blacklist fails to prevent visor load?

[Martin Ewing]

This used to work:  I placed "visor" in /etc/hotplug/blacklist to
prevent the visor module from being loaded when I do an update from my
Palm Pilot (Treo 650) device.  I want the USB request passed through to
a WinXP VMware client which knows how to deal with Pilot devices better.

Now, I see that "visor" is being loaded in FC4 (2.6.15-1.1831_FC4)
despite being in the blacklist.  I have to remove it manually.  

/var/log/messages below - shows connection of Treo and then timeout as
no one responds.

Any ideas what is happening here?  How can I prevent Fedora from loading
'visor'? 

(Or better yet, a definitive expanation of how to get Treo communication
working under Fedora! That hasn't worked for me for a long time.) 

TIA.

Martin

Feb  9 10:44:19 localhost kernel: usbcore: deregistering driver visor
Feb  9 10:44:19 localhost kernel: drivers/usb/serial/usb-serial.c: USB
Serial deregistering driver Handspring Visor / Palm OS
Feb  9 10:44:19 localhost kernel: drivers/usb/serial/usb-serial.c: USB
Serial deregistering driver Sony Clie 3.5
Feb  9 10:44:19 localhost kernel: drivers/usb/serial/usb-serial.c: USB
Serial deregistering driver Sony Clie 5.0
Feb  9 10:44:38 localhost kernel: usb 4-2: new full speed USB device
using uhci_hcd and address 7
Feb  9 10:44:38 localhost kernel: drivers/usb/serial/usb-serial.c: USB
Serial support registered for Handspring Visor / Palm OS
Feb  9 10:44:38 localhost kernel: drivers/usb/serial/usb-serial.c: USB
Serial support registered for Sony Clie 3.5
Feb  9 10:44:38 localhost kernel: drivers/usb/serial/usb-serial.c: USB
Serial support registered for Sony Clie 5.0
Feb  9 10:44:38 localhost kernel: visor 4-2:1.0: Handspring Visor / Palm
OS converter detected
Feb  9 10:44:38 localhost kernel: usb 4-2: Handspring Visor / Palm OS
converter now attached to ttyUSB4
Feb  9 10:44:38 localhost kernel: usb 4-2: Handspring Visor / Palm OS
converter now attached to ttyUSB5
Feb  9 10:44:38 localhost kernel: usbcore: registered new driver visor
Feb  9 10:44:38 localhost kernel: drivers/usb/serial/visor.c: USB
HandSpring Visor / Palm OS driver
Feb  9 10:46:49 localhost kernel: usb 4-2: USB disconnect, address 7
Feb  9 10:46:49 localhost kernel: visor ttyUSB4: Handspring Visor / Palm
OS converter now disconnected from ttyUSB4
Feb  9 10:46:49 localhost kernel: visor ttyUSB5: Handspring Visor / Palm
OS converter now disconnected from ttyUSB5
Feb  9 10:46:49 localhost kernel: visor 4-2:1.0: device disconnected


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