USB custom HID increase report Size more than 255 bytes？

LLYC.1 · ‎2021-03-24

LLYC.1 · ‎2021-03-24

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LLYC.1 · ‎2021-03-24

Imen.D · ‎2021-03-25

Hello @LLYC.1 and welcome to the STM32 Community :)

The max descriptor size is 255. This is specific to the USB protocol.

Imen

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Thanks
Imen

TPham.4 · ‎2021-04-01

I notice the comment is incorrect. At first I thought this is to increase the size of the IN/OUT Endpoint but is is actually increasing the size of the descriptor. And the generated code is incorrect. It still left at 2.

It seems to be a bug in CubeMX.