[U-Boot-Users] Add a new command to U-Boot

Hi all!

I have one doubt. How can I add a new command to U-Boot?

Do I have to use only the macro U_BOOT_CMD() like files .../common/cmd_* or do I have to do more things, like defines, etc.?

And after this is compliled with no error, if I type help in U-Boot's shell, do I see this command like the others?

Best regards, Carlos Silva