Dear Charles Krinke,
In message <[email protected]> you
wrote:
>
> Let me add my $.02. I have a request to be able to boot a USB drive. So,
> reading a GPIO pin and making a decision in a script is a desirable thing.
> Certainly a 'MD 0x12345678' can read a pin but then making a decision in an
> environment string chain would help. Can we do this?
Sure we can do this. It's as trivial as for example
setexpr tmpvar *12345678.l "&" 00010000
if itest ${tmpvar} != 0; then do something ; fi
Best regards,
Wolfgang Denk
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DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
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