DENX . U-Bootdoc . KeyboardSupport

1.12.3. Keyboard Support

Problem: make system behaviour dependent on keys pressed at power-on

Solution: in U-Boot you can define one or more keys or key combinations and commands which are executed when these keys are pressed at power-on:

Example: after a software update, the user can select to boot the old software version ("run old_version") by holding the keys with keycodes "4c" and "51" at power-on.

----- Revision r1.1 - 31 May 2004 - 21:40 - WolfgangDenk
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