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pci_read_legacy_io
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
pci_read_legacy_io - read byte(s) from legacy I/O port spaceSYNOPSIS
- ssize_t pci_read_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 to store results
off
- offset into legacy I/O port space
count
- number of bytes to read
DESCRIPTION
Reads 1, 2, or 4 bytes from legacy I/O port space using an arch specific callback routine (pci_legacy_read).
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