From: Greg KH <greg@kroah.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: [Libusb-devel] udev craze: need /dev/bus/usb rationale
Date: Fri, 27 Jan 2006 02:25:15 +0000 [thread overview]
Message-ID: <20060127022515.GA8495@kroah.com> (raw)
In-Reply-To: <20060126094517.GA4063@bode.aurel32.net>
On Thu, Jan 26, 2006 at 06:08:11PM -0800, Johannes Erdfelt wrote:
>
> Coming in late to this thread and I see that the node has been changed
> from hexadecimal to decimal.
It should have always been in decimal, as that is what usbfs does.
> I want to understand the reason for these device nodes since they seem
> to duplicate the nodes found in /proc/bus/usb. Is this just part of the
> long term plans to remove usbdevfs?
They duplicate those nodes identically. But now we can use udev and pam
and other tools to properly set the permissions and acls on the nodes.
Much easier than doing it through usbfs mount permissions, which only
work for all usbfs devices.
If you look at the suse kernel, it disables the creation of those files
in usbfs completly, relying on these device nodes instead.
Hope this helps explain things.
greg k-h
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next prev parent reply other threads:[~2006-01-27 2:25 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-26 9:45 [Libusb-devel] udev craze: need /dev/bus/usb rationale Aurelien Jarno
2006-01-26 10:16 ` Linus Walleij
2006-01-27 2:08 ` Johannes Erdfelt
2006-01-27 2:17 ` Kay Sievers
2006-01-27 2:25 ` Greg KH [this message]
2006-01-27 2:26 ` Johannes Erdfelt
2006-01-27 3:01 ` Kay Sievers
2006-01-27 3:17 ` Greg KH
2006-01-27 3:38 ` Charles Lepple
2006-01-27 3:51 ` Kay Sievers
2006-01-27 3:53 ` Kay Sievers
2006-01-27 4:01 ` Andrey Borzenkov
2006-01-27 4:05 ` Andrey Borzenkov
2006-01-27 4:11 ` Kay Sievers
2006-01-27 4:20 ` Greg KH
2006-01-27 4:21 ` Greg KH
2006-01-27 4:23 ` Greg KH
2006-01-27 7:50 ` Linus Walleij
2006-01-27 11:56 ` Olivier Blin
2006-01-27 17:04 ` David Zeuthen
2006-01-27 17:15 ` Olivier Blin
2006-01-27 17:28 ` Darren Salt
2006-01-27 17:33 ` Bill Nottingham
2006-01-27 19:29 ` Johannes Erdfelt
2006-01-27 19:39 ` Linus Walleij
2006-01-27 19:44 ` Johannes Erdfelt
2006-01-27 20:45 ` Greg KH
2006-01-28 0:12 ` Greg KH
2006-02-06 23:29 ` Johannes Erdfelt
2006-02-06 23:53 ` Greg KH
2006-02-07 0:00 ` Johannes Erdfelt
2006-02-07 0:23 ` Greg KH
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