Message-ID: <3E692356.2070705@jpl.nasa.gov>
Date: Fri, 07 Mar 2003 14:55:18 -0800
From: Bryan Whitehead <driver@jpl.nasa.gov>
Organization: Jet Propulsion Laboratory
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To: linux-kernel@vger.kernel.org
Cc: linux-newbie@vger.kernel.org
Subject: Re: devfs + PCI serial card = no extra serial ports
References: <3E692281.10906@jpl.nasa.gov>
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BTW, this is with 2.4.19 (kernel shipped with distro).... I'm willing to 
test any patches / rebuild kernel to get this working.....


Bryan Whitehead wrote:
> It seems devfsd has an annoying "feature". I bought a PCI card to get a 
> couple (2) more serial ports. The kernel doesn't seem to set up the 
> serial ports at boot, so devfs never creates an entry. However, post 
> boot, since there is no entries, I cannot configure the serial ports 
> with setserial. So basically devfsd = no PCI based serial add on?
> 
> 03:05.0 Serial controller: NetMos Technology 222N-2 I/O Card (2S+1P) 
> (rev 01) (prog-if 02 [16550])
>     Subsystem: LSI Logic / Symbios Logic (formerly NCR): Unknown device 
> 0002
>     Flags: medium devsel, IRQ 17
>     I/O ports at ecf8 [size=8]
>     I/O ports at ece8 [size=8]
>     I/O ports at ecd8 [size=8]
>     I/O ports at ecc8 [size=8]
>     I/O ports at ecb8 [size=8]
>     I/O ports at eca0 [size=16]
> 
> 
> mknod ttyS2 c 4 66
> mknod ttyS3 c 4 67
> setserial ttyS2 port 0xecf8 UART 16550A irq 17 Baud_base 9600
> setserial ttyS3 port 0xece8 UART 16550A irq 17 Baud_base 9600
> 
> I hoped after "setting up" the serial ports with setserial some magic 
> would happen and they would apear in /dev/tts... but I was wrong.
> 
> gets me working serial ports... but it's not in /dev... :O
> 
> Am I just screwed?
> 
> If so, what would be a good add on PCI based solution for more serial 
> ports that WORKS with devfsd? (I don't want to disable devfs as this 
> opens up a different set of problems)
> 
> Thanks for any replay!
> 


-- 
Bryan Whitehead
SysAdmin - JPL - Interferometry Systems and Technology
Phone: 818 354 2903
driver@jpl.nasa.gov

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