Search for parallel port memory address in Linux

Question

I am trying to find the base (memory) address of the parallel port that I connected to my laptop through a PCI Express card. Running lspci -v shows that my computer recognizes the parallel port and provides I / O ports (1000 and 1008) but no memory address (other entries have both ports and memory locations ... this card is the only entry without a memory address ), In addition, when I look in /proc/ioports , I get the same ports as in lspci. However, when I try to use any of these addresses in the program that I run (EMC2 for controlling stepper motors), it does not find the parallel port at this address.

What would be great if there was an analogue of the Windows Device Manager → Ports → Resources. Is there a way to do this in Ubuntu? Is there a standard memory location for PCIe devices?

Edit: Exit 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 cat /proc/ioports | grep parport filter ioports output.

Answer 2

Quick answer: there is no memory space for the parallel port. Parallel ports have only distributed I / O ports. This is how the parallel port interfaces have worked for decades, and no one felt the need to create an incompatible memory display interface that needed special drivers.

Now I have to ask, why do you intend to find the port memory location? What do you want to do with this?