Re: Trouble loading firmware to USB device

On 4/21/22 22:51, Farhan Khan wrote:
> I fooled around a bit with `-f Y`, because I was not certain if the
> offset was 0 or 1, but I think (could be wrong) the value for the
> interrupt and what the data is loaded over is interrupt 3.
> 
> It appears to me that the size of the interrupt is 1024 based on this:
> 
> -------
> $ sudo usbdump -i usbus3  -s 256 -vvv -f 3
> 16:46:25.723242 usbus3.3 SUBM-CTRL-
> EP=00000000,SPD=HIGH,NFR=2,SLEN=1024,IVAL=0
>   frame[0] WRITE 0 bytes
>   frame[1] WRITE 1024 bytes
>   flags 0x10 <PROXY_BUFFER|0>
>   status 0xea0a3
> <OPEN|TRANSFERRING|STARTED|CONTROL_XFR|BDMA_ENABLE|BDMA_SETUP|CURR_DMA_
> SET|CAN_CANCEL_IMMED|DOING_CALLBACK|0>
> --------
> 
> Should this change make a difference to the interrupt issue?
> 
> - Farhan

If your device is ugenX.Y, usbdump is:

usbdump -i usbusX -f Y -s 256 -vvv

--HPS