iwlist wlan0 scan
wlan0 Interface doesn't support scanning.
dmesg | grep iwlwifi
[ 3538.868881] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 3538.869026] iwlwifi 0000:03:00.0: irq 41 for MSI/MSI-X
[ 3538.869789] iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm
[ 3538.870838] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 3538.870841] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[ 3538.870843] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[ 3538.870844] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_P2P enabled
[ 3538.870846] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Wireless-N 2200 BGN, REV=0x104
[ 3538.870946] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 3654.758146] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 3654.765727] iwlwifi 0000:03:00.0: Radio type=0x2-0x0-0x0
[ 3655.004415] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[ 3655.011996] iwlwifi 0000:03:00.0: Radio type=0x2-0x0-0x0