mirror of
https://github.com/torvalds/linux.git
synced 2024-12-04 18:13:04 +00:00
94e6108803
Vital Product Data (VPD) may be exposed by PCI devices in several ways. It is generally unsafe to read this information through the existing interfaces to user-land because of stateful interfaces. This adds: - abstract operations for VPD access (struct pci_vpd_ops) - VPD state information in struct pci_dev (struct pci_vpd) - an implementation of the VPD access method specified in PCI 2.2 (in access.c) - a 'vpd' binary file in sysfs directories for PCI devices with VPD operations defined It adds a probe for PCI 2.2 VPD in pci_scan_device() and release of VPD state in pci_release_dev(). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
12 lines
500 B
Plaintext
12 lines
500 B
Plaintext
What: /sys/bus/pci/devices/.../vpd
|
|
Date: February 2008
|
|
Contact: Ben Hutchings <bhutchings@solarflare.com>
|
|
Description:
|
|
A file named vpd in a device directory will be a
|
|
binary file containing the Vital Product Data for the
|
|
device. It should follow the VPD format defined in
|
|
PCI Specification 2.1 or 2.2, but users should consider
|
|
that some devices may have malformatted data. If the
|
|
underlying VPD has a writable section then the
|
|
corresponding section of this file will be writable.
|