From: Mark Lord <lkml@rtr.ca>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
Linux Kernel Development <linux-kernel@vger.kernel.org>,
linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: HDIO_DRIVE_CMD and hdparm
Date: Thu, 10 May 2007 09:13:54 -0400 [thread overview]
Message-ID: <46431A92.8010501@rtr.ca> (raw)
In-Reply-To: <20070510135153.5f6d62f8@the-village.bc.nu>
Alan Cox wrote:
>> - SCSI doesn't handle HDIO_DRIVE_CMD(null), and returns EINVAL
>> => fine for hdparm
>> - If a block device doesn't support the ioctl, blkdev_driver_ioctl() returns
>> ENOTTY
>> => hdparm error message
>
> Those are both correct
> -ENOTTY I don't know this ioctl
> -EINVAL I know this ioctl, usage wrong
Exactly.
I'll have hdparm-7.4 not complain on ENOTTY as well.
-ml
next prev parent reply other threads:[~2007-05-10 13:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-10 12:12 HDIO_DRIVE_CMD and hdparm Geert Uytterhoeven
2007-05-10 12:41 ` Christoph Hellwig
2007-05-10 12:51 ` Alan Cox
2007-05-10 13:13 ` Mark Lord [this message]
2007-05-10 13:20 ` Mark Lord
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