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Message-ID: <20070425004946.GA63747@dspnet.fr.eu.org>
Date: Wed, 25 Apr 2007 02:49:46 +0200
From: Olivier Galibert <galibert@...ox.com>
To: Kristen Carlson Accardi <kristen.c.accardi@...el.com>
Cc: Alan Cox <alan@...rguk.ukuu.org.uk>, jeff@...zik.org,
linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
linux-ide@...r.kernel.org, htejun@...il.com
Subject: Re: [patch 1/7] libata: check for AN support
On Tue, Apr 24, 2007 at 01:53:27PM -0700, Kristen Carlson Accardi wrote:
> Check to see if an ATAPI device supports Asynchronous Notification.
> If so, enable it.
>
> changes from last version:
> * fix typo in ata_id_has_AN and make word 76 test more clear
> * If we fail to set the AN feature, just print a warning and continue
>
> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@...el.com>
>
> @@ -299,6 +305,8 @@ struct ata_taskfile {
> #define ata_id_queue_depth(id) (((id)[75] & 0x1f) + 1)
> #define ata_id_removeable(id) ((id)[0] & (1 << 7))
> #define ata_id_has_dword_io(id) ((id)[50] & (1 << 0))
> +#define ata_id_has_AN(id) \
> + (((id[76] != 0x0000) && (id[76] != 0xffff)) && ((id)[78] & (1 << 5)))
(id)[76] I guess ? Sorry for being a pain :/
OG.
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