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
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Date: February 2008
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Contact: Ben Hutchings <bhutchings@solarflare.com>
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Description:
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A file named vpd in a device directory will be a
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binary file containing the Vital Product Data for the
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device. It should follow the VPD format defined in
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PCI Specification 2.1 or 2.2, but users should consider
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that some devices may have malformatted data. If the
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underlying VPD has a writable section then the
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corresponding section of this file will be writable.
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