多个wch_link插在同一台电脑上，使用mdk调试的时候，除了通过SN区分哪一个dap外，能不能通过wch-linkUtility修改一DAP名字啊？

The firmware does not utilize the UUID of the controller. Instead a constand string in ROM is used. So all links will get the same SN, Exactly for that purpose i have patched the fw binary.

"0001A0000001" "0001A0000002" ... works perfectly for me and gives also different comport names.

I am using wchlinks rev 1 with CH549 controllers. 

Ofcourse it would be better if WCH would fix that but i guess 2.7 will be the last fw

see strange descriptor sets for WCH-Link (v2.6) DAP mode - 沁恒微电子社区

您好，目前暂时不支持通过wch-linkUtility修改一DAP名字，该建议这边会向相关同事反馈。

好的，谢谢。因为现在同时调试一主二从三个设备，只能使用三个不同品牌的dap，不然从SN上区分实在是太麻烦了。