PCIe recovery mechanism

Greg KH greg at kroah.com
Fri Jan 9 00:18:20 EST 2015

On Fri, Jan 09, 2015 at 10:19:15AM +0530, Avinash Patil wrote:
> Hello,
> I was wondering if there is any way to recover from FW crash in case
> of WLAN PCie cards- say we power off card and power on. This would
> enable hotplug to detect it again and driver's probe routine would do
> redownload of FW and device is alive again.

You can't power-down a pci card unless you have special hardware that
controls the power, like a pci hotplug controller.  Those are not very

good luck,

greg k-h

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