Date: Wed, 21 May 1997 23:44:29 +1000 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, jmg@hydrogen.nike.efn.org Cc: brett@lariat.org, HARDWARE@freebsd.org, rberndt@nething.com, WELCHDW@wofford.edu Subject: Re: isa bus and boca multiport boards Message-ID: <199705211344.XAA26555@godzilla.zeta.org.au>
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>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). Bruce
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