[Spice-devel] [PATCH usbredir v2] usbredirserver: show bus:device of the USB device if specifying vid:pid

[Chen Hanxiao]

From: Chen Hanxiao <chenhanxiao at gmail.com>

We use libusb_open_device_with_vid_pid, if multiple devices
have the same vid:pid, it will only the first one.

This patch will show the bus:device of the chosen one.

Signed-off-by: Chen Hanxiao <chenhanxiao at gmail.com>
---
v2: control output messages by verbose

 usbredirserver/usbredirserver.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/usbredirserver/usbredirserver.c b/usbredirserver/usbredirserver.c
index 13965dc..4685e0d 100644
--- a/usbredirserver/usbredirserver.c
+++ b/usbredirserver/usbredirserver.c
@@ -321,6 +321,7 @@ int main(int argc, char *argv[])
 
         /* Try to find the specified usb device */
         if (usbvendor != -1) {
+            libusb_device *dev;
             handle = libusb_open_device_with_vid_pid(ctx, usbvendor,
                                                      usbproduct);
             if (!handle) {
@@ -328,6 +329,14 @@ int main(int argc, char *argv[])
                     "Could not open an usb-device with vid:pid %04x:%04x\n",
                     usbvendor, usbproduct);
             }
+            if (verbose >= usbredirparser_info) {
+                dev = libusb_get_device(handle);
+                fprintf(stderr, "Open a usb-device with vid:pid %04x:%04x on "
+                        "bus %03x device %03x\n",
+                        usbvendor, usbproduct,
+                        libusb_get_bus_number(dev),
+                        libusb_get_device_address(dev));
+            }
         } else {
             libusb_device **list = NULL;
             ssize_t i, n;
-- 
2.13.6