Date: Fri, 12 Apr 2013 13:20:45 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: lev@FreeBSD.org Cc: John-Mark Gurney <jmg@funkthat.com>, freebsd-current@freebsd.org, Adrian Chadd <adrian@freebsd.org> Subject: Re: Intel D2500CC motherboard and strange RS232/UART behavior Message-ID: <5176.1365772845@critter.freebsd.dk> In-Reply-To: <98147894.20130412171822@serebryakov.spb.ru> References: <229402991.20130407172016@serebryakov.spb.ru> <201304101016.57894.jhb@freebsd.org> <20130411070139.GR76354@funkthat.com> <201304111050.37055.jhb@freebsd.org> <1449.1365716268@critter.freebsd.dk> <98147894.20130412171822@serebryakov.spb.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <98147894.20130412171822@serebryakov.spb.ru>, Lev Serebryakov writes : > I mean, there is no good way to distinguish between this (hardware) > implementation and "true" 4 single UART chips, when it is identify > itself as "generic 16550 UART", 4 times, at 4 I/O addresses. That is a kernel configuration issue entirely separate from the question about the hardware being built to allow and support interrupt sharing in the first place. Many old ISA cards also were not recognizable and required hint'ing, for the exact same reason. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5176.1365772845>