debian:~# dmesg | tail
[25196.246691] firmware: requesting iwlwifi-3945-1.ucode
[25196.253286] iwl3945: iwlwifi-3945-1.ucode firmware file req failed: Reason -2
[25196.253286] iwl3945: Could not read microcode: -2
[25196.253286] ACPI: PCI interrupt for device 0000:0c:00.0 disabled
[25318.883275] ACPI: PCI Interrupt 0000:0c:00.0[A] -> GSI 17 (level, low) -> IRQ 17
[25318.883437] PM: Writing back config space on device 0000:0c:00.0 at offset 1 (was 100102, writing 100106)
[25318.883713] firmware: requesting iwlwifi-3945-1.ucode
[25318.890454] iwl3945: iwlwifi-3945-1.ucode firmware file req failed: Reason -2
[25318.890459] iwl3945: Could not read microcode: -2
[25318.890612] ACPI: PCI interrupt for device 0000:0c:00.0 disabled