linux-kernel - Re: [PATCH] pktcdvd: added sysfs interface + bio write queue handling fix

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Message-ID: <op.tfqc12x5iudtyh@master>
Date:	Mon, 11 Sep 2006 22:11:52 +0200
From:	"Thomas Maier" <balagi@...tmail.de>
To:	"Greg KH" <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org,
	"petero2@...ia.com" <petero2@...ia.com>
Subject: Re: [PATCH] pktcdvd: added sysfs interface + bio write queue handling fix

Hello,

> The file layout is now as follows:
>
> /sys/block/pktcdvd[0-7]/      # device dir created by gendisk
>                    packet/     # pktcdvd subdir
>                      <files>   # pktcdvd per device files
>                      mapped_to # symlink to mapped device in /sys/block
>
> /sys/class/pktcdvd/		# class dir for control files
>                   add          # add new device mapping, creates new pktcdvd device
>                   remove       # ...
>                   device_map
>                   packet_buffers
>
> /debugfs/pktcdvd[0-7]/		# per device debugfs dir entry
>                   info         # lot of human readable device infos, previous
>                                # found in /proc/driver/pktcdvd[0-7]
>
>

Also added class_device's below of /sys/class/pktcdvd , so that
the file layout is now:

/sys/class/pktcdvd/pktcdvd[0-7]/
                         dev
                         uevent


> Use /sys/class/pktcdvd/ and use struct device instead of struct
> class_device, so I don't have to convert the code later

Hmm, sorry. Don't know how to do this. The only thing i found
is the code in class.c, where struct class_device is used to create
these "dev" and "uevent" files...


Any comments?

-Thomas Maier
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