Re: Adding PCMCIA support to the kernel tree -- developers needed.

[David Brownell <david-b@pacbell.net>]

> From: "David Hinds" <dhinds@sonic.net>
> Sent: Monday, February 26, 2001 11:56 PM
>
> On Mon, Feb 26, 2001 at 09:47:49AM -0800, David Brownell wrote:
> 
> > Exactly what is meant by "eject" though?  "eject pcmcia-slot-1"
> > can't exactly eject the drive, as it would for a CD or ZIP disc.
> 
> Actually some PCMCIA sockets do have eject mechanisms.  Powerbooks for
> example.

Does "cardctl eject 1" physically eject on those platforms?


> > I think what's meant is "disconnect the drivers and do electrical
> > shutdown".
> 
> This was mostly what I had in mind.

Good.  Seems like for PCI, we'll need to pay attention to the user
feedback mechanisms, since this is important for the high availability
hotplugging mechanisms (cPCI, Compaq "Hotplug PCI") that use
indicator LEDs to help protect that mission-critical data, while we
recently learned that some folk really like beeps on PC-Card form
factor devices.

Without having looked at this, I'd like to think that the "quiesce
the driver and hardware" functionality should be one code path,
and the "give the right domain-specific feedback" paths might
need to be different ... though I'd hope not.  I think some of the
patches Compaq put up on their hotplug site related to this stuff.

- Dave



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