Date: Thu, 30 Mar 2006 00:01:29 +0200
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
To: linux-kernel@vger.kernel.org, dave@mielke.cc
Subject: Re: How should an application ask for uinput module load?
Message-ID: <20060329220129.GF7158@bouh.residence.ens-lyon.fr>
Mail-Followup-To: Samuel Thibault <samuel.thibault@ens-lyon.org>,
	linux-kernel@vger.kernel.org, dave@mielke.cc
References: <20060328194210.GD4660@bouh.residence.ens-lyon.fr>
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Hi,

Samuel Thibault, le Tue 28 Mar 2006 21:42:10 +0200, a ?crit :
> what is the right way(tm) for an application to have the uinput
> module loaded, so that it can open /dev/input/uinput for emulating
> keypresses?
>
>...
> 
> I can see two approaches:
> 
> Using modprobe:
> - try to use /dev/input/uinput ; if it succeeds, fine.
> - else, if errno != ENOENT, fail
> - else, (ENOENT)
>   - try to call `cat /proc/sys/kernel/modprobe` uinput
>   - try to use /dev/input/uinput again ; if it succeeds, fine
>     - else, assume that it really wasn't compiled, and hence fail.
> 
> Triggering auto-load by creating one's own node.
> - try to use /dev/input/uinput ; if it suceeds, fine.
> - else, if errno != ENOENT, fail
> - else, (ENOENT)
>   - mknod /somewhere/safe/uinput c 10 223
>   - use /somewhere/safe/uinput ; if it succeeds, fine
>     - else, assume that it really wasn't compiled, and hence fail.
> 
> I guess the same problem arises for loop devices and all such virtual
> devices...

So? Nobody knows, or nobody cares?

Samuel
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