From: Detlev Zundel <dzu@denx.de>
Date: Fri, 11 Jun 2010 14:27:40 +0200
Subject: [U-Boot] U-boot: Beagle board as a USB Mass Storage Device Class
In-Reply-To: <19F8576C6E063C45BE387C64729E7394044E7A1E5F@dbde02.ent.ti.com>
	(Ajay Kumar Gupta's message of "Wed, 9 Jun 2010 16:25:07 +0530")
References: <20100608072113.C0CFE14E867@gemini.denx.de>
	<437292.45437.qm@web38804.mail.mud.yahoo.com>
	<19F8576C6E063C45BE387C64729E7394044E7A1E5F@dbde02.ent.ti.com>
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Hi,

> Hi
>> Thanks for your response. I want to tell few more things about our
>> implementation.
>> 
>> Actually we are planning to simulate (but not implement) the file system
>> and implement the SCSI transparent command set decoder. When ever a file
>> is sent to the USB mass storage device, we will be taking the content of
>> that file to use for our application. The actual application does not
>> require all the features of a Mass Storage Device; we just want it to look
>> like a Mass Storage Device for transferring the data in the form of a file
>> and for some other usage.
>
> You can also use USB DFU for this where you can transfer files to RAM or
> NAND partitions. DFU is not yet supported in Denx's uboot tree but is
> Available in openmoko's tree
> [http://git.openmoko.org/?p=u-boot.git;a=summary].
> You will have to port back DFU feature from openmoko to Denx's tree.

Thanks for the hint Ajay.  Let me add that DFU is also a "standard"
protocol: http://www.usb.org/developers/devclass_docs/DFU_1.1.pdf

So many people will be able to enjoy this in addition to solving this
very specific problem of Yogesh.

Cheers
  Detlev

-- 
It's very important  that you sleep because that's  when your brain is
garbage  collecting.  And a  dream is  if you  are interrupted  in the
middle and have junk left in the registers.
                                          -- Gerald Sussman
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de