On Sun, Jan 04, 2009 at 01:12:52AM -0800, Adam Williamson wrote:
> Here's the problem:
>
> [r...@lenovo sys]# grep 8004 `find -name *modalias*`
> ./devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.0/modalias:usb:v0FCAp8004d0201dc00dsc00dp00icFFisc01ipFF
> ./devices/pci0000:00/0000:00:1d.7/usb5/5-2/5-2:1.1/modalias:usb:v0FCAp8004d0201dc00dsc00dp00ic08isc06ip50
>
> all Greek to you? Well, never find :). That shows that my 8330 is
> showing two modaliases when connected. The 'ic08isc06ip50' at the end of
> the second one identifies it as a USB mass-storage device. If you look
> at 'modinfo usb-storage', you'll see this line:
>
> alias: usb:v*p*d*dc*dsc*dp*ic08isc06ip50*
>
> which basically means "this module is going to get loaded for any device
> whose modalias ends with ic08isc06ip50* , no matter what the rest of the
> modalias is" (i.e. no matter what the USB ID is).
I believe this matches the lsusb -v output:
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
i.e. ic = InterfaceClass = 8
isc = InterfaceSubClass = 6
ip = InterfaceProtocol = 80 = 50 hex
> So, that's why usb-storage is getting loaded and I can't stop it.
Usb_storage is just doing its duty. :-) You can probably blacklist it,
but then it would stop working for other devices. :-/
> The deeper question is why's my 8330 showing itself as a USB storage
> device like this even when I disable it on Options / Media Card. But it
> makes me reasonably sure the problem is with the Blackberry and not in
> Barry or the kernel or anything.
The 8120 I have here does the same thing. This is probably hard coded
in the firmware. Even when I don't have a memory card in it, it shows
Mass Storage support.
- Chris
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