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doc: complete, typos
mention repeatable to README.commands and fix some typos Signed-off-by: Peter Meerwald <p.meerwald@bct-electronic.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Marek Vasut <marek.vasut@gmail.com>
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Commands are added to U-Boot by creating a new command structure.
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This is done by first including command.h
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Then using the U_BOOT_CMD() macro to fill in a cmd_tbl_t struct.
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This is done by first including command.h, then using the U_BOOT_CMD() macro
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to fill in a cmd_tbl_t struct.
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U_BOOT_CMD(name,maxargs,repeatable,command,"usage","help")
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name: is the name of the commad. THIS IS NOT a string.
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maxargs: the maximumn numbers of arguments this function takes
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maxargs: the maximum number of arguments this function takes
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repeatable: either 0 or 1 to indicate if autorepeat is allowed
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command: Function pointer (*cmd)(struct cmd_tbl_s *, int, int, char *[]);
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usage: Short description. This is a string
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help: long description. This is a string
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help: Long description. This is a string
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**** Behinde the scene ******
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**** Behind the scene ******
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The structure created is named with a special prefix (__u_boot_cmd_)
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and placed by the linker in a special section.
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