[U-Boot] [PATCH] usb:composite:fix Provide function data when addressing device with only one interface

Tom Rini trini at ti.com
Wed Mar 6 00:44:19 CET 2013


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On 03/05/2013 06:24 PM, Marek Vasut wrote:
> Dear Lukasz Majewski,
> 
>> Hi Marek,
>> 
>>> Dear Lukasz Majewski,
>>> 
>>>> This commit fixes problems with some non-standard requests
>>>> send with device address instead of interface address
>>>> (bmRequestType.Receipent field).
>>>> 
>>>> This happens with dfu-util (debian version: 0.5), which
>>>> address non standard requests (like w_value=0x21 and
>>>> bRequest=GET_DESCRIPTOR) to device. Without this fix, the
>>>> above request is STALLED, and hence causes dfu-util to assume
>>>> some standard configuration (packet size = 1024B instead of
>>>> 4096B) In turn it displays following errors: Error obtaining
>>>> DFU functional descriptor Warning: Assuming DFU version 1.0 
>>>> Warning: Transfer size can not be detected ... Warning:
>>>> Trying default transfer size 1024
>>>> 
>>>> This fix allows passing non-standard request to function
>>>> setup code, where it shall be handled.
>>>> 
>>>> Tested at: 	Trats (exynos4210) Tested with:DFU and UMS
>>>> gadgets
>>> 
>>> Can you please repost all the patches you want applied on 
>>> u-boot-usb ? I'm completely lost in all this DFU stuff.
>> 
>> This is only one patch to replace patch done by Pantelis:
>> 
>> Patch to replace (revert): dfu: Send correct DFU response from
>> composite_setup SHA1: fef31049fa06e516945114195eb14ac3549d0ad2
>> 
>> And this shall be replaced with posted patch.
>> 
>> Another patches (with UMS gadget support - done by Piotr
>> Wilczek), also shall be added to u-boot-usb tree:
>> 
>> http://patchwork.ozlabs.org/patch/219744/ 
>> http://patchwork.ozlabs.org/patch/219746/ 
>> http://patchwork.ozlabs.org/patch/219745/
> 
> Ok, please check the u-boot-usb ... if it's OK, I will send Tom a
> pullrq (finally). Tom, do you still accept those for .04 ?

As of earlier in the day it still had Pantelis' patch for sending
files larger than memory which breaks all filesystem-based writes, so
that needs to go.  Lukasz and I are discussing how to deal with that.

- -- 
Tom
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