Re: RESEND: [PATCH 3/3] Misc: Add HP WMI laptop extras driver

From: Andrew Morton
Date: Mon Jun 02 2008 - 19:31:28 EST


On Thu, 29 May 2008 09:23:56 +0100
Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote:

> This driver adds support for reading and configuring certain information
> on modern HP laptops with WMI BIOS interfaces. It supports enabling and
> disabling the ambient light sensor, querying attached displays and hard
> drive temperature, sending events on docking and querying the state of
> the dock and toggling the state of the wifi, bluetooth and wwan hardware
> via rfkill. It also makes the little "(i)" button work on machines that
> send that via WMI rather than via the keyboard controller.

I should upgrade everyone to checkpatch-0.19...

WARNING: consider using strict_strtoul in preference to simple_strtoul
#300: FILE: drivers/misc/hp-wmi.c:244:
+ u32 tmp = simple_strtoul(buf, NULL, 10);

The reason for this is that simple_strtoul(() will treat "42foo" as
valid input (ie: 42). Whereas strict_strtoul() will report an error,
which is neater of us.


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