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commands: lspci: go down into subordinate busses 

This way we also list devices that are behind
bridges.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Lucas Stach 2014-10-04 19:40:15 +02:00 committed by Sascha Hauer
parent 490d4fe417
commit 9b93e2aa59
1 changed files with 16 additions and 9 deletions
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25
commands/lspci.c
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@ -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;