PCI_WRITE_LEGACY_IO(9) Hardware Interfaces PCI_WRITE_LEGACY_IO(9)NAMEpci_write_legacy_io - write byte(s) to legacy I/O port space
SYNOPSIS
ssize_t pci_write_legacy_io(struct file * filp, struct kobject * kobj,
struct bin_attribute * bin_attr,
char * buf, loff_t off, size_t count);
ARGUMENTS
filp
open sysfs file
kobj
kobject corresponding to file to read from
bin_attr
struct bin_attribute for this file
buf
buffer containing value to be written
off
offset into legacy I/O port space
count
number of bytes to write
DESCRIPTION
Writes 1, 2, or 4 bytes from legacy I/O port space using an arch
specific callback routine (pci_legacy_write).
COPYRIGHTKernel Hackers Manual 2.6. November 2013 PCI_WRITE_LEGACY_IO(9)