Hi Shiv, On Tue, Dec 2, 2014 at 12:13 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: > [+cc Pratyush, Yinghai, Alex, Rajat] > > On Wed, Nov 26, 2014 at 7:57 AM, shiv prakash Agarwal > <chhotu.shiv@xxxxxxxxx> wrote: >> Hi All, >> >> Is anybody aware of any pcie card which gets detected by root port i.e >> link is up only when any device is connected to card? For example: >> PCIE USB3 card link is up only when a usb3 device is connected to it. >> >> Is it possible at least? Or card link will always be up whether any >> device is connected to it or not? Yes it is technically possible. It all depends on the logic of the card, and when does it decide to bring up the PCIe link. In your case apparently the card decides to bring up the PCIe link only when the USB device is detected. Thanks, Rajat -- 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
