diff options
Diffstat (limited to 'hw/xfree86/os-support/bus/linuxPci.c')
| -rw-r--r-- | hw/xfree86/os-support/bus/linuxPci.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/hw/xfree86/os-support/bus/linuxPci.c b/hw/xfree86/os-support/bus/linuxPci.c index 4846ee0ed..6e33c2550 100644 --- a/hw/xfree86/os-support/bus/linuxPci.c +++ b/hw/xfree86/os-support/bus/linuxPci.c @@ -104,6 +104,7 @@ linuxPciOpenFile(PCITAG tag) static int lbus,ldev,lfunc,fd = -1; int bus, dev, func; char file[32]; + struct stat ignored; bus = PCI_BUS_FROM_TAG(tag); dev = PCI_DEV_FROM_TAG(tag); @@ -111,12 +112,21 @@ linuxPciOpenFile(PCITAG tag) if (fd == -1 || bus != lbus || dev != ldev || func != lfunc) { if (fd != -1) close(fd); - if (bus < 256) - sprintf(file, "/proc/bus/pci/%02x/%02x.%1x", - bus, dev, func); - else - sprintf(file, "/proc/bus/pci/%04x/%02x.%1x", - bus, dev, func); + if (bus < 256) { + if (stat("/proc/bus/pci/00", &ignored) < 0) + sprintf(file, "/proc/bus/pci/0000:%02x/%02x.%1x", + bus, dev, func); + else + sprintf(file, "/proc/bus/pci/%02x/%02x.%1x", + bus, dev, func); + } else { + if (stat("/proc/bus/pci/00", &ignored) < 0) + sprintf(file, "/proc/bus/pci/0000:%04x/%02x.%1x", + bus, dev, func); + else + sprintf(file, "/proc/bus/pci/%04x/%02x.%1x", + bus, dev, func); + } fd = open(file,O_RDWR); lbus = bus; ldev = dev; |