pcimodules and lspci not working alternative solution

pcimodules no longer works it produces nothing probably because the format of /sys/bus/pci is different.

lspci -k doesn't work on older lspci versions.

pciutils can be compiled but it won't work if you have an old system and compile on a newer glibc.

iteriate through /sys/bus/pci/devices/*/modalias

cat /sys/bus/pci/devices/*/modalias
pci:v00008086d00001237sv00000000sd00000000bc06sc00i00
pci:v00008086d00007000sv00000000sd00000000bc06sc01i00
pci:v00008086d00007111sv00000000sd00000000bc01sc01i8A
pci:v000080EEd0000BEEFsv00000000sd00000000bc03sc00i00
pci:v00008086d0000100Esv00008086sd0000001Ebc02sc00i00
pci:v000080EEd0000CAFEsv00000000sd00000000bc08sc80i00
pci:v00008086d00002415sv00008086sd00000000bc04sc01i00
pci:v0000106Bd0000003Fsv00000000sd00000000bc0Csc03i10
pci:v00008086d00007113sv00000000sd00000000bc06sc80i00




compare it to /lib/modules/4.4.98/modules.alias
pci:v00008086d00001237sv00000000sd00000000bc06sc00i00
the part we care about is:
8086d00001237 (note I now truncate more of the end so try again removing the 7 or even the 73 at the end to be more inclusive or you will have a lower success rate).


cat /lib/modules/4.4.98/modules.alias|grep 8086d0000123
alias pci:v00008086d00001234sv*sd*bc*sc*i* pata_mpiix
alias pci:v00008086d00001230sv*sd*bc*sc*i* pata_oldpiix
alias pci:v00008086d00001234sv*sd*bc*sc*i* piix
alias pci:v00008086d00001230sv*sd*bc*sc*i* piix

So bash to the rescue!

iteriate through /sys/bus/pci/devices/*/modalias

compare it to /lib/modules/4.4.98/modules.alias

 bash script that I use in my init

#use this code to do the same thing as pcimodules
for device in `ls -1 /sys/bus/pci/devices/`; do
   device=`cat /sys/bus/pci/devices/$device/modalias`
    #specifying 9:11 or 9:14 with 9:11 being less restrictive and presenting more options
    #9:14 drills down and is more strict giving you less chance of getting the wrong driver
   alias=${device:9:14}
   kernversion=`uname -r`
   module=`cat /lib/modules/$kernversion/modules.alias|grep $alias|awk '{print $3}'`
   if [ ! -z "$module" ]; then
     for mod in $module; do
     echo "module for $device $alias =$module"
     modprobe $module
     done
     else
     echo "No module found for $device $alias"
   fi
done

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