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List:       linux-usb-users
Subject:    Re: [Linux-usb-users] why is usb device recognized?
From:       Jason Keltz <jas () cs ! yorku ! ca>
Date:       2004-10-29 15:41:37
Message-ID: Pine.LNX.4.58.0410291139270.27377 () hop ! cs ! yorku ! ca
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Hi Stephen,

If you mean the field marked "bDeviceClass" in
/lib/modules/2.4.26/modules.usbmap, there are no entries for usb-storage
that are not all 0x0000 there.  If you mean somewhere else, let me know so
I can check.

Thanks..

Jason.


On Fri, 29 Oct 2004, Stephen J. Gowdy wrote:

> THere should be some class matches there too, not only specfic device
> matches.
>
> On Fri, 29 Oct 2004, Jason Keltz wrote:
>
> > Hi.
> >
> > I have what may seem like a strange question! I have a USB key -- a small
> > 128 MB SANdisk Cruzer mini. I insert the key into my machine, and the
> > device is recognized. At least I see:
> >
> > hub.c: new USB device 00:1d.7-5, assigned address 6
> > usb.c: USB device 6 (vend/prod 0x781/0x7103) is not claimed by any active
> > driver.
> > Initializing USB Mass Storage driver...
> > usb.c: registered new driver usb-storage
> > scsi0 : SCSI emulation for USB Mass Storage devices
> > Vendor: Generic Model: STORAGE DEVICE Rev: 0026
> > Type: Direct-Access ANSI SCSI revision: 02
> > Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
> > SCSI device sda: 256000 512-byte hdwr sectors (131 MB)
> > sda: Write Protect is off
> > sda: sda1
> > WARNING: USB Mass Storage data integrity not assured
> > USB Mass Storage device found at 6
> > USB Mass Storage support registered.
> >
> > ----
> >
> > What I don't understand is *why* the USB Mass Storage driver loads.
> >
> > The vendor id is: 0x781, the product id: 0x7103, the device id: 26
> >
> > I'm running a 2.4.26 kernel, and if I look in lib
> > modules/2.4.26/modules.usbmap, there are
> > four entries:
> > usb-storage 0x000f 0x0781 0x0001 0x0200 0x0200 (0x000.....)
> > usb-storage 0x000f 0x0781 0x0002 0x0009 0x0009 (0x000.....)
> > usb-storage 0x000f 0x0781 0x0100 0x0100 0x0100 (0x000.....)
> > usb-storage 0x000f 0x0781 0x0200 0x0000 0x9999 (0x000....)
> >
> > ... not one of them matches my product.
> >
> > usb.handmap or usb.usermap in /etc/hotplug do not contain entries for the
> > device.
> > Even usb.distmap which isn't used for the 2.4 series of kernels contains
> > the same lines as the ones that come with the module.
> >
> > Thanks in advance!
> >
> > Jason Keltz
> > jas@cs.yorku.ca
> >
> >
> > -------------------------------------------------------
> > This Newsletter Sponsored by: Macrovision
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> > _______________________________________________
> > Linux-usb-users@lists.sourceforge.net
> > To unsubscribe, use the last form field at:
> > https://lists.sourceforge.net/lists/listinfo/linux-usb-users
> >
>
> --
>  /------------------------------------+-------------------------\
> |Stephen J. Gowdy                     | SLAC, MailStop 34,       |
> |http://www.slac.stanford.edu/~gowdy/ | 2575 Sand Hill Road,     |
> |http://calendar.yahoo.com/gowdy      | Menlo Park CA 94025, USA |
> |EMail: gowdy@slac.stanford.edu       | Tel: +1 650 926 3144     |
>  \------------------------------------+-------------------------/
>


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For reliable Linux application installations, use the industry's leading
setup authoring tool, InstallShield X. Learn more and evaluate 
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