+static int dvb_usb_force_pid_filter_usage;
+module_param_named(force_pid_filter_usage, dvb_usb_force_pid_filter_usage, int, 0444);
+MODULE_PARM_DESC(disable_rc_polling, "force all dvb-usb-devices to use a PID filter, if any (default: 0).");
+
+static int dvb_usb_adapter_init(struct dvb_usb_device *d)
+{
+ struct dvb_usb_adapter *adap;
+ int ret,n;
+
+ for (n = 0; n < d->props.num_adapters; n++) {
+ adap = &d->adapter[n];
+ adap->dev = d;
+ adap->id = n;
+
+ memcpy(&adap->props, &d->props.adapter[n], sizeof(struct dvb_usb_adapter_properties));
+
+/* speed - when running at FULL speed we need a HW PID filter */
+ if (d->udev->speed == USB_SPEED_FULL && !(adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER)) {
+ err("This USB2.0 device cannot be run on a USB1.1 port. (it lacks a hardware PID filter)");
+ return -ENODEV;
+ }
+
+ if ((d->udev->speed == USB_SPEED_FULL && adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) ||
+ (adap->props.caps & DVB_USB_ADAP_NEED_PID_FILTERING)) {
+ info("will use the device's hardware PID filter (table count: %d).",adap->props.pid_filter_count);
+ adap->pid_filtering = 1;
+ adap->max_feed_count = adap->props.pid_filter_count;
+ } else {
+ info("will pass the complete MPEG2 transport stream to the software demuxer.");
+ adap->pid_filtering = 0;
+ adap->max_feed_count = 255;
+ }
+
+ if (!adap->pid_filtering &&
+ dvb_usb_force_pid_filter_usage &&
+ adap->props.caps & DVB_USB_ADAP_HAS_PID_FILTER) {
+ info("pid filter enabled by module option.");
+ adap->pid_filtering = 1;
+ adap->max_feed_count = adap->props.pid_filter_count;
+ }
+
+ if (adap->props.size_of_priv > 0) {
+ adap->priv = kzalloc(adap->props.size_of_priv,GFP_KERNEL);
+ if (adap->priv == NULL) {
+ err("no memory for priv for adapter %d.",n);
+ return -ENOMEM;
+ }
+ }
+
+ if ((ret = dvb_usb_adapter_stream_init(adap)) ||
+ (ret = dvb_usb_adapter_dvb_init(adap)) ||
+ (ret = dvb_usb_adapter_frontend_init(adap))) {
+ return ret;
+ }
+
+ d->num_adapters_initialized++;
+ d->state |= DVB_USB_STATE_DVB;
+ }
+
+ /*
+ * when reloading the driver w/o replugging the device
+ * sometimes a timeout occures, this helps
+ */
+ if (d->props.generic_bulk_ctrl_endpoint != 0) {
+ usb_clear_halt(d->udev,usb_sndbulkpipe(d->udev,d->props.generic_bulk_ctrl_endpoint));
+ usb_clear_halt(d->udev,usb_rcvbulkpipe(d->udev,d->props.generic_bulk_ctrl_endpoint));
+ }
+
+ return 0;
+}
+
+static int dvb_usb_adapter_exit(struct dvb_usb_device *d)
+{
+ int n;
+ for (n = 0; n < d->num_adapters_initialized; n++) {
+ dvb_usb_adapter_frontend_exit(&d->adapter[n]);
+ dvb_usb_adapter_dvb_exit(&d->adapter[n]);
+ dvb_usb_adapter_stream_exit(&d->adapter[n]);
+ kfree(d->adapter[n].priv);
+ }
+ d->num_adapters_initialized = 0;
+ d->state &= ~DVB_USB_STATE_DVB;
+ return 0;
+}
+
+