PCI Serial Port testing

[Karl Larsen]

         I am trying to get a pci-serial-port to work on Ubuntu 10.04 
computer. It looked like it was ready to work, but read a web page that 
said this device has to have the serial port set to 115200 baud to make 
it work. To do this I had to get the software "setserial" and I 
discovered it had to be root to actually work on /dev/ttyS*. It appears 
to have done this but I have no way to check even this. After doing this 
setting I get this from lspci -vv

03:07.0 Serial controller: Oxford Semiconductor Ltd EXSYS EX-41092 Dual 
16950 Serial adapter (prog-if 06)
     Subsystem: Siig Inc Device 2000
     Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
     Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
     Interrupt: pin A routed to IRQ 21
     Region 0: I/O ports at cf00 [size=32]
     Region 1: Memory at fdcff000 (32-bit, non-prefetchable) [size=4K]
     Region 2: I/O ports at ce00 [size=32]
     Region 3: Memory at fdcfe000 (32-bit, non-prefetchable) [size=4K]
     Capabilities: <access denied>
     Kernel driver in use: serial

         The Capabilities: <access denied> is a list of these which this 
device does not provide. Since the Kernel driver in use is "serial" it 
makes me think it should be working.

         My question is, how do I test this serial port? I am not sure 
which port is being used, /dev/ttyS0 - /dev/ttyS3. I want to send 
something from the computer side to the serial port but don't know how 
to do it.


73 Karl