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PCI: revise VPD access interface

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Change PCI VPD API which was only used by sysfs to something usable
in drivers.
   * move iteration over multiple words to the low level
   * use conventional types for arguments
   * add exportable wrapper

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Stephen Hemminger
2008-12-18 09:17:16 -08:00
committed by Jesse Barnes
parent 1120f8b816
commit 287d19ce2e
4 changed files with 124 additions and 100 deletions
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6
drivers/pci/pci.h
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@@ -56,14 +56,14 @@ extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
struct pci_vpd_ops {
int (*read)(struct pci_dev *dev, int pos, int size, char *buf);
int (*write)(struct pci_dev *dev, int pos, int size, const char *buf);
ssize_t (*read)(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
ssize_t (*write)(struct pci_dev *dev, loff_t pos, size_t count, const void *buf);
void (*release)(struct pci_dev *dev);
};
struct pci_vpd {
unsigned int len;
struct pci_vpd_ops *ops;
const struct pci_vpd_ops *ops;
struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
};