hid: Implement HidD_GetNumInputBuffers.

dlls/hid/hid.spec

@@ -8,7 +8,7 @@
 @ stdcall HidD_GetInputReport(long ptr long)
 @ stdcall HidD_GetManufacturerString(long ptr long)
 @ stub HidD_GetMsGenreDescriptor
-@ stub HidD_GetNumInputBuffers
+@ stdcall HidD_GetNumInputBuffers(long ptr)
 @ stub HidD_GetPhysicalDescriptor
 @ stdcall HidD_GetPreparsedData(ptr ptr)
 @ stdcall HidD_GetProductString(long ptr long)

dlls/hid/hidd.c

@@ -87,6 +87,12 @@ BOOLEAN WINAPI HidD_GetManufacturerString(HANDLE HidDeviceObject, PVOID Buffer,
     return DeviceIoControl(HidDeviceObject, IOCTL_HID_GET_MANUFACTURER_STRING, NULL, 0, Buffer, BufferLength, NULL, NULL);
 }
 
+BOOLEAN WINAPI HidD_GetNumInputBuffers(HANDLE HidDeviceObject, ULONG *NumberBuffers)
+{
+    TRACE("(%p %p)\n", HidDeviceObject, NumberBuffers);
+    return DeviceIoControl(HidDeviceObject, IOCTL_GET_NUM_DEVICE_INPUT_BUFFERS, NULL, 0, NumberBuffers, sizeof(*NumberBuffers), NULL, NULL);
+}
+
 BOOLEAN WINAPI HidD_SetFeature(HANDLE HidDeviceObject, PVOID ReportBuffer, ULONG ReportBufferLength)
 {
     TRACE("(%p %p %u)\n", HidDeviceObject, ReportBuffer, ReportBufferLength);

include/ddk/hidsdi.h

@@ -38,6 +38,7 @@ BOOLEAN WINAPI HidD_GetFeature(HANDLE HidDeviceObject, PVOID ReportBuffer, ULONG
 void WINAPI HidD_GetHidGuid(LPGUID guid);
 BOOLEAN WINAPI HidD_GetInputReport(HANDLE HidDeviceObject, PVOID ReportBuffer, ULONG ReportBufferLength);
 BOOLEAN WINAPI HidD_GetManufacturerString(HANDLE HidDeviceObject, PVOID Buffer, ULONG BufferLength);
+BOOLEAN WINAPI HidD_GetNumInputBuffers(HANDLE HidDeviceObject, ULONG *NumberBuffers);
 BOOLEAN WINAPI HidD_GetProductString(HANDLE HidDeviceObject, PVOID Buffer, ULONG BufferLength);
 BOOLEAN WINAPI HidD_GetSerialNumberString(HANDLE HidDeviceObject, PVOID Buffer, ULONG BufferLength);
 BOOLEAN WINAPI HidD_SetFeature(HANDLE HidDeviceObject, PVOID ReportBuffer, ULONG ReportBufferLength);