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author | Holger Schurig <holgerschurig@gmail.com> | 2014-05-13 10:28:42 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-05-14 10:03:43 +0200 |
commit | f1f532084a6e9ee8225f047353999b459455df7e (patch) | |
tree | f2b8b1f25c5c630209c6970e3a7ce57a3d55d367 /arch/arm/mach-at91/gpio.c | |
parent | ab23d0bb3f66cfb7a97a8aa6b8007687ed7a6925 (diff) | |
download | barebox-f1f532084a6e9ee8225f047353999b459455df7e.tar.gz barebox-f1f532084a6e9ee8225f047353999b459455df7e.tar.xz |
commands: harmonize in-barebox documentation
This patch does probably too much, but it's hard (and very
cumbersome/time consuming) to break it out. What is does is this:
* each command has one short description, e.g. "list MUX configuration"
* made sure the short descriptions start lowercase
* each command has one usage. That string contains just the
options, e.g. "[-npn]". It's not part of the long help text.
* that is, it doesn't say "[OPTIONS]" anymore, every usable option
is listed by character in this (short) option string (the long
description is in the long help text, as before)
* help texts have been reworked, to make them
- sometimes smaller
- sometimes describe the options better
- more often present themselves in a nicer format
* all long help texts are now created with BUSYBOX_CMD_HELP_
macros, no more 'static const __maybe_unused char cmd_foobar_help[]'
* made sure the long help texts starts uppercase
* because cmdtp->name and cmdtp->opts together provide the new usage,
all "Usage: foobar" texts have been removed from the long help texts
* BUSYBOX_CMD_HELP_TEXT() provides the trailing newline by itself, this
is nicer in the source code
* BUSYBOX_CMD_HELP_OPT() provides the trailing newline by itself
* made sure no line gets longer than 77 characters
* delibertely renamed cmdtp->usage, so that we can get compile-time
errors (e.g. in out-of-tree modules that use register_command()
* the 'help' command can now always emit the usage, even without
compiled long help texts
* 'help -v' gives a list of commands with their short description, this
is similar like the old "help" command before my patchset
* 'help -a' gives out help of all commands
Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-at91/gpio.c')
-rw-r--r-- | arch/arm/mach-at91/gpio.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c index c175cfd2cb..292e1975e9 100644 --- a/arch/arm/mach-at91/gpio.c +++ b/arch/arm/mach-at91/gpio.c @@ -509,13 +509,18 @@ static int do_at91mux(int argc, char *argv[]) } BAREBOX_CMD_HELP_START(at91mux) -BAREBOX_CMD_HELP_USAGE("at91mux [-p <pin> -b <bank>]\n") -BAREBOX_CMD_HELP_SHORT("dump current mux configuration if bank/pin specified dump pin details\n"); +BAREBOX_CMD_HELP_TEXT("Dump current MIX configuration. If a BANK or PIN has been") +BAREBOX_CMD_HELP_TEXT("specified dump pin details.") +BAREBOX_CMD_HELP_TEXT("") +BAREBOX_CMD_HELP_TEXT("Options:") +BAREBOX_CMD_HELP_OPT ("-p PIN", "pin number") +BAREBOX_CMD_HELP_OPT ("-b BANK", "bank number") BAREBOX_CMD_HELP_END BAREBOX_CMD_START(at91mux) .cmd = do_at91mux, - .usage = "dump current mux configuration", + BAREBOX_CMD_DESC("list MUX configuration") + BAREBOX_CMD_OPTS("[-pn]") BAREBOX_CMD_GROUP(CMD_GRP_INFO) BAREBOX_CMD_HELP(cmd_at91mux_help) BAREBOX_CMD_COMPLETE(empty_complete) |