linux-kernel - Re: [patch 1/2] staging: speakup: add function to convert dev name to number

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Message-ID: <20170614121819.tob426qpysswg5g6@var.youpi.perso.aquilenet.fr>
Date:   Wed, 14 Jun 2017 14:18:19 +0200
From:   Samuel Thibault <samuel.thibault@...-lyon.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     okash.khawaja@...il.com, Jiri Slaby <jslaby@...e.com>,
        linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        Kirk Reiser <kirk@...sers.ca>, speakup@...ux-speakup.org,
        Chris Brannon <chris@...-brannons.com>
Subject: Re: [patch 1/2] staging: speakup: add function to convert dev name
 to number

Greg KH, on mer. 14 juin 2017 13:48:02 +0200, wrote:
> On Wed, Jun 14, 2017 at 01:26:09PM +0200, Samuel Thibault wrote:
> > Greg KH, on mer. 14 juin 2017 12:15:41 +0200, wrote:
> > > Ah, no, nevermind, you just need the major/minor.  So why not just take
> > > that as the input here, and not a string?
> > 
> > Because real users don't know about major/minor numbers.
> 
> I'm not disagreeing, it's just that the kernel doesn't know about
> "device names" either :)

Well, it does for the console= parameter, for instance.  I know it's not
actually related with major/minor numbering, but it's still meant to
designate the same thing.

> And trying to have the kernel do the mapping based on strings like this
> is not ok, sorry.

So what is the solution?  Users would find it completely crazy to have
to provide major/minor numbers.

Samuel