I'm trying to achieve a dual vender class in a single device and successes, one's interface is 3 and the other is 4, and dual are recognized by PC. One interface string is "ZPLINK CMSIS-DAP", and the other is "ZPLINK-WL CMSIS-DAP"(See Picture)
And I did some test, both of them can be accessed by there IN or OUT endpoints.
But when I use Keil or IAR, they only can recognize one WinUSB device and only access the last interface's ZPLINK-WL CMSIS-DAP, which interface is 4. After I deleted the interface 4, then Keil can recognize interface 3's ZPLINK CMSIS-DAP.
Is Keil or IAR can only access one WinUSB in a single device at once? Always choose the last one?
I'm trying to achieve a dual vender class in a single device and successes, one's interface is 3 and the other is 4, and dual are recognized by PC. One interface string is "ZPLINK CMSIS-DAP", and the other is "ZPLINK-WL CMSIS-DAP"(See Picture)
And I did some test, both of them can be accessed by there IN or OUT endpoints.
But when I use Keil or IAR, they only can recognize one WinUSB device and only access the last interface's ZPLINK-WL CMSIS-DAP, which interface is 4. After I deleted the interface 4, then Keil can recognize interface 3's ZPLINK CMSIS-DAP.
Is Keil or IAR can only access one WinUSB in a single device at once? Always choose the last one?