pci_find_ht_capability (9) - Linux Manuals
pci_find_ht_capability: query a device's Hypertransport capabilities
pci_find_ht_capability - query a device's Hypertransport capabilities
int pci_find_ht_capability(struct pci_dev
* dev, int ht_cap);
- PCI device to query
- Hypertransport capability code
Tell if a device supports a given Hypertransport capability. Returns an address within the device's PCI configuration space or 0 in case the device does not support the request capability. The address points to the PCI capability, of type PCI_CAP_ID_HT, which has a Hypertransport capability matching ht_cap.