pci_mmap_legacy_io
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## 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

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