apohrebniak / usbd-storage Goto Github PK

Hi. I encoutered this problem: when host sends ScsiCommand::Write and for any reason the device wants to fail it - it can't. It calls Command::fail and then there is nothing happening - host does not recieve it, when Scsi::poll is called callback isn't called because self.transport.has_status() returns true. I suspect this is because BulkOnly::check_end_data_transfer checks buffer for avaliable read and ends data transfer only if buf.available_read() == 0.

I tried calling Command::read_data right before Command::fail, but this did not help.
I also tried pathing BulkOnly::check_end_data_transfer to just ignore this condition and to both ignore and clean the buffer.

I'll be glad to provide any additional information you might need to solve this issue.