table of contents
| 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¶
| May 2024 | Kernel Hackers Manual 2.6. |