device without i\o ports

[synoptyck]

hi all,
I've a question pertaining of using device which's not have i\o ports. So, I've registered that device via pci_conf_read PCI_COMMAND_MEM_ENABLE, but I don't know how to usage device via address of memory into pci bus. Currently my driver twittering via i\o ports with device. Which's way I can know how to use that device via memory pci bus?

Code: Select all

       Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32 (250ns min, 63750ns max)
        Interrupt: pin A routed to IRQ 5
        Region 0: Memory at e4203000 (32-bit, prefetchable)

[tuxx-home.at]

I'm sorry, but that's beyond my knowledge. Maybe someone else is able to help you.