Re: devfs + PCI serial card = no extra serial ports

[Bryan Whitehead <driver@jpl.nasa.gov>]

I just found this:
http://www.uwsg.iu.edu/hypermail/linux/kernel/0212.2/0845.html

Has this patch been accepted into the new kernel series? Or should I 
just toss this card (the NetMos PCI I/O card)?

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