From: "Américo Wang" <xiyou.wangcong@gmail.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Nikita V. Youshchenko" <yoush@cs.msu.su>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Extended error reporting to user space?
Date: Tue, 16 Feb 2010 21:17:22 +0800 [thread overview]
Message-ID: <20100216131722.GA4382@hack.private> (raw)
In-Reply-To: <b6fcc0a1002160423o1269996bw34c033015b1ab500@mail.gmail.com>
On Tue, Feb 16, 2010 at 02:23:55PM +0200, Alexey Dobriyan wrote:
>On Tue, Feb 16, 2010 at 2:20 PM, Nikita V. Youshchenko <yoush@cs.msu.su> wrote:
>> Unfortunately this -EINVAL is not really useful.
>
>There is no such thing.
>Driver can spit messages with printk() though.
Right, if errno is not enough, printk() is.
You could also use other interface to debug, but printk() is the
simplest.
Thanks.
next prev parent reply other threads:[~2010-02-16 13:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-16 12:20 Extended error reporting to user space? Nikita V. Youshchenko
2010-02-16 12:23 ` Alexey Dobriyan
2010-02-16 13:17 ` Américo Wang [this message]
2010-02-17 9:58 ` Andi Kleen
2010-02-17 10:16 ` Nikita V. Youshchenko
2010-02-17 10:35 ` Andi Kleen
2010-02-17 19:20 ` Dr. David Alan Gilbert
2010-02-17 20:23 ` Andi Kleen
2010-02-21 0:02 ` Dr. David Alan Gilbert
2010-02-17 10:43 ` Alan Cox
2010-02-17 11:57 ` Andi Kleen
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