From: Greg KH <greg@kroah.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: udev bug? (I don't think so)
Date: Sat, 15 Jul 2006 02:48:28 +0000 [thread overview]
Message-ID: <20060715024828.GA10912@kroah.com> (raw)
In-Reply-To: <e98qb4$gt$1@sea.gmane.org>
On Fri, Jul 14, 2006 at 02:12:35PM -0500, Ian Pilcher wrote:
> There's a sporadic discussion over on the pilot-link mailing lists about
> writing udev rules for Palm Treos (and similar multi-port devices).
>
> When one of these devices is plugged in, the visor driver creates two
> USB serial devices; a udev rule which matches the SYSFS{idVendor} and
> SYSFS{idProduct} will match both serial devices, and /dev/pilot will end
> up linked to whichever USB serial port is processed *last*. The last
> serial port processed is not necessarily the device with the higher
> kernel number.
>
> Several people on the pilot-link list have stated that this is a udev
> bug, but I don't agree. AFAIK, udev provides no assurance as to the
> order in which events are processed -- regardless of the order in which
> they are generated.
>
> Am I correct?
Yes you are. See the archives of this list for how difficult it is to
write a generic rule for the visor/clie/palm devices that will always
work properly.
thanks,
greg k-h
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next prev parent reply other threads:[~2006-07-15 2:48 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-14 19:12 udev bug? (I don't think so) Ian Pilcher
2006-07-15 2:48 ` Greg KH [this message]
2006-07-17 13:42 ` Scott James Remnant
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