On 6/27/19 3:20 PM, Hans Petter Selasky wrote: > On 2019-06-27 15:16, Stephane D'Alu wrote: > [...] > Hi, > > For sending a interrupt endpoint message you need to allocate an own USB > transfer. The usbd_req_set_report() only works on the control endpoint. > Do you mean? - usbd_transfer_setup + usbd_transer_start ? -- Stephane D'Alu