> 0 - direct access (read disk)

Where does flash memory fit?

(((I've seen people write software suitable for random-block flash access that chokes 
over random-track disk access until/unless you put a fetch-around track cache in the 
middle.)))

x4402 Pat LaVarre of iOmega   [EMAIL PROTECTED]   http://members.aol.com/ppaatt/

>>> Alan Cox <[EMAIL PROTECTED]> 05/05/00 07:00PM >>>
> I was reading it yesterday.  devfs has separate
> directories for cdrom, tape, disc, cd-rw (?),
> toaster, floppy, etc.  But the non-USB drivers are
> only for specific devices, so they know what
> media type they are talking to and can create
> devfs-compartments for them easily.

Yes. This isnt going to be right for all devices anyway.

> Where does a CD-RW device fit into this?
> And can usb-storage work in this devfs scenario?

Assuming the USB scsi subset stuff includes the conventional scsi inquiry
stuff then the return block from an inquiry has a type in bits 0-31 of
byte 0 of the return.

They dont totally define it but help a lot and I assume its how scsi devs
is hacked together

0 - direct access (read disk)
1 - sequential access (read tape)
2 - printer
3 - processor (crypto etc)
4 - worm
5 - cdrom
6 - scanner
7 - optical device (Magneto Opticals and stuff)
8 - medium changer (multi-cd etc)
9 - communications 
13 - enclosure


Alan


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