This file is indexed.

/lib/firmware/cis/src/COMpad4.cis is in linux-firmware 1.79.18.

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#
# Replacement CIS for Advantech COMpad-32/85B-4
#
dev_info
  NULL 0ns, 512b
vers_1 4.1, "ADVANTECH", "COMpad-32/85B-4"
funcid serial_port [post]
config base 0x0100 mask 0x0001 last_index 0x02
cftable_entry 0x01 [default]
  [mwait]
  io 0x0240-0x025f [lines=10] [8bit] [range]
  irq mask 0x9eb8 [level]
cftable_entry 0x02
  io 0x0340-0x035f [lines=10] [8bit] [range]