Date: Thu, 24 Dec 1998 06:17:58 -0800 (PST) From: Bruce Evans <bde@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: cvs commit: src/sys/i386/isa cy.c Message-ID: <199812241417.GAA27145@freefall.freebsd.org>
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bde 1998/12/24 06:17:58 PST
Modified files:
sys/i386/isa cy.c
Log:
Flush the fifos at the correct place in cyopen(). Various things
in cyopen() were done in a different order than in sioopen(), partly
to (ab)use a side effect of comparam() and partly because I didn't
understand what the reset was doing (it flushes the fifos). This
turned out to be more than a cosmetic problem. Flushing the fifos
quite late is good for discarding input that arrived while the line
state was being initialized, and in the cy driver it also seems to
reduce a problem with input that arrived long ago during the previous
close (the UART loses sync too easily and for too long).
Revision Changes Path
1.82 +17 -31 src/sys/i386/isa/cy.c
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