linux-kernel - Re: [PATCH linux-acpi] Correct wakeup set error and append a new column PCI ID

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Date:	Wed, 2 Jan 2008 17:09:43 +0100
From:	Pavel Machek <pavel@....cz>
To:	Yi Yang <yi.y.yang@...el.com>
Cc:	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	lenb@...nel.org, acpi-bugzilla@...ts.sourceforge.net
Subject: Re: [PATCH linux-acpi] Correct wakeup set error and append a new column PCI ID

On Wed 2008-01-02 10:03:59, Yi Yang wrote:
> On Wed, 2008-01-02 at 00:20 +0100, Pavel Machek wrote:
> > Hi!
> > 
> > > /proc/acpi/wakeup is also case-sensitive, case-insensitive is better.
> > 
> > Why?
> A user uses device bus id like 'C093' to enable or disable wakeup of the
> device, for example
> 
> echo "C093" > /proc/acpi/wakeup
> 
> but i think "c093" should also be ok. i.e.

Why do you think so? Unix is generally case-sensitive. I see ascii
text in .../wakeup. Maybe some bios vendor is crazy enough to have
wakeup devices called 'wake', 'Wake', 'wAke', 'waKe', 'wakE'?

> > Maybe this file should be left for compatibility and we should present
> > something reasonable in /sys? Can't you already get PCI ID from sysfs
> > node?
> PCI ID can be gotten from sysfs, but it is a unique identifier for a
> device, a user can get device name from /usr/share/hwdata/pci.ids in any
> dstribution by PCI ID, he/she is unnecessary to use bus number to get
> device name, bus number is platform-specific, but PCI ID is
> platform-independent.

If the same info can be gotten from 'sysfs node' field, new field
should not be added.


-- 
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