linux-kernel - Re: [PATCH v2] Re: Battery class driver.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20061101143634.GB12619@khazad-dum.debian.net>
Date:	Wed, 1 Nov 2006 11:36:34 -0300
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Richard Hughes <hughsient@...il.com>,
	Shem Multinymous <multinymous@...il.com>,
	Xavier Bestel <xavier.bestel@...e.fr>,
	Jean Delvare <khali@...ux-fr.org>, davidz@...hat.com,
	Dan Williams <dcbw@...hat.com>, linux-kernel@...r.kernel.org,
	devel@...top.org, sfr@...b.auug.org.au, len.brown@...el.com,
	greg@...ah.com, benh@...nel.crashing.org,
	linux-thinkpad mailing list <linux-thinkpad@...ux-thinkpad.org>,
	Pavel Machek <pavel@...e.cz>
Subject: Re: [PATCH v2] Re: Battery class driver.

On Wed, 01 Nov 2006, David Woodhouse wrote:
> On Wed, 2006-11-01 at 13:26 +0000, Richard Hughes wrote:
> > With the battery class driver, how would that be conveyed? Would the
> > sysfs file be deleted in this case, or would the value of the sysfs
> > key be something like "<invalid>". 
> 
> I'd be inclined to make the read return -EINVAL.

-EIO for transient errors (e.g. access to the embedded controller/battery
charger/whatever fails at that instant), -EINVAL for "not supported"
(missing ACPI method, attribute not supported in the specific hardware)?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/