From 4fd10eb90b479748a6b5268701d8383b8579981f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Mon, 20 Dec 2021 22:56:33 +0100 Subject: [PATCH] libpci: generic: Implement SUBSYS also for PCI_HEADER_TYPE_BRIDGE Subsystem ids for PCI Bridges are stored in extended capability PCI_CAP_ID_SSVID. --- lib/generic.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/lib/generic.c b/lib/generic.c index 1c1f8a3..d178a44 100644 --- a/lib/generic.c +++ b/lib/generic.c @@ -86,6 +86,7 @@ void pci_generic_fill_info(struct pci_dev *d, unsigned int flags) { struct pci_access *a = d->access; + struct pci_cap *cap; if (want_fill(d, flags, PCI_FILL_IDENT)) { @@ -110,6 +111,14 @@ pci_generic_fill_info(struct pci_dev *d, unsigned int flags) d->subsys_vendor_id = pci_read_word(d, PCI_SUBSYSTEM_VENDOR_ID); d->subsys_id = pci_read_word(d, PCI_SUBSYSTEM_ID); break; + case PCI_HEADER_TYPE_BRIDGE: + cap = pci_find_cap(d, PCI_CAP_ID_SSVID, PCI_CAP_NORMAL); + if (cap) + { + d->subsys_vendor_id = pci_read_word(d, cap->addr + PCI_SSVID_VENDOR); + d->subsys_id = pci_read_word(d, cap->addr + PCI_SSVID_DEVICE); + } + break; case PCI_HEADER_TYPE_CARDBUS: d->subsys_vendor_id = pci_read_word(d, PCI_CB_SUBSYSTEM_VENDOR_ID); d->subsys_id = pci_read_word(d, PCI_CB_SUBSYSTEM_ID); -- 2.39.2