From owner-freebsd-current Thu Dec 2 9:40:14 1999 Delivered-To: freebsd-current@freebsd.org Received: from sasami.jurai.net (sasami.jurai.net [63.67.141.99]) by hub.freebsd.org (Postfix) with ESMTP id 3CE0414BFC; Thu, 2 Dec 1999 09:40:11 -0800 (PST) (envelope-from winter@jurai.net) Received: from localhost (winter@localhost) by sasami.jurai.net (8.8.8/8.8.7) with ESMTP id MAA20197; Thu, 2 Dec 1999 12:38:57 -0500 (EST) Date: Thu, 2 Dec 1999 12:38:57 -0500 (EST) From: "Matthew N. Dodd" To: Nick Hibma Cc: Christopher Masto , Warner Losh , Mike Smith , FreeBSD CURRENT Mailing List Subject: Re: PCCARD eject freeze (was Re: your mail) In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 2 Dec 1999, Nick Hibma wrote: > PCMCIA has the problem that the hardware register you are talking to can > disappear on the spot, between 2 outb()s. Can't we do something about this using bus_space? This would give us a fair bit of overhead for PCMCIA devices as well as require us to more tightly couple newbus and bus_space (we'd probably want to 'cache' a function pointer to the method to avoid method lookup overhead.) -- | Matthew N. Dodd | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD | | winter@jurai.net | 2 x '84 Volvo 245DL | ix86,sparc,pmax | | http://www.jurai.net/~winter | This Space For Rent | ISO8802.5 4ever | To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message