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For nearly all commands in U-Boot the '?' variable is handled the same
way with 0 meaning success, 1 meaning any failure. Explain this in the
general rules section of the cmdline documentation (with a link to a
counter example) and then remove the redundant wording from most
commands. We retain a section about the return value in a number of
places where we are doing something such as always returning a specific
value or we have useful additional information to go along with the
normal return codes.
Signed-off-by: Tom Rini <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Add the description of CLI commands to the generated index.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Currently the sound command accepts only one value each for duration and
frequency. Allowing more duration and frequency arguments enables playing a
tune.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Provide a man-page for the sound command.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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