9.99 listpci ¶

struct pci_info {
    uint8_t bus;
    uint8_t func;
    uint8_t slot;
    uint16_t device_id;
    uint16_t vendor_id;
    uint8_t rev_id;
    uint8_t subclass;
    uint8_t device_class;
    uint8_t prog_if;
} __attribute__((packed));

size_t listpci(struct pci_info *addr, size_t len);

This syscall writes a list of all detected PCI devices in the system alongside their identification information to the buffer contained at addr, which contains len items.

The numbers returned for device and vendor IDs can be translated to human readable strings by the use of a PCI database, like The PCI ID Repository, distributed and maintained kindly by Albert Pool and Martin Mares.

The number of detected PCI devices is returned in success, and -1 in failure, with the following errno:

• EFAULT: The array pointed by addr is outside accessible memory.