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The debian backports 4.8 standard kernel loads the module fjes on my thinkpad T460s.

How can I find out why this module is loaded, i.e. which hardware triggers loading this module?

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  • Kernel will detect new hardware and load this module on the boot. When kernel didnt enable this module.Kernel didnt load this module. Even kernel detected new hardware on the boot. Commented Jan 6, 2017 at 11:24
  • Actually you can run # lsmod to check all modules loaded. And you can check fjes module info with # modinfo fjes.ko.If I am not mistaken.Another users also post the question about fjes module.It called Fujitsu device. Commented Jan 6, 2017 at 11:35

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You can use lspci -v. You will need to grep (probably with -i to ignore case) for your module shown in lsmod. e.g. to find r8169: 

lspci -v |grep -i -A 4 -B 4 r8169

You can change the number of lines before and after (A, B) to your liking/needs.

I found another user had the same question. There is a script here to find out.

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  • No result, not with lspci -nk, too. Commented Jan 5, 2017 at 21:41
  • Check with lspci -v by itself. Question: is fjes showing up in lsmod? I think fjes is a Fujitsu Extended Network Device Driver. Did you check your ethernets/wifis/networks in the lspci output? Commented Jan 5, 2017 at 21:48
  • lspci only shows Intel devices and a Realtek one (SD card reader). Commented Jan 5, 2017 at 21:54
  • That's... pretty odd. Got on my debian machine, lspci shows everything. Are you doing this as root/elevated privileges? I will admit, I am not on a laptop, and do not have your kernel installed (I bet). I think the script on the link I posted could be modified to search all directories in /sys/class and print them. That may or may not help your cause. Commented Jan 5, 2017 at 22:16
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    There are more busses than just PCI, and other kernel subsystems that won't list modules in lspci. Try lsusb, lshw, lsmod for example. Commented Jan 7, 2017 at 8:43

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