I am working with HS USB on K61 in device mode and Windows PC the host. Does the software/driver have to respond to the PING requests from the host? How does the ACK/NACK/NYET works? Does the software send them?
Please let me know what USB software & driver you mentioned?
Thank you so much for your response. My question was whether controller issues ACK/NACK/NYET. Are PING packets from the Host handled by the controller? If so what are the possible reasons for a NACK response for a PING packet? Thank you.
Yes, an endpoint automatically NAKs when it has no data waiting to be sent (in its BD). See more detail here:How to NAK an HID report request
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