Name

pci_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).