[U-Boot] [PATCH v4 0/20] Add environment call-back and flags capability

[Tom Rini]

On Tue, Dec 04, 2012 at 07:52:27PM -0600, Joe Hershberger wrote:
> 
> When a variable with a registered callback is inserted, deleted, or
> overwritten the callback is called and gives the system an opportunity
> to do something in response to the change.  It also has the opportunuty
> to reject the change by returning non-zero.
> 
> The flags on variables can control their type as well as their allowed
> access.
> 
>         The format of the list is:
>                 type_attribute = [s|d|x|b|i|m]
>                 attributes = type_attribute
>                 entry = variable_name[:attributes]
>                 list = entry[,list]
> 
>         The type attributes are:
>                 s - String (default)
>                 d - Decimal
>                 x - Hexadecimal
>                 b - Boolean ([1yYtT|0nNfF])
>                 i - IP address
>                 m - MAC address
> 
>         The access attributes are:
>                 a - Any (default)
>                 r - Read-only
>                 o - Write-once
>                 c - Change-default
> 
> Changes in v4:
> - Prevent crash on relocation import
> - Fixed help text
> - Add help text for env flags command
> - Add force support to setenv
> - Implement delete

This should fix the problem Wolfgang saw, correct?  And aside from the
comment fix Graeme found, this is ready for merge?  Thanks!

-- 
Tom
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