[U-Boot] [PATCH v3 6/9] dfu: Send correct DFU response from composite_setup

Pantelis Antoniou panto at antoniou-consulting.com
Tue Dec 11 12:23:16 CET 2012


Hi Lukasz,

I bet transmission is performed, but with the default settings of dfu.
The DFU function descriptor is completely ignored.

An easy way to verify it is to check if the DFU version of the device
is the same one as the one stored in the descriptor. Same with the transmission
block size.

It might work, but only by accident.

I sure hope I'll have time today to send my captures as well.

Regards

-- Pantelis
 
On Dec 11, 2012, at 1:02 PM, Lukasz Majewski wrote:

> Hi Pantelis,
> 
>> Tomorrow I will prepare output of USB Ellisys analizer on my side, so
>> we could get clue what is going on. 
> 
> Please find attached output from USB ellisys analizer.
> 
> (It is possible to download WinXP based program to view logs without
> USB analizer box).
> 
> What I see in the current implementation stalls on GetDescriptor
> (Class: 0x21),but afterwards transmission is performed.
> 
> 
> 
> -- 
> Best regards,
> 
> Lukasz Majewski
> 
> Samsung Poland R&D Center | Linux Platform Group
> <DFU_mainline_trats.tar>



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