[PATCH 07/15] commands: lspci: go down into subordinate busses
Lucas Stach
dev at lynxeye.de
Thu Sep 25 10:05:01 PDT 2014
This way we also list devices that are behind
bridges.
Signed-off-by: Lucas Stach <dev at lynxeye.de>
---
commands/lspci.c | 25 ++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
diff --git a/commands/lspci.c b/commands/lspci.c
index fdf0269..27edd5d 100644
--- a/commands/lspci.c
+++ b/commands/lspci.c
@@ -20,10 +20,24 @@
#include <complete.h>
#include <linux/pci.h>
+static void traverse_bus(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ printf("%02x:%02x.%1x %04x: %04x:%04x (rev %02x)\n",
+ dev->bus->number, PCI_SLOT(dev->devfn),
+ PCI_FUNC(dev->devfn), (dev->class >> 8) & 0xffff,
+ dev->vendor, dev->device, dev->revision);
+
+ if (dev->subordinate)
+ traverse_bus(dev->subordinate);
+ }
+}
+
static int do_lspci(int argc, char *argv[])
{
struct pci_bus *root_bus;
- struct pci_dev *dev;
if (list_empty(&pci_root_buses)) {
printf("No PCI bus detected\n");
@@ -31,14 +45,7 @@ static int do_lspci(int argc, char *argv[])
}
list_for_each_entry(root_bus, &pci_root_buses, node) {
- list_for_each_entry(dev, &root_bus->devices, bus_list) {
- printf("%02x: %04x: %04x:%04x (rev %02x)\n",
- dev->devfn,
- (dev->class >> 8) & 0xffff,
- dev->vendor,
- dev->device,
- dev->revision);
- }
+ traverse_bus(root_bus);
}
return 0;
--
1.9.3
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