linux-kernel - Re: [RFC] char: Add MFGPT driver for the CS5535/CS5536

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20061122221731.356939cb@localhost.localdomain>
Date:	Wed, 22 Nov 2006 22:17:31 +0000
From:	Alan <alan@...rguk.ukuu.org.uk>
To:	"Jordan Crouse" <jordan.crouse@....com>
Cc:	linux-kernel@...r.kernel.org, info-linux@...mail.amd.com
Subject: Re: [RFC] char: Add MFGPT driver for the CS5535/CS5536

On Wed, 22 Nov 2006 13:57:36 -0700
"Jordan Crouse" <jordan.crouse@....com> wrote:

> The Geode CS5535 and CS5536 companion chips contain a block of timers
> known as the Multi Function General Purpose Timers.  The primary use
> for these timers is to control an output pin nominally connected to a
> LED or other visual indicator.  They also can be configured to reset the
> system, which is handy as a watchdog timer.  they _can_ be used to
> fire software interrupts on timeout too, but this is less useful since the
> timers are fairly low resolution and there are much better options available.
> 
> The attached driver provides a low-level interface to the block, and 
> allows for other kernel drivers to use the timers. 

Three comments

1.	Use inlines not defines when you can - it means we get type
checking
2.	There is an RTC timer interface - could you use that interface
for some of this so its compatible and consistent ?
3.	Ditto for a watchdog use - although that would be a separate
driver using the kernel hooks anyway.

Kernel side looks fairly sane
-
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/