Date: Wed, 23 Apr 1997 09:01:21 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: hackers@freebsd.org Subject: Re: concurrent calls to device drivers Message-ID: <19970423090121.MR12299@uriah.heep.sax.de> In-Reply-To: <199704230227.LAA18664@genesis.atrad.adelaide.edu.au>; from Michael Smith on Apr 23, 1997 11:57:14 %2B0930 References: <19970422214531.BX39690@uriah.heep.sax.de> <199704230227.LAA18664@genesis.atrad.adelaide.edu.au>
next in thread | previous in thread | raw e-mail | index | archive | help
As Michael Smith wrote: > > Unless the interrupt service can modify sc_busy, you don't need to > > protect it. > > I was thinking explicitly about the speaker driver when I wrote this; ... Ok, if you wanna make the speaker driver asynch, then you need it. > Do we have sample implementations of these primitives? Last I heard the > SMP kernel wasn't doing kernel reentrancy yet, so I guess it's not vital > yet... Don't ask me about SMP. :) -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19970423090121.MR12299>