Date: Sun, 27 Jul 1997 18:52:56 -0600 (MDT) From: Nate Williams <nate@mt.sri.com> To: Poul-Henning Kamp <phk@dk.tfs.com> Cc: "Jordan K. Hubbard" <jkh@time.cdrom.com>, hosokawa@jp.freebsd.org, current@freebsd.org Subject: Re: pccard and -current; a long way to go. :-( Message-ID: <199707280052.SAA02793@rocky.mt.sri.com> In-Reply-To: <6019.869903071@critter.dk.tfs.com> References: <20225.869879961@time.cdrom.com> <6019.869903071@critter.dk.tfs.com>
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> right back then, I can confidently say that to get our "removable
> device" support into a decent shape will take some work.
>
> The Nomads work are pretty focused on pccards, but in the same framework
> we should look at CardBus, docking stations, hot-plug PCI and goddamnit:
> PlugAndPray since this is the mechanism that is supposed to make support
> for all these things managable.
>
> As usual, if you start to fiddle this stuff, you hit your head on the
> usual suspects:
>
> 1. Improved support for loadable devices.
> 2. Real mode BIOS calls.
> 3. A Registry.
> 4. (optional:) pageable kernel modules.
You forgot:
5. Device drivers that actually 'give up' resources when not in
use, such as interrupts, ports, etc... You can't currently
'unload' an IRQ right now safely.
Nate
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