X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fscpi%2Fscpi_usbtmc_libusb.c;h=6b0334440e94e9ce993ca534f1b4c58d16abd804;hb=8107a9a650f4db08423c3fc79c1b7e7d826ffd7f;hp=c1d4029ca1e89fedaec057fb7a28d8e7639a3805;hpb=9618fde4226a7cf1ab891be6d5581b41e071a0af;p=libsigrok.git

diff --git a/src/scpi/scpi_usbtmc_libusb.c b/src/scpi/scpi_usbtmc_libusb.c
index c1d4029c..6b033444 100644
--- a/src/scpi/scpi_usbtmc_libusb.c
+++ b/src/scpi/scpi_usbtmc_libusb.c
@@ -18,6 +18,7 @@
  */
 
 #include <config.h>
+#include <inttypes.h>
 #include <string.h>
 #include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
@@ -413,6 +414,18 @@ static int scpi_usbtmc_libusb_open(struct sr_scpi_dev_inst *scpi)
 	return SR_OK;
 }
 
+static int scpi_usbtmc_libusb_connection_id(struct sr_scpi_dev_inst *scpi,
+		char **connection_id)
+{
+	struct scpi_usbtmc_libusb *uscpi = scpi->priv;
+	struct sr_usb_dev_inst *usb = uscpi->usb;
+
+	*connection_id = g_strdup_printf("%s/%" PRIu8 ".%" PRIu8 "",
+		scpi->prefix, usb->bus, usb->address);
+
+	return SR_OK;
+}
+
 static int scpi_usbtmc_libusb_source_add(struct sr_session *session,
 		void *priv, int events, int timeout, sr_receive_data_callback cb,
 		void *cb_data)
@@ -661,6 +674,7 @@ SR_PRIV const struct sr_scpi_dev_inst scpi_usbtmc_libusb_dev = {
 	.scan          = scpi_usbtmc_libusb_scan,
 	.dev_inst_new  = scpi_usbtmc_libusb_dev_inst_new,
 	.open          = scpi_usbtmc_libusb_open,
+	.connection_id = scpi_usbtmc_libusb_connection_id,
 	.source_add    = scpi_usbtmc_libusb_source_add,
 	.source_remove = scpi_usbtmc_libusb_source_remove,
 	.send          = scpi_usbtmc_libusb_send,