Date: Sun, 28 Apr 2013 19:17:19 -0400 From: Igor Mozolevsky <igor@hybrid-lab.co.uk> To: Kevin Oberman <rkoberman@gmail.com> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: [UART] GPS 18-5Hz LVC and COM1 silence, OK on Linux though... Message-ID: <CADWvR2hxFwjmiioiibgTnhqg1ruDpnbuvwvgfq3QRZbvtfMN1Q@mail.gmail.com> In-Reply-To: <CAN6yY1s6hi52fBw84qVL5vu%2BxQUYKkK0UBSt3mQzOA1rHn-DPw@mail.gmail.com> References: <CADWvR2gUqifxF4562%2BTdBea9h%2BSEk-=7fUk8%2B18B-31Y0rh=wA@mail.gmail.com> <CADWvR2jQKoKpB9N4EXZ8PQLbddiwhmedE7v2wrS202hPEPjM5w@mail.gmail.com> <CAN6yY1s6hi52fBw84qVL5vu%2BxQUYKkK0UBSt3mQzOA1rHn-DPw@mail.gmail.com>
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On 28 April 2013 19:04, Kevin Oberman <rkoberman@gmail.com> wrote: > Even though you have only a single physical port, most systems have at least > a dual serial UART controller, though only one mat have a DB-9 connector > attached. Can you look at /var/run/dmesg.boot and confirm that only one UART > is is found? E.g.: > > uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 > uart1: <16550 or compatible> port 0x2f8-0x2ff irq 3 on acpi0 > (Note that this system has only a single DB-9 connector for uart0. I suspect > that there is a header for uart1 on the board, but I've never had a need to > check. It is the only one---I've disabled COM2 in BIOS, and according to the manual the external connector is COM1 (mobo is JNF99FL-525). Just tried re-enabling COM2 in BIOS, but that made no difference---both cuau0 and cuau1 remain silent... I'm beginning to think that it might be an `unintended feature' that crept into the UART code... Cheers, -- Igor M.
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