[ltp] T30 serial ports

[Peter Johanson]

On Sun, Feb 27, 2005 at 11:12:55AM +0100, Pino Giaquinto wrote:
> I have a ThinkPad T30 (Fedora Core 3)
> In system log I can see:
> 
> ...
> Serial: 8250/16550 driver $Revision: 1.90 $ 76 ports, IRQ sharing enabled
> ttyS0 at I/O 0x03f8 (irq = 4) is a NS16550A
> ttyS1 at I/O 0x02f8 (irq = 3) is a NS16550A
> ...
> 
> but using 'setserial /dev/ttyS0' and 'setserial /dev/ttyS1' I see:
> 
> /dev/ttyS0, UART: undefined, Port: 0x03f8, IRQ: 4
> /dev/ttyS1, UART: undefined, Port: 0x02f8, IRQ: 3

> 
> My questions are:
> 
> 1) why 'UART: undefined' ?

I'm not sure *why*, but i know that this is the same output i get on my
T30 using 2.6.10, and both my regular serial port (i use it to get
consoles on my sparc boxen no problem) and my IRDA port (used to
transfer images/files to/from my Ericsson T610 phone) work fine as ttyS0
and ttyS1 respectively.

> 2) is /dev/ttyS1 the IRDA port ?

At least on my T30, it is. I believe if you change the settings in the
BIOS you can get them to swap, if you really want them to.

> 3) Need I a driver for my Siemens S55 to connect to internet (GPRS) using 
> serial cable or IRDA ? 
> 

can't help you on this one. sorry.

hth,
-pete

-- 
Peter Johanson
<latexer@gentoo.org>