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