PCI_MMAP_LEGACY_IO(9)                  Hardware Interfaces                  PCI_MMAP_LEGACY_IO(9)



NAME
       pci_mmap_legacy_io - map legacy PCI IO into user memory space

SYNOPSIS
       int pci_mmap_legacy_io(struct file * filp, struct kobject * kobj,
                              struct bin_attribute * attr, struct vm_area_struct * vma);

ARGUMENTS
       filp
           open sysfs file

       kobj
           kobject corresponding to device to be mapped

       attr
           struct bin_attribute for this file

       vma
           struct vm_area_struct passed to mmap

DESCRIPTION
       Uses an arch specific callback, pci_mmap_legacy_io_page_range, to mmap legacy IO space
       (first meg of bus space) into application virtual memory space. Returns -ENOSYS if the
       operation isn't supported

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                     PCI_MMAP_LEGACY_IO(9)