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From: Alexey Starikovskiy <astarikovskiy@suse.de>
To: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Alexey Starikovskiy <aystarik@gmail.com>,
	Alan Jenkins <sourcejedi.lkml@googlemail.com>,
	Len Brown <lenb@kernel.org>,
	Linux-acpi@vger.kernel.org
Subject: Re: [PATCH 4/4] ACPI: Battery: Add support for _BIX extended info method
Date: Mon, 15 Mar 2010 23:17:47 +0300	[thread overview]
Message-ID: <4B9E95EB.8000604@suse.de> (raw)
In-Reply-To: <20100315113837.GA8296@khazad-dum.debian.net>

Henrique de Moraes Holschuh пишет:
> That just means the ACPI sysfs conversion on that area was not as good as it
> should have been.  It is hardly the only place where the sysfs ABI is not
> well implemented, but that doesn't mean the breakage should remain, or that
> it should be made worse.
> What is the technical case to returning invalid values for something that is
> not supported when you could return a proper error on open() instead (since
Power Class interface does not give me control over open() as far as I know.
> you're not going to do the Right Thing and not register that attribute it in
> the first place)?  Not only the "-1" way wastes more system resources (all
> clients have to do open+read+close), it also needs userspace to special case
> something, and that is always a Bad Idea for *many* reasons.
If you know how this could be done, please show the patch...

Thanks,
Alex.

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  reply	other threads:[~2010-03-15 20:17 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-15 10:31 [PATCH 1/4] ACPI: Battery: Add bit flags Alexey Starikovskiy
2009-10-15 10:31 ` [PATCH 2/4] POWER: Add support for cycle_count Alexey Starikovskiy
2010-01-15 21:59   ` Len Brown
2009-10-15 10:31 ` [PATCH 3/4] ACPI: SBS: Export cycle_count Alexey Starikovskiy
2010-01-15 21:59   ` Len Brown
2009-10-15 10:31 ` [PATCH 4/4] ACPI: Battery: Add support for _BIX extended info method Alexey Starikovskiy
2009-10-16  9:08   ` Alan Jenkins
2009-10-16  9:46     ` [PATCH] " Alexey Starikovskiy
2009-10-17 15:41     ` [PATCH 4/4] " Henrique de Moraes Holschuh
2010-03-14 22:15       ` Alexey Starikovskiy
2010-03-15 11:38         ` Henrique de Moraes Holschuh
2010-03-15 20:17           ` Alexey Starikovskiy [this message]
2010-03-16  0:12             ` Henrique de Moraes Holschuh
2010-01-15 22:03   ` Len Brown
2010-01-15 21:59 ` [PATCH 1/4] ACPI: Battery: Add bit flags Len Brown

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