Hi,
I am new to HID and have some questions regarding the ST HID Middleware package.
I am using an STM32F479F as a Custom HID device. I used the example from the STM32 USB training to get everything up and running. It works.
When the host (PC) performs a write, then there is a callback to the USBD_CUSTOM_HID_DataOut function. I can process the request, and when everything is finished, I would use the USBD_CUSTOM_HID_SendReport function to send the data out. Only then the callback to the USBD_CUSTOM_HID_DataIn appears to be triggered.
For my understanding, I get a write from the host, process the data, and when it is done, I transfer the data out. Independently from a host read operation. Is this true?
Is there a callback in the ST HID Middleware which is triggered when a host read request arrives?
Thank you.
