+ ret = FALSE;
+ devopts = g_variant_get_fixed_array(gvar, &num_opts, sizeof(int32_t));
+ for (i = 0; i < num_opts; i++) {
+ if (devopts[i] == key) {
+ ret = TRUE;
+ break;
+ }
+ }
+ g_variant_unref(gvar);
+
+ return ret;
+}
+
+/** @private
+ * Allocate and init new device instance struct.
+ * @param[in] index @copydoc sr_dev_inst::index
+ * @param[in] status @copydoc sr_dev_inst::status
+ * @param[in] vendor @copydoc sr_dev_inst::vendor
+ * @param[in] model @copydoc sr_dev_inst::model
+ * @param[in] version @copydoc sr_dev_inst::version
+ *
+ * @retval NULL Error
+ * @retval struct sr_dev_inst *. Dynamically allocated, free using
+ * sr_dev_inst_free().
+ */
+SR_PRIV struct sr_dev_inst *sr_dev_inst_new(int index, int status,
+ const char *vendor, const char *model, const char *version)
+{
+ struct sr_dev_inst *sdi;
+
+ if (!(sdi = g_try_malloc(sizeof(struct sr_dev_inst)))) {
+ sr_err("Device instance malloc failed.");
+ return NULL;
+ }
+
+ sdi->driver = NULL;
+ sdi->index = index;
+ sdi->status = status;
+ sdi->inst_type = -1;
+ sdi->vendor = vendor ? g_strdup(vendor) : NULL;
+ sdi->model = model ? g_strdup(model) : NULL;
+ sdi->version = version ? g_strdup(version) : NULL;
+ sdi->probes = NULL;
+ sdi->probe_groups = NULL;
+ sdi->conn = NULL;
+ sdi->priv = NULL;
+
+ return sdi;
+}
+
+/** @private
+ * Free device instance struct created by sr_dev_inst().
+ * @param sdi struct* to free.
+ */
+SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi)
+{
+ struct sr_probe *probe;
+ GSList *l;
+
+ for (l = sdi->probes; l; l = l->next) {
+ probe = l->data;
+ g_free(probe->name);
+ g_free(probe->trigger);
+ g_free(probe);
+ }
+ g_slist_free(sdi->probes);
+
+ if (sdi->probe_groups)
+ g_slist_free(sdi->probe_groups);
+
+ g_free(sdi->vendor);
+ g_free(sdi->model);
+ g_free(sdi->version);
+ g_free(sdi);
+}
+
+#ifdef HAVE_LIBUSB_1_0
+
+/** @private
+ * Allocate and init struct for USB device instance.
+ * @param[in] bus @copydoc sr_usb_dev_inst::bus
+ * @param[in] address @copydoc sr_usb_dev_inst::address
+ * @param[in] hdl @copydoc sr_usb_dev_inst::devhdl
+ *
+ * @retval NULL Error
+ * @retval other struct sr_usb_dev_inst * for USB device instance.
+ */
+SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
+ uint8_t address, struct libusb_device_handle *hdl)
+{
+ struct sr_usb_dev_inst *udi;
+
+ if (!(udi = g_try_malloc(sizeof(struct sr_usb_dev_inst)))) {
+ sr_err("USB device instance malloc failed.");
+ return NULL;
+ }
+
+ udi->bus = bus;
+ udi->address = address;
+ udi->devhdl = hdl;
+
+ return udi;
+}
+
+/** @private
+ * Free struct * allocated by sr_usb_dev_inst().
+ * @param usb struct* to free. Must not be NULL.
+ */
+SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb)
+{
+ g_free(usb);
+}
+
+#endif
+
+#ifdef HAVE_LIBSERIALPORT
+
+/**
+ * @private
+ *
+ * Both parameters are copied to newly allocated strings, and freed
+ * automatically by sr_serial_dev_inst_free().
+ *
+ * @param[in] port OS-specific serial port specification. Examples:
+ * "/dev/ttyUSB0", "/dev/ttyACM1", "/dev/tty.Modem-0", "COM1".
+ * @param[in] serialcomm A serial communication parameters string, in the form
+ * of \<speed\>/\<data bits\>\<parity\>\<stopbits\>, for example
+ * "9600/8n1" or "600/7o2". This is an optional parameter;
+ * it may be filled in later.
+ *
+ * @return A pointer to a newly initialized struct sr_serial_dev_inst,
+ * or NULL on error.
+ */
+SR_PRIV struct sr_serial_dev_inst *sr_serial_dev_inst_new(const char *port,
+ const char *serialcomm)
+{
+ struct sr_serial_dev_inst *serial;
+
+ if (!port) {
+ sr_err("Serial port required.");
+ return NULL;
+ }
+
+ if (!(serial = g_try_malloc0(sizeof(struct sr_serial_dev_inst)))) {
+ sr_err("Serial device instance malloc failed.");
+ return NULL;