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From: greg@kroah.com (Greg KH)
To: kernelnewbies@lists.kernelnewbies.org
Subject: understanding of sysfs.
Date: Tue, 23 May 2017 08:34:55 +0200	[thread overview]
Message-ID: <20170523063455.GA18346@kroah.com> (raw)
In-Reply-To: <CAA2oCO=5qfpCCdnho7RiNEh2GZc26YXwkV604yOaLjoNvrczTA@mail.gmail.com>

On Tue, May 23, 2017 at 11:58:31AM +0530, Madhu K wrote:
> Hi All,
> 
> why there is no character device entry present in /sys/class? where as block
> and net device entries are present.

I see character devices there, but not the device nodes.  I don't see
block device nodes there either.

> Not only in /sys/class, for that matter why there is no character device
> entries present in /sys file system.

What do you exactly mean by "character device entries"?

> please help me to understand for what purpose char devices are kept away from /
> sys file system.

Have you read the driver model chapter in the Linux Device drivers book,
or the in-kernel sysfs documentation?

thanks,

greg k-h

  reply	other threads:[~2017-05-23  6:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-23  6:28 understanding of sysfs Madhu K
2017-05-23  6:34 ` Greg KH [this message]
2017-05-23  7:28   ` Madhu K
2017-05-23  9:23     ` Greg KH
2017-05-29  5:28       ` Madhu K
2017-05-29  5:43         ` Greg KH

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