Re: Trouble loading firmware to USB device

From: Hans Petter Selasky <hps_at_selasky.org>
Date: Mon, 25 Apr 2022 08:21:04 UTC 
On 4/24/22 11:48, Hans Petter Selasky wrote:
> On 4/22/22 18:50, Farhan Khan wrote:
>> On Fri, 2022-04-22 at 08:43 +0200, Hans Petter Selasky wrote:
>>> If your device is ugenX.Y, usbdump is:
>>>
>>> usbdump -i usbusX -f Y -s 256 -vvv
>>>
>>> --HPS
>>
>> Based on the FRAME[1] size, it seems that the length is 1024 bytes.
>> That seems low, but it might not be for bulk transfers.
>>
>> The long-form output is here: https://bsd.to/9CVK Potentially there is
>> a problem here that I am not seeing.
>>
>> The main problem still remains, that loading the firmware is not
>> triggering the Rx Interrupt callback. Are these potentially related
>> issues?
>>

Hi,

>  status 0xeb023 <OPEN|TRANSFERRING|STARTED|SHORT_XFER_OK|BDMA_ENABLE|BDMA_SETUP|CURR_DMA_SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
> 12:25:07.785438 usbus3.3 SUBM-INTR-EP=00000083,SPD=HIGH,NFR=1,SLEN=0,IVAL=1
>  frame[0] READ 1024 bytes
>  flags 0xa <SHORT_XFER_OK|PIPE_BOF|0>

You are asking for 1024 bytes. Try asking for only 64 bytes instead, 
same as one wMaxPacket, before submitting the job.

--HPS