CQ Xiao

`ux_host_class_video_transfer_buffers_add` adds a list of buffers before transfer start, each buffer is for a video payload including 1 to 3 transactions. When a buffer is sent callback set by `ux_host_class_video_transfer_callback_set`...

Thanks for the feedback. We will add it later. BTW, memory for DFU instance is allocated in "initialization" and should be freed in "uninitialization".

USBX support CDC-ECM and ASIX USB to ethernet bridge. For WIFI dongle, is there any specific class information or vendor class information?

Are there any additional comments or feedback? If this solution is acceptable, could you please advise on the steps I can take to expedite the merging process?

Added some docs about the API usage. Added two different ack way in example code and detailed comments on them. Please check.

Any comments?

Any comments on manual ACK with reason code support here?

Is there any chance to merge this PR? It appears to be relatively independent and should not affect other ongoing discussions.

I created a PR to fix the issue, please check https://github.com/bytebeamio/rumqtt/pull/854 Now broker resending the publishes: ``` DEBUG rumqttc::v5::state > Disconnect with NormalDisconnection Event = Outgoing(Disconnect) Error = MqttState(ConnectionAborted) Incoming(ConnAck(ConnAck...

> you can use `set_connect_properties` to set all kind of v5 connection properties, eg. > > ```rust > let mut properties = ConnectProperties::new(); > properties.session_expiry_interval = Some(u32::MAX); > mqttoptions.set_connect_properties(properties); >...