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

From: Garrett Wollman (wollman_at_khavrinen.lcs.mit.edu)
Date: 03/29/05

  • Next message: Garrett Wollman: "Re: Reattach/redetect allways connected umass device - is it possible ?" 
    Date: Tue, 29 Mar 2005 12:07:42 -0500 (EST)
To: Warner Losh <imp@bsdimp.com>

    <<On Tue, 29 Mar 2005 08:44:30 -0700 (MST), Warner Losh <imp@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.)

    -GAWollman

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