Finding Memory Address of a Parallel Port on Linux

Question

I'm trying to find the base (memory) address of a parallel port I have connected to my laptop via a PCI express card. Running lspci -v shows that my computer recognizes the parallel port and gives the I/O ports (1000 and 1008) but not the memory address (other entries have both ports and memory locations…this card is the only entry without a memory address). Also, when I look in /proc/ioports I get the same ports given in lspci. However, when I try to use either of those addresses in the program I'm running (EMC2 to control stepper motors), it does not find a parallel port at that address.

What would be really great is if there were an analogue to the Windows Device Manager -> Ports -> Resources. Is there any way to do this in Ubuntu? Is there a standard memory location for PCIe devices?

Edit: The output from lspci -v

04:00.0 Parallel controller: Oxford Semiconductor Ltd Device c110 (prog-if 02)
Subsystem: Oxford Semiconductor Ltd Device c110
Flags: bus master, fast devsel, latency 0, IRQ 18
I/O ports at 1000 [size=8]
I/O ports at 1008 [size=4]
Capabilities: [40] Power Management version 3
Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
Capabilities: [70] Express Legacy Endpoint, MSI 00
Capabilities: [100] Device Serial Number 10-01-00-11-11-e0-30-00
Capabilities: [110] Power Budgeting <?>
Kernel driver in use: parport_pc
Kernel modules: parport_pc

And for reference, another entry that shows the memory location:

0c:03.0 FireWire (IEEE 1394): Agere Systems FW322/323 (rev 61) (prog-if 10)
Subsystem: Agere Systems FW322/323
Flags: bus master, fast Back2Back, medium devsel, latency 248, IRQ 19
Memory at 8c000000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Kernel driver in use: ohci1394
Kernel modules: firewire-ohci, ohci1394

Answer 1

Try cat /proc/ioports | grep parport to filter the output of ioports.