PCI_WRITE_LEGACY_IO
Section: Hardware Interfaces (9)
Updated: February 2011
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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).
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