linux-kernel - Re: [PATCH 1/3] pda_power: add support for writeable properties

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Date:	Tue, 11 May 2010 22:32:48 +0400
From:	Anton Vorontsov <cbouatmailru@...il.com>
To:	Daniel Mack <daniel@...aq.de>
Cc:	linux-kernel@...r.kernel.org,
	David Woodhouse <dwmw2@...radead.org>,
	Alexey Starikovskiy <astarikovskiy@...e.de>,
	Len Brown <len.brown@...el.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Matt Reimer <mreimer@...p.net>,
	Evgeniy Polyakov <zbr@...emap.net>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 1/3] pda_power: add support for writeable properties

On Tue, May 11, 2010 at 07:58:12PM +0200, Daniel Mack wrote:
[...]
> > Plus, that way you don't need is_writable().
> 
> Ugh, really? I would _much_ prefer to actually _see_ which property is
> writeable, just from looking at the file attributes in sysfs.

Well, yeah... that would be also good for userland apps (GUI
apps, in particular). Though, I'm not yet sure how to implement
it without modifying a global array...

To avoid the race that I described in previous email we could
insert some mutex, but I'd like to avoid the global stuff.

-- 
Anton Vorontsov
email: cbouatmailru@...il.com
irc://irc.freenode.net/bd2
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