Reattach/redetect allways connected umass device - is it possible ?

[M. Warner Losh]

In message: <200503291707.j2TH7gTo052830 at khavrinen.lcs.mit.edu>
            Garrett Wollman <wollman at khavrinen.lcs.mit.edu> writes:
: <<On Tue, 29 Mar 2005 08:44:30 -0700 (MST), Warner Losh <imp at bsdimp.com> said:
: 
: > No they don't.  They umass device (the thing that the CF card plugs
: > into) does.  However, there's no asynchonous event that happens when
: > the CF (or whatever) card is inserted or removed. 
: 
: With newer memory devices, the card *is* the umass device.  Certainly
: that's the case with Sony Memory Stick.  The "reader" is nothing more
: than a hub.  (CF is unusual in that regard because it's really a
: slimmed-down PC-CARD device.)

But the 'hub' doesn't report when the memory device comes and goes.
All the hubs I've tested recently have da devices for all the memory
card(s) they can read and you have to do a camcontrol rescan after
you've inserted the memory device to read.

Warner