[PATCH] cmd: mmc: update the mmc command's usage about argument

[Simon Glass]

Hi Jaehoon,

On Mon, 14 Dec 2020 at 21:17, Jaehoon Chung <jh80.chung at samsung.com> wrote:
>
> Hi Simon,
>
> On 12/15/20 1:00 PM, Simon Glass wrote:
> > Hi Jaehoon,
> >
> > On Mon, 14 Dec 2020 at 03:09, Jaehoon Chung <jh80.chung at samsung.com> wrote:
> >>
> >> It's confused what is optional or mandantary argument.
> >
> > how about: It's confusing whether arguments are optional or mandatory
>
> Okay, will update.
>
> >
> >> Update the command's usage to clarify how to use.
> >
> > Are you using <> to indicate optional? I see [] used more commonly.
>
> No, i'm using [] to indicated optional.
> AFFIK, "<> -> mandatory, []  -> optional", doesn't it?

Ah OK, got it.

Reviewed-by: Simon Glass <sjg at chromium.org>