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

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!