Date: Sun, 11 Jan 1998 20:46:49 -0500 (EST) From: "John S. Dyson" <dyson@FreeBSD.ORG> To: jak@cetlink.net (John Kelly) Cc: hackers@FreeBSD.ORG Subject: Re: 16650 Support(?) Message-ID: <199801120146.UAA00911@dyson.iquest.net> In-Reply-To: <34c38080.8877417@mail.cetlink.net> from John Kelly at "Jan 12, 98 02:37:53 am"
next in thread | previous in thread | raw e-mail | index | archive | help
John Kelly said: > On Sun, 11 Jan 1998 20:12:12 -0500 (EST), "John S. Dyson" > <toor@dyson.iquest.net> wrote: > > >The 650 enabled code uses the entire 32 byte buffer > > Presumably you mean for transmit data only? > > The bit setting for a receive trigger level of 14 in a 550 gives a > receive trigger level of 28 in a 650. Either way, SIO should merely > drain receive data until the FIFO is empty, right? > It is being used correctly. Of course, you still might use the entire buffer, whatever the trigger level is set to. It depends on interrupt latencies, etc. -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199801120146.UAA00911>