Date: Wed, 21 May 1997 18:31:37 +0200 From: Poul-Henning Kamp <phk@dk.tfs.com> To: Bruce Evans <bde@zeta.org.au> Cc: jmg@hydrogen.nike.efn.org.dk.tfs.com, brett@lariat.org, HARDWARE@freebsd.org, rberndt@nething.com, WELCHDW@wofford.edu Subject: Re: isa bus and boca multiport boards Message-ID: <2380.864232297@critter> In-Reply-To: Your message of "Wed, 21 May 1997 23:44:29 %2B1000." <199705211344.XAA26555@godzilla.zeta.org.au>
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In message <199705211344.XAA26555@godzilla.zeta.org.au>, Bruce Evans writes: >>so should I commit my changes that allow the sio to set 16550's to a >>trigger level of 8? and possibly make it more generic than it already >>is and allow people to define the resulting fifo level of the uart? > >I think it should default to "medium" (FIXO_RX_MEDH) if NSIO > 4 >and there should be ioctls to change both the receiver trigger >level and transmitter fifo size (NetBSD users recently reported >problems with external devices not being able to handle 16 bytes >of buffering in the transmitter, because CTS flow control doesn't >work for bytes that have been put in the tx fifo). The ioctls >should be supported by comcontrol(8). Indeed. -- Poul-Henning Kamp | phk@FreeBSD.ORG FreeBSD Core-team. http://www.freebsd.org/~phk | phk@login.dknet.dk Private mailbox. whois: [PHK] | phk@tfs.com TRW Financial Systems, Inc. Power and ignorance is a disgusting cocktail.
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