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From: "Jason Dravet" <dravet@hotmail.com>
To: linux-kernel@vger.kernel.org
Subject: wrong number of serial port detected
Date: Wed, 07 Dec 2005 09:44:29 -0600	[thread overview]
Message-ID: <BAY103-F1629FE16D5F4DBB7B16524DF430@phx.gbl> (raw)

Hello,

I have a question about the way serial ports are detected.  Since I started 
using udev last year I noticed 32 ttySxx nodes in my /dev directory.  I 
checked dmesg and the serial port driver was detecting 32 ports.  Here is 
the line from dmesg:
Serial: 8250/16550 driver $Revision: 1.90 $ 32 ports, IRQ sharing enabled
In fact I don't have 32 ports.  I have two serial ports on the motherboard, 
both of which are disabled in the BIOS.  I opened a bug in RedHat's bugzilla 
system and it was promptly closed saying this was unfixable.  I was told 
that the kernel loaded the maximum number of ports supported by the serial 
port driver.  I asked why and I have not received a response.  So I ask this 
mailing list Can the kernel detect the proper number of serial ports or not?

Thanks,
Jason



             reply	other threads:[~2005-12-07 15:44 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-07 15:44 Jason Dravet [this message]
2005-12-07 15:50 ` Russell King
2005-12-07 19:59   ` Jason Dravet
2005-12-07 21:15     ` Russell King
2005-12-07 21:28       ` Xavier Bestel
2005-12-07 21:31         ` Russell King
2005-12-07 21:38           ` Russell King
2005-12-07 23:03             ` Dave Jones
2005-12-07 23:46               ` Russell King
2005-12-08  0:50                 ` Dave Jones
2005-12-08  3:09                   ` Dave Jones
2006-01-07 16:46                     ` Russell King
2006-01-07 21:05                       ` Dave Jones
2006-01-08  1:23                         ` Jason Dravet
2006-01-08  9:08                           ` Russell King
2005-12-08  3:02 Jason Dravet
2005-12-08 10:54 ` Russell King
2005-12-09 14:37   ` Jason Dravet
2005-12-09 17:27     ` Russell King
2005-12-09 19:54     ` Bjorn Helgaas
2005-12-10  1:46       ` Jason Dravet
2005-12-10 10:35       ` Russell King
2005-12-10 14:24         ` Jason Dravet
2005-12-10 15:46           ` Russell King
2005-12-10 17:56             ` Jason Dravet

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