo()
{
GUID gUSBGuid;
DWORD ClassGuidListSize = 1;
DWORD RequiredSize = NULL;
//if device shown under "USB" node in Devmgr, else see inf for classname
BOOL bres = SetupDiClassGuidsFromName((PCTSTR)"USB",
&gUSBGuid,//GUID will get populated
ClassGuidListSize,
&RequiredSize);
HDEVINFO hDevInfo = SetupDiGetClassDevs(&gUSBGuid,NULL,NULL,DIGCF_PRESENT);
if (INVALID_HANDLE_VALUE != hDevInfo)
{
BOOL bResult = FALSE;
SP_DEVICE_INTERFACE_DATA tDeviceInterfaceData;
tDeviceInterfaceData.cbSize = sizeof(SP_INTERFACE_DEVICE_DATA);
for (int nMemberIndex = 0; TRUE ; nMemberIndex++)
{
SP_DEVINFO_DATA tSpDevInfoData;
tSpDevInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
//Get the tSpDevInfoData for the instance ID
bResult = SetupDiEnumDeviceInfo(hDevInfo,nMemberIndex,&tSpDevInfoData);
if(bResult)
{
TCHAR *szHardwareId = new TCHAR[128] ;
DWORD dwtype = REG_SZ;
SetupDiGetDeviceRegistryProperty(hDevInfo,&tSpDevInfoData,SPDRP_HARDWAREID
,&dwtype,(PBYTE szHardwareId,256,NULL);
//code to process szHardwareId
delete szHardwareId;
break;
}
}
}
}
I dont have idea for Linux..:(
Hope this helps..
