适配SEQ Number.

2014-03-18 15:50:10 +08:00
parent a4113d9247
commit d61bee185c
5 changed files with 28 additions and 10 deletions
@@ -2733,14 +2733,20 @@ usb_dev_handle* CSO7_Proto::_open_usb_dev(unsigned short sSeqNumber)
      {
        udev = usb_open(dev);
        usb_claim_interface(udev, 0);
-                
-        if(Get_SeqNumber(udev) != sSeqNumber)
-        {
-          usb_close(udev);
-        }
-        else
+        if (sSeqNumber>255)
        {
          return udev;
+        } 
+        else
+        {
+          if(Get_SeqNumber(udev) != sSeqNumber)
+          {
+            usb_close(udev);
+          }
+          else
+          {
+            return udev;
+          }
        }
      }
    }
@@ -2794,7 +2800,7 @@ SSI_STATUS_MOTION CSO7_Proto::Init_SO7Usb()
  usb_init();                       // initialize the library 
  usb_status = usb_find_busses();   // find all busses 
  usb_status = usb_find_devices();  // find all connected devices  
-  g_dev = _open_usb_dev(USB_SEQ_NUMBER);
+  g_dev = _open_usb_dev();
  if (!g_dev)
  {
    MessageBox(NULL, _T("Unable to open device"), _T("Message"), MB_OK|MB_ICONERROR);