-struct sigrok_device_instance *zp_open_device(int device_index)
-{
- struct sigrok_device_instance *sdi;
- libusb_device **devlist;
- struct libusb_device_descriptor des;
- unsigned int j;
- int err, i;
-
- if (!(sdi = get_sigrok_device_instance(device_instances, device_index)))
- return NULL;
-
- libusb_get_device_list(usb_context, &devlist);
- if (sdi->status == ST_INACTIVE) {
- /* Find the device by vendor, product, bus and address. */
- libusb_get_device_list(usb_context, &devlist);
- for (i = 0; devlist[i]; i++) {
- if ((err = libusb_get_device_descriptor(devlist[i],
- &des))) {
- g_warning("failed to get device descriptor:"
- "%d", err);
- continue;
- }
-
- if (des.idVendor == USB_VENDOR) {
- if (libusb_get_bus_number(devlist[i]) ==
- sdi->usb->bus
- && libusb_get_device_address(devlist[i]) ==
- sdi->usb->address) {
- for (j = 0;
- j < ARRAY_SIZE(zeroplus_models);
- j++) {
- if (des.idProduct ==
- zeroplus_models[j].pid) {
- g_message
- ("Found PID=%04X (%s)",
- des.idProduct,
- zeroplus_models[j].
- model_name);
- num_channels =
- zeroplus_models[j].
- channels;
- memory_size =
- zeroplus_models[j].
- sample_depth * 1024;
- break;
- }
- }
- if (num_channels == 0) {
- g_warning
- ("Unknown ZeroPlus device %04X",
- des.idProduct);
- continue;
- }
- /* Found it */
- if (!(err = libusb_open(devlist[i],
- &(sdi->usb->devhdl)))) {
- sdi->status = ST_ACTIVE;
- g_message("opened device %d on"
- " %d.%d interface %d",
- sdi->index, sdi->usb->bus,
- sdi->usb->address,
- USB_INTERFACE);
- } else {
- g_warning("failed to open "
- "device: %d", err);
- sdi = NULL;
- }
- }
- }
- }
- } else {
- /* Status must be ST_ACTIVE, i.e. already in use... */
- sdi = NULL;
- }
- libusb_free_device_list(devlist, 1);
-
- if (sdi && sdi->status != ST_ACTIVE)
- sdi = NULL;
-
- return sdi;
-}
-
-static void close_device(struct sigrok_device_instance *sdi)
-{
- if (sdi->usb->devhdl) {
- g_message("closing device %d on %d.%d interface %d", sdi->index,
- sdi->usb->bus, sdi->usb->address, USB_INTERFACE);
- libusb_release_interface(sdi->usb->devhdl, USB_INTERFACE);
- libusb_close(sdi->usb->devhdl);
- sdi->usb->devhdl = NULL;
- sdi->status = ST_INACTIVE;
- }
-}
-
-static int configure_probes(GSList *probes)