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Date:      Mon, 25 Apr 2022 10:21:04 +0200
From:      Hans Petter Selasky <hps@selasky.org>
To:        Farhan Khan <farhan@farhan.codes>, freebsd-usb@freebsd.org
Subject:   Re: Trouble loading firmware to USB device
Message-ID:  <9ca0e355-d780-f9c0-4d38-b99662f43edd@selasky.org>
In-Reply-To: <d5b1925e-18b0-e1d7-c5c4-b4b0d3247b27@selasky.org>
References:  <f47b9415c262267d5c2505463b54f58ceaf76315.camel@farhan.codes> <d27787a2-eb6b-25dc-2d0d-56af4184032b@selasky.org> <9315bf6d-b9a9-89a2-9a32-aca9fd9cc015@farhan.codes> <dfc1cd8a-75a9-6637-e721-83d134910185@selasky.org> <007551144c601a21e2ec8133a8359323de29725f.camel@farhan.codes> <d2253b56-3174-ae31-078c-ba43bb3c7fc2@selasky.org> <6fd2d680bf9edd969476f4544314235538c7fe41.camel@farhan.codes> <4f9a9bd7-28e4-99c7-6394-27368fafdbb1@selasky.org> <92f7b8ab463d057eea5490ff330e0ec955868efc.camel@farhan.codes> <d6157001-deaa-fed9-a8b0-cb46cc969206@selasky.org> <7abdf40246e7f60d129b8e02451445d1f3a75883.camel@farhan.codes> <7fc346b1-b70d-8e29-860d-5ed0988a7838@selasky.org> <ded0b21703604f8ef25897c4e8891b81bc8f19ef.camel@farhan.codes> <d5b1925e-18b0-e1d7-c5c4-b4b0d3247b27@selasky.org>

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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



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