$ dmesg | grep iwl
[   15.619482] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[   15.619608] iwlwifi 0000:03:00.0: irq 45 for MSI/MSI-X
[   15.621531] iwlwifi 0000:03:00.0: Direct firmware load failed with error -2
[   15.621534] iwlwifi 0000:03:00.0: Falling back to user helper
[   15.668131] iwlwifi 0000:03:00.0: Direct firmware load failed with error -2
[   15.668135] iwlwifi 0000:03:00.0: Falling back to user helper
[   15.694067] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1 build 25532 op_mode iwldvm
[   15.755129] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[   15.755132] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[   15.755134] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[   15.755137] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6200 AGN, REV=0x74
[   15.755234] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[   15.776187] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[   17.783775] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[   17.790409] iwlwifi 0000:03:00.0: Radio type=0x1-0x3-0x1
[   18.017622] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[   18.024173] iwlwifi 0000:03:00.0: Radio type=0x1-0x3-0x1