Man page 9 : pci_find_next_ht_capability

pci_find_next_ht_capability - query a deviceAqs Hypertransport capabilities

int pci_find_next_ht_capability(struct pci_dev *  dev , int  pos , int  ht_cap );

dev
    PCI device to query

pos
    Position from which to continue searching

ht_cap
    Hypertransport capability code

To be used in conjunction with pci_find_ht_capability to search for all capabilities matching ht_cap. pos should always be a value returned from pci_find_ht_capability.

NB. To be 100% safe against broken PCI devices, the caller should take steps to avoid an infinite loop.