Well like nobody answered my i'm replying myself.
how i wroted before i having problems with modem at sio3. the answer that i founded:
These are the four serial ports referred to as COM1 through COM4 in the MS-DOS/Windows world.
Note: If you have an internal modem on COM4 and a serial port at COM2, you will have to change the IRQ of the modem to 2 (for obscure technical reasons, IRQ2 = IRQ 9) in order to access it from FreeBSD. If you have a multiport serial card, check the manual page for sio(4) for more information on the proper values for these lines. Some video cards (notably those based on S3 chips) use IO addresses in the form of 0x*2e8, and since many cheap serial cards do not fully decode the 16-bit IO address space, they clash with these cards making the COM4 port practically unavailable.
Each serial port is required to have a unique IRQ (unless you are using one of the multiport cards where shared interrupts are supported), so the default IRQs for COM3 and COM4 cannot be used.
POP. Nem parece internet grátis.
Seja POP você também!
Acesse: http://www.pop.com.br/pop_discador.php e baixe o POPdiscador.
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-questions" in the body of the message