April 9, 2015
6:21 a.m.
On Wed, 08 Apr 2015 22:18:46 -0700, A B said:
One of my pci device is not showing up in /proc/pci/bus/devices. I'm using 2.6.36 kernel. which part of code i can look to troubleshoot, i'm looking at drivers/pci/probe.c. Any pointers / tips will be helpful
Wow. If the device isn't even showing up at all in /sys/bus/pci/devices, my first question is "Convince me that your PCI device is in fact functional and plugged in all the way". If it can't even get its slot/function number and vendor/card codes right, it's most likely either mis-seated or dead. I can't remember the last time I saw this caused by a software problem - even devices that don't *have* a driver will at least show up as an unknown PCI device.