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Simone Freddio wrote:
> Hi Laurent,
> 
>    here the results of my tests:
> 
>    MaxPayloadTransferSize        Value Returned from device           
> Result
>    0                                            128                   
>                              uvcvideo: USB isochronous frame lost (-71).
>    1                                            128                   
>                              uvcvideo: USB isochronous frame lost (-71).
>    42                                          128                   
>                              uvcvideo: USB isochronous frame lost (-71).
>    1024                                      1024                    
>                           works right with few USB iso frame lost
>    0xFFFF                                   3072                       
>                       no error but also no capture :-(
> 
>    My conclusion is that MaxPayloadTransferSize, regardless of
> specification, is not readonly... seems to be that device round this
> value to the closest that is supported (see also my lsusb in file
> lsusb.txt).

I have tried this too and regardless what I put as the
PayloadTransferSize, the Minoru camera will always ask for 3072 back.

Jan


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