HidD_GetAttributes fails for Logitech B100 mouse

Question

I have two HID compliant devices from logitech ( VendorID 0x046d == 1133 ) : the K120 keyboard ( ProductID 0xC31C == 49948 ) and the B100 mouse ( ProductID 0xc05a == 49242 )

I can successfully talk to the keyboard using the HID class support routines https://msdn.microsoft.com/en-us/library/windows/hardware/ff538865(v=vs.85).aspx

Although the control panel shows the mouse installs properly, and it certainly works as a mouse, every HID class routine returns failure.

This code shows HidD_GetAttributes working on the keyboard but not the mouse

#include <iostream>
#include <windows.h>
#include <setupapi.h>
#include <ddk/hidsdi.h>

using namespace std;

int main()
{
    // get info set for all present HIDs

    GUID HID_GUID;
    HidD_GetHidGuid( & HID_GUID );
    HDEVINFO DeviceInfoSet = SetupDiGetClassDevs(
                                 &HID_GUID,
                                 NULL,NULL,
                                 DIGCF_DEVICEINTERFACE | DIGCF_PRESENT);

    SP_DEVICE_INTERFACE_DATA DeviceInfoData;
    DeviceInfoData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
    int DeviceIndex = 0;

    // loop over present HIDs
    while ( SetupDiEnumDeviceInterfaces(
                DeviceInfoSet,
                NULL,
                &HID_GUID,
                DeviceIndex,
                &DeviceInfoData))
    {
        DeviceIndex++;


        //Get the details with null values to get the required size of the buffer
        PSP_INTERFACE_DEVICE_DETAIL_DATA deviceDetail;
        ULONG requiredSize = 0;
        SetupDiGetDeviceInterfaceDetail (DeviceInfoSet,
                                         &DeviceInfoData,
                                         NULL, //interfaceDetail,
                                         0, //interfaceDetailSize,
                                         &requiredSize,
                                         0); //infoData))

        //Allocate the buffer
        deviceDetail = (PSP_INTERFACE_DEVICE_DETAIL_DATA)malloc(requiredSize);
        deviceDetail->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);

        //Fill the buffer with the device details
        if (!SetupDiGetDeviceInterfaceDetail (DeviceInfoSet,
                                              &DeviceInfoData,
                                              deviceDetail,
                                              requiredSize,
                                              &requiredSize,
                                              NULL))
        {
            cout << "SetupDiGetDeviceInterfaceDetail failed";
            continue;
        }

        // open the HID handle
        string myPath = deviceDetail->DevicePath;
        HANDLE myHandle = CreateFile(myPath.c_str(),
                                     GENERIC_READ | GENERIC_WRITE,
                                     FILE_SHARE_READ | FILE_SHARE_WRITE,
                                     NULL,
                                     OPEN_EXISTING,
                                     FILE_ATTRIBUTE_NORMAL,
                                     NULL);
        if( ! myHandle )
        {
            cout << "Create File failed";
            continue;
        }

        // get attributes of HID
        int myVendorID;
        int myProductID;
        _HIDD_ATTRIBUTES attributes;
        attributes.Size = sizeof( _HIDD_ATTRIBUTES );
        if( HidD_GetAttributes(
                    myHandle,
                    &attributes ) )
        {
            myVendorID = attributes.VendorID;
            myProductID = attributes.ProductID;
        }
        else
        {
            // failure
            myVendorID = -1;
            myProductID = -1;
        }

        // display logitech devices
        if( myPath.find("vid_046d") != -1 )
            cout << myPath.substr(0,30) << "... VID: " << myVendorID
                 << " PID " << myProductID << endl << endl;

    }

    return 0;
}

Output is:

\\?\hid#vid_046d&pid_c05a#7&be... VID: -1 PID -1

\\?\hid#vid_046d&pid_c31c&mi_0... VID: 1133 PID 49948

\\?\hid#vid_046d&pid_c31c&mi_0... VID: 1133 PID 49948

\\?\hid#vid_046d&pid_c31c&mi_0... VID: 1133 PID 49948

\\?\hid#vid_046d&pid_c31c&mi_0... VID: -1 PID -1

Why can I not access the mouse?

How did you create this project ? in Visual Studio ? Is this a win32-project ? I try to talk to my HID-Keyboard and need a starting point. — Andre

monty monty · Accepted Answer · 2018-07-07T03:51:45

I've been struggling with this for a few days. I believe this is related to Windows opening mice and keyboards in exclusive mode.

I found that several of my keyboards appeared to work, but only because they were exposing HID endpoints that weren't mouse/keyboard, in addition to the "real" descriptors.

You can confirm this by also grabbing the SPDRP_DEVICEDESC property using SetupDiGetDeviceRegistryProperty. For my system, all the red herrings were HID compliant devices or System Controllers, and the failures were all HID compliant mouse or keyboard.

Try opening the file as mode 0 (instead of generic read/write). The functions then worked for me.

HidD_GetAttributes fails for Logitech B100 mouse

1 Answers