[ltp] T30 serial ports

[Uwe Walter]

On So, 2005-02-27 at 11:12 +0100, Pino Giaquinto wrote:
> 1) why 'UART: undefined' ?
> /dev/ttyS0, UART: undefined, Port: 0x03f8, IRQ: 4
> /dev/ttyS1, UART: undefined, Port: 0x02f8, IRQ: 3

Sorry, don't know. With setserial I get:

/dev/ttyS0, UART: 16550A, Port: 0x03f8, IRQ: 4
/dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3


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

(As others alread wrote) depends on your BIOS setup, but usually yes.
You configure your irda setup with it (so it uses irattach to
use /dev/ttyS1 to provide e.g. /dev/ircomm0. The latter can then be used
as a irda serial connection.


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

No. The S55 can "talk" via AT commands directly over the serial. You can
use /dev/ttyS0 as virtual modem for your ppp setup. (Or link /dev/modem
to /dev/ttyS0 and use /dev/modem).


Greetings, UW(e)