On Fri, 2006-10-13 at 16:26 +0100, Alan Cox wrote: > Ar Gwe, 2006-10-13 am 10:29 -0400, ysgrifennodd Alan Stern: > > > I'd like to propose that we have the pci config sysfs interface return > > > -EIO when it's blocked (e.g. active BIST or D3cold). This accurately > > > reflects the state of the device to userspace, reduces complexity, and > > > could potentially save some memory per PCI device instance. > > > > Could you resubmit your old patches and include a corresponding fix for > > this access problem? > > And then you can fix the applications it breaks, like the X server which > does actually want to know where all the devices are located in PCI > space. > .. but which could equally well mmap the resource from sysfs ;) also the thing this patch does is ONLY when the device is effectively off the bus return -EIO. One can argue that -EAGAIN is nicer since it's only a temporary condition though....
