On Tue, 28 Dec 2010, Guraaf wrote: > I am looking for a solution where I don't have to reboot the PC so > often (tens of times during a day). Can't I connect the device and > then run some code to make the Linux kernel detect and enable the BAR > of our device? I was hoping to find some documentation on using the have you tried using the hotplug functions? You basically want to trigger a bus rescan. The hotplug functionality really describes what you need. echo 1 > /sys/bus/pci/rescan 060 What: /sys/bus/pci/rescan 061 Date: January 2009 062 Contact: Linux PCI developers <linux-pci@xxxxxxxxxxxxxxx> 063 Description: 064 Writing a non-zero value to this attribute will 065 force a rescan of all PCI buses in the system, and 066 re-discover previously removed devices. 067 Depends on CONFIG_HOTPLUG. > PCI Support Library and examples but haven't been able to. Any > pointers appreciated. Perhaps there are calls like > pci_enable_device() or pci_find_device() etc. that I can execute in my > code? I can't figure out though. I can write kernel modules as well > as user code to get this working, i.e., I don't have any restrictions > on whether I have root access or not. if you build libpci with the bus mapping mode enabled, you might be able to force lspci with -W option to rescan. if the rescan doesn't work you may want to fuss around with fakephp or faking a hotplug event. Jesse -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
