From: Matthew Garrett <matthew.garrett-05XSO3Yj/JvQT0dZR+AlfA@public.gmane.org>
To: "prarit-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
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<mstowe-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
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<linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH RFC] i2c algo, Add i2c-algo-i801 driver [v1]
Date: Wed, 9 Apr 2014 16:36:32 +0000 [thread overview]
Message-ID: <1397061392.5276.11.camel@x230> (raw)
In-Reply-To: <1397060563-30431-1-git-send-email-prarit-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Wed, 2014-04-09 at 12:22 -0400, Prarit Bhargava wrote:
> RFC and a work in progress ... I need to go through and do a bunch of error
> condition checking, more testing, etc. I'm just throwing this out there to see
> if anyone has any major concerns about doing something like this.
This isn't really a good approach. These aren't standardised ACPI
methods, so you have no guarantee that they exist. The fact that a
method with one of these names exists is no guarantee that it has the
same behaviour as the ones on your board. There's no guarantee that
you're not racing against the firmware.
These systems simply don't safely support OS-level i2c access.
--
Matthew Garrett <matthew.garrett@nebula.com>
next prev parent reply other threads:[~2014-04-09 16:36 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-09 16:22 [PATCH RFC] i2c algo, Add i2c-algo-i801 driver [v1] Prarit Bhargava
[not found] ` <1397060563-30431-1-git-send-email-prarit-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-04-09 16:36 ` Matthew Garrett [this message]
2014-04-09 17:02 ` Prarit Bhargava
[not found] ` <53457D0D.7020805-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-04-09 17:09 ` Matthew Garrett
2014-04-09 17:34 ` Prarit Bhargava
[not found] ` <5345849F.6070909-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-04-09 17:37 ` Matthew Garrett
2014-04-09 17:55 ` Prarit Bhargava
[not found] ` <53458992.4060003-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-04-09 17:59 ` Matthew Garrett
2014-04-09 18:02 ` Prarit Bhargava
[not found] ` <53458B2A.30003-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-04-09 18:27 ` Matthew Garrett
2014-04-09 19:22 ` Jean Delvare
2014-04-09 19:24 ` Matthew Garrett
2014-04-09 19:01 ` Jean Delvare
2014-04-09 19:05 ` Matthew Garrett
2014-04-10 19:15 ` Prarit Bhargava
2014-04-10 20:26 ` Matthew Garrett
2014-04-11 17:47 ` Prarit Bhargava
[not found] ` <53482AC2.2060605-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-04-11 18:55 ` Matthew Garrett
2014-04-09 18:56 ` Jean Delvare
2014-04-09 18:58 ` Matthew Garrett
2014-04-09 20:25 ` Jean Delvare
2014-04-09 16:37 ` Jean Delvare
2014-04-09 16:57 ` Prarit Bhargava
[not found] ` <53457C00.1030400-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-04-09 20:27 ` Jean Delvare
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