Re: Sony vaio, UMASS0, etc

[Andy Isaacson <adi@hexapodia.org>]

On Tue, Oct 01, 2002 at 03:32:06AM +0000, Dragos Ruiu wrote:
> Yep, it's the umass one. And I should read more carefully.
> Because now as I recall, the last time I snagged data off a 
> stick I had put the stick in at boot.

Interesting.  I also have a Vaio with a memory stick port, which shows
up as umass, but I don't have any media to test it with.

> Neither under OBSD nor Windows does inserting or removing the 
> memory stick produce a single peep over USB so whatever 
> notification the stick device gives of inserts and ejects it doesn't
> look like it goes over usb.  But windows somehow seems to know
> (whether by IRQ or system message queue or whatever) that a stick 
> has been inserted.

I'd guess there's some Sony magic having to do with the fact that the
memory stick port also has a LED indicating "there's a memory stick
installed".  Some non-USB channel that the Sony-installed drivers know
about, I'm sure.

Perhaps the Linux "Sony Programmable I/O" driver has something to do
with it?  See Documentation/sonypi.txt in a recent Linux tree.

> However the fact that umass does 
> not like my usb flash disk is another matter.  Just in case anyone 
> cares about this I've also have win32 sniffs and obsd diagnostics 
> from my flash disk. Email me if they are of any use to you.

FWIW, I'm using a SanDisk CompactFlash USB reader with no problems on
that Vaio.

-andy