Date: Thu, 02 Dec 1999 12:11:51 -0700 From: Warner Losh <imp@village.org> To: "Matthew N. Dodd" <winter@jurai.net> Cc: Nick Hibma <hibma@skylink.it>, Christopher Masto <chris@netmonger.net>, Mike Smith <msmith@FreeBSD.ORG>, FreeBSD CURRENT Mailing List <current@FreeBSD.ORG> Subject: Re: PCCARD eject freeze (was Re: your mail) Message-ID: <199912021911.MAA03854@harmony.village.org> In-Reply-To: Your message of "Thu, 02 Dec 1999 12:38:57 EST." <Pine.BSF.4.20.9912021236410.10542-100000@sasami.jurai.net> References: <Pine.BSF.4.20.9912021236410.10542-100000@sasami.jurai.net>
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In message <Pine.BSF.4.20.9912021236410.10542-100000@sasami.jurai.net> "Matthew N. Dodd" writes: : 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.) I had the same thought, but w/o a signal or other out of band error communication, I'm not sure how to implement this. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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