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faq: update serial FAQ to include uart info

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Also use better source of information as the kernel buffer may not have
the reference anymore.
This commit is contained in:
Eitan Adler 2018-03-17 19:18:10 +00:00
parent 982f301470
commit d25ba9848b
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=51493
1 changed files with 1 additions and 1 deletions
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en_US.ISO8859-1/books/faq/book.xml
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@ -6316,7 +6316,7 @@ ATDT1234567</programlisting>
or run this command after the system is up and
running:</para>
<screen>&prompt.user; <userinput>dmesg | grep -E "^sio[0-9]"</userinput>
<screen>&prompt.user; <userinput>grep -E "^(sio|uart)[0-9] &lt; /var/run/dmesg.boot"</userinput>
sio0: &lt;16550A-compatible COM port&gt; port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio1: &lt;16550A-compatible COM port&gt; port 0x2f8-0x2ff irq 3 on acpi0