[U-Boot-Users] Editing u-boot parameters from Linux using MTD

[Wolfgang Denk]

In message <4023EE6F.6060604 at mesias.co.uk> you wrote:
> 
> >>Has anybody converted the environment code from u-boot into a Linux
> >>application that can change the u-boot parameters through the MTD
> >>layer?  
> > 
> > 
> > Yes. And you hold the tools right in your hand.
> > 
> > See tools/env/README
> 
> It seems to offer read access only - is anyone working on changing the 
> variables / adding new ones from linux?

What makes you think it does not include write access?

Did you actually look at the code? it reads:

...
 * Command line user interface to firmware (=U-Boot) environment.
 *
 * Implements:
 *      fw_printenv [ name ... ]
 *              - prints the values of the environment variables
 *                "name", or the whole environment if no names are
 *                specified
 *      fw_setenv name [ value ... ]
 *              - If a name without any values is given, the variable
 *                with this name is deleted from the environment;
 *                otherwise, all "value" arguments are concatenated,
 *                separated by sinlge blank characters, and the
 *                resulting string is assigned to the environment
 *                variable "name"
...

Guess what "fw_setenv" is doing?



Best regards,

Wolfgang Denk

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