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

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

> From: "Miles Lane" <miles@megapathdsl.net>
> Sent: Sunday, February 04, 2001 10:02 AM
>
> Here's an overview of where we are now.

[ based on David Hinds' list ]

> > 2. There is no mechanism to request a card eject in the new framework.
> >    This is required for clean shutdown of SCSI and IDE adapters.
> 
> (Rusty Russell and other kernel developers are looking into 
> related improvements.  Also, discussion has started on 
> linux-hotplug-devel)

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.
And I think it might be good to avoid requiring each type of
hotplug bus to have its own "eject" tool.

I think what's meant is "disconnect the drivers and do electrical
shutdown".  USB needs corresponding functionality.  I did a patch
a while back, which I'll submit soonish; it turns out to be helpful
for a variety of user-mode tools.  It's an ioctl on the /proc/bus/usb
device files ... perhaps that approach should be incorporated into
the /proc/bus/pci device file support.

- Dave



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