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From: "Gregory T. Norris" <haphazard@socket.net>
To: linux-kernel <linux-kernel@vger.kernel.org>,
	linux-usb-users@lists.sourceforge.net
Subject: usbserial/keyspan module load race [was: 2.4.5 keyspan driver]
Date: Sun, 1 Jul 2001 15:49:10 -0500	[thread overview]
Message-ID: <20010701154910.A15335@glitch.snoozer.net> (raw)
In-Reply-To: <20010630003323.A908@glitch.snoozer.net> <20010630133752.A850@glitch.snoozer.net>
In-Reply-To: <20010630133752.A850@glitch.snoozer.net>

Ok, I've figured out how to reproduce the problem.

Initially, usbcore and usb-uhci are the only USB drivers loaded.  If I
load usbserial and keyspan seperately ("modprobe usbserial ; sleep 5 ;
modprobe keyspan") everything works correctly.  The problem occurs when
I let modprobe pull in usbserial behind the scenes as a dependency. The
keyspan driver (usually) doesn't detect the device, and /proc/modules
forever lists it as "initializing".  The module won't unload at this
point, so the driver's unusable until the next reboot.

Unfortunately I have no idea how/where to fix this.  Anyone want to
take a stab at it?

On Sat, Jun 30, 2001 at 01:37:52PM -0500, Gregory T. Norris wrote:
> It seems to be working now, although I'm not really sure what fixed
> it... my kernel configuration is essentially unchanged.  I'm suspicious
> that the adapter might have a bad connection, or something similar.
> 
> Cheers!
> 
> On Sat, Jun 30, 2001 at 12:33:23AM -0500, Gregory T. Norris wrote:
> > I'm trying to use a Keyspan USA-19 to enable access to a Palm m500 on a
> > serial cradle.  Whenever I try to modprobe the keyspan module I get the
> > message "Warning: /lib/modules/2.4.5/kernel/drivers/usb/serial/usbserial.o
> > symbol for parameter vendor not found"... the module loads anyway, but
> > doesn't seem to detect the device.
> > 
> > As far as I can see, everything seems to be setup correctly (.config
> > attached).  Pointers and suggestions would be greatly appreciated.
> > Thanx!

  reply	other threads:[~2001-07-01 20:50 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-30  5:33 2.4.5 keyspan driver Gregory T. Norris
2001-06-30 18:37 ` Gregory T. Norris
2001-07-01 20:49   ` Gregory T. Norris [this message]
2001-07-02  2:51     ` usbserial/keyspan module load race [was: 2.4.5 keyspan driver] Greg KH
2001-07-02 22:26       ` Gregory T. Norris
     [not found]     ` <01070200025204.05063@idun>
2001-07-02 22:22       ` Gregory T. Norris
2001-07-02 22:43         ` Greg KH
2001-07-02 23:33           ` Gregory T. Norris
     [not found]     ` <01070123350102.05063@idun>
2001-07-02 22:23       ` Gregory T. Norris
2001-07-03  0:38     ` Gregory T. Norris
2001-07-03 17:38 ` 2.4.5 keyspan driver Greg KH
2001-07-03 22:19   ` Gregory T. Norris
2001-07-03 22:49     ` Gregory T. Norris
2001-07-04  0:16       ` Gregory T. Norris
2001-07-04  7:32         ` Greg KH
2001-07-04 17:04           ` Gregory T. Norris
2001-07-04 21:24             ` 2.4.6 " Gregory T. Norris

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