BOOL UsbDeviceList::FindFilterForInterface(LPCUSB_DEVICE lpDevice, LPCUSB_INTERFACE lpInterface, LPDWORD index)
{
for (DWORD i = 0; i < mNumInterfaceFilters; i++) {
BOOL match = MatchFilterField(true, lpInterface->Descriptor.bInterfaceClass, &mInterfaceFilters[i].bInterfaceClass);
match &= MatchFilterField(match, lpInterface->Descriptor.bInterfaceSubClass, &mInterfaceFilters[i].bInterfaceSubClass);
match &= MatchFilterField(match, lpInterface->Descriptor.bInterfaceProtocol, &mInterfaceFilters[i].bInterfaceProtocol);
match &= MatchFilterField(match, lpDevice->Descriptor.idVendor, &mInterfaceFilters[i].idVendor);
match &= MatchFilterField(match, lpDevice->Descriptor.idProduct, &mInterfaceFilters[i].idProduct);
if (match) {
(*index) = i;
return TRUE;
}
}
// No match
return FALSE;
}
BOOL UsbDeviceList::FindFilterForInterface(LPCUSB_DEVICE lpDevice, LPCUSB_INTERFACE lpInterface, LPINTERFACE_FILTER* filter)
{
// Filter list is maintained in priority order
PFILTER_NODE next = mInterfaceFilters;
while (next) {
BOOL match = MatchFilterField(true, lpInterface->Descriptor.bInterfaceClass, &next->filter.bInterfaceClass);
match &= MatchFilterField(match, lpInterface->Descriptor.bInterfaceSubClass, &next->filter.bInterfaceSubClass);
match &= MatchFilterField(match, lpInterface->Descriptor.bInterfaceProtocol, &next->filter.bInterfaceProtocol);
match &= MatchFilterField(match, lpDevice->Descriptor.idVendor, &next->filter.idVendor);
match &= MatchFilterField(match, lpDevice->Descriptor.idProduct, &next->filter.idProduct);
if (match) {
(*filter) = &next->filter;
return TRUE;
}
next = next->next;
}
// No match
return FALSE;
}