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From: Peter Stoddard on 17 Jan 2006 01:20
I have purchased a Mitsumi USB (external) floppy drive, and, having attached
it to my computer, I am trying to find where it is located in /dev. I would
like to use the udev system, and the command udevinfo, but it seems I have to
specify the location of the floppy drive in /dev first, and I don't know how
to do that.

The computer sees the device:

paris:/dev# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: ST3120813AS Rev: 2AAA
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: ST3120813AS Rev: 2AAA
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: MITSUMI Model: USB FDD 061M Rev: 2.00
Type: Direct-Access ANSI SCSI revision: 02

I have looked in all the obvious places, like /dev/fd:

*****************commands**********************

paris:/usr/lib/dpkg/methods/floppy# cd /dev/fd
paris:/dev/fd# ls
0 1 2 255
paris:/dev/fd# ls -l
total 4
lrwx------ 1 root root 64 Jan 16 11:44 0 -> /dev/pts/3
lrwx------ 1 root root 64 Jan 16 21:36 1 -> /dev/pts/3
lrwx------ 1 root root 64 Jan 16 21:36 2 -> /dev/pts/3
lrwx------ 1 root root 64 Jan 16 21:36 255 -> /dev/pts/3
paris:/dev/fd# cd /dev/pts
paris:/dev/pts# ls -l
total 0
crw--w---- 1 peter tty 136, 0 Jan 16 11:43 0
crw------- 1 peter tty 136, 1 Jan 16 21:32 1
crw------- 1 peter tty 136, 2 Jan 16 21:06 2
crw------- 1 peter tty 136, 3 Jan 16 21:36 3
paris:/dev/pts# superformat /dev/pts/3
Not a floppy drive
paris:/dev/pts#

******************end commands*******************

Can't find it. So I can't use commands like

superformat /dev/???
udevinfo /dev/???

And I can't write a rule for udev to map the device to a convenient place. It
seems like I have to find it first! How can I do that? Do I really have to
just look around until I find it, or is there some systematic way to find it?

Pete


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From: Paul E Condon on 17 Jan 2006 04:30
On Mon, Jan 16, 2006 at 09:56:19PM -0800, Peter Stoddard wrote:
> I have purchased a Mitsumi USB (external) floppy drive, and, having attached
> it to my computer, I am trying to find where it is located in /dev. I would
> like to use the udev system, and the command udevinfo, but it seems I have to
> specify the location of the floppy drive in /dev first, and I don't know how
> to do that.
>
....
>
> Can't find it. So I can't use commands like
>
> superformat /dev/???
> udevinfo /dev/???
>
> And I can't write a rule for udev to map the device to a convenient place. It
> seems like I have to find it first! How can I do that? Do I really have to
> just look around until I find it, or is there some systematic way to find it?
>
> Pete

Look at
http://www.reactivated.net/writing_udev_rules.html

I found if very helpful.

--
Paul E Condon
pecondon(a)mesanetworks.net


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From: Peter Stoddard on 17 Jan 2006 11:20
On Tuesday 17 January 2006 01:28 am, Paul E Condon wrote:

Many thanks Paul. "Tips for finding the appropriate places in SYSFS" is all
the way at the bottom of http://www.reactivated.net/writing_udev_rules.html.

> On Mon, Jan 16, 2006 at 09:56:19PM -0800, Peter Stoddard wrote:
> > I have purchased a Mitsumi USB (external) floppy drive, and, having
> > attached it to my computer, I am trying to find where it is located in
> > /dev. I would like to use the udev system, and the command udevinfo, but
> > it seems I have to specify the location of the floppy drive in /dev
> > first, and I don't know how to do that.
>
> ...
>
> > Can't find it. So I can't use commands like
> >
> > superformat /dev/???
> > udevinfo /dev/???
> >
> > And I can't write a rule for udev to map the device to a convenient
> > place. It seems like I have to find it first! How can I do that? Do I
> > really have to just look around until I find it, or is there some
> > systematic way to find it?
> >
> > Pete
>
> Look at
> http://www.reactivated.net/writing_udev_rules.html
>
> I found if very helpful.
>
> --
> Paul E Condon
> pecondon(a)mesanetworks.net


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