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Tweeted twitter.com/StackRaspi/status/705474298769707008
Minor fixes
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edit approved Mar 3, 2016 at 16:23
Greenonline
edit approved Mar 3, 2016 at 16:23
Greenonline
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How to enable wifiWi-Fi channel 12 on Raspberry Pi 3?

I need my RpiRPi 3 to connect to a wifiWi-Fi network using channel 12, but I'm not able to get the built-in wifi adpaterWi-Fi adapter to use this channel.

How to enable wifi channel 12 on Raspberry Pi 3?

I need my Rpi 3 to connect to a wifi network using channel 12, but I'm not able to get the built-in wifi adpater to use this channel.

How to enable Wi-Fi channel 12 on Raspberry Pi 3?

I need my RPi 3 to connect to a Wi-Fi network using channel 12, but I'm not able to get the built-in Wi-Fi adapter to use this channel.

Added output from dmesg.
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perja
perja
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Update: This is what I get in dmesg:

[    5.506232] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code
[    5.756813] brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists
[    5.756854] brcmfmac: brcmf_add_if: ignore IF event
[    5.765557] cfg80211: Calling CRDA to update world regulatory domain
[    5.867878] lirc_rpi: auto-detected active high receiver on GPIO pin 18
[    5.875184] lirc_rpi lirc_rpi: lirc_dev: driver lirc_rpi registered at minor = 0
[    5.875222] lirc_rpi: driver registered!
[    5.885249] bcm2835-rng 3f104000.rng: hwrng registered
[    5.902514] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[    6.026071] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code
[    6.026108] cfg80211: World regulatory domain updated:
[    6.026124] cfg80211:  DFS Master region: unset
[    6.026141] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[    6.026173] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026197] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026211] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026246] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[    6.026277] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[    6.026307] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[    6.026332] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026345] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[    6.026421] cfg80211: Calling CRDA for country: NO
[    6.070591] cfg80211: Regulatory domain changed to country: NO
[    6.070607] cfg80211:  DFS Master region: ETSI
[    6.070613] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[    6.070621] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[    6.070628] cfg80211:   (5150000 KHz - 5250000 KHz @ 80000 KHz, 200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[    6.070635] cfg80211:   (5250000 KHz - 5350000 KHz @ 80000 KHz, 200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[    6.070643] cfg80211:   (5470000 KHz - 5795000 KHz @ 160000 KHz), (N/A, 2698 mBm), (0 s)
[    6.070650] cfg80211:   (5815000 KHz - 5850000 KHz @ 35000 KHz), (N/A, 3301 mBm), (0 s)
[    6.070656] cfg80211:   (17100000 KHz - 17300000 KHz @ 200000 KHz), (N/A, 2000 mBm), (N/A)
[    6.070662] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)

Update: This is what I get in dmesg:

[    5.506232] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code
[    5.756813] brcmfmac: brcmf_add_if: ERROR: netdev:wlan0 already exists
[    5.756854] brcmfmac: brcmf_add_if: ignore IF event
[    5.765557] cfg80211: Calling CRDA to update world regulatory domain
[    5.867878] lirc_rpi: auto-detected active high receiver on GPIO pin 18
[    5.875184] lirc_rpi lirc_rpi: lirc_dev: driver lirc_rpi registered at minor = 0
[    5.875222] lirc_rpi: driver registered!
[    5.885249] bcm2835-rng 3f104000.rng: hwrng registered
[    5.902514] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[    6.026071] brcmfmac: brcmf_cfg80211_reg_notifier: not a ISO3166 code
[    6.026108] cfg80211: World regulatory domain updated:
[    6.026124] cfg80211:  DFS Master region: unset
[    6.026141] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[    6.026173] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026197] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026211] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026246] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[    6.026277] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[    6.026307] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[    6.026332] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[    6.026345] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[    6.026421] cfg80211: Calling CRDA for country: NO
[    6.070591] cfg80211: Regulatory domain changed to country: NO
[    6.070607] cfg80211:  DFS Master region: ETSI
[    6.070613] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[    6.070621] cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[    6.070628] cfg80211:   (5150000 KHz - 5250000 KHz @ 80000 KHz, 200000 KHz AUTO), (N/A, 2301 mBm), (N/A)
[    6.070635] cfg80211:   (5250000 KHz - 5350000 KHz @ 80000 KHz, 200000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[    6.070643] cfg80211:   (5470000 KHz - 5795000 KHz @ 160000 KHz), (N/A, 2698 mBm), (0 s)
[    6.070650] cfg80211:   (5815000 KHz - 5850000 KHz @ 35000 KHz), (N/A, 3301 mBm), (0 s)
[    6.070656] cfg80211:   (17100000 KHz - 17300000 KHz @ 200000 KHz), (N/A, 2000 mBm), (N/A)
[    6.070662] cfg80211:   (57000000 KHz - 66000000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
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perja
perja
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How to enable wifi channel 12 on Raspberry Pi 3?

I need my Rpi 3 to connect to a wifi network using channel 12, but I'm not able to get the built-in wifi adpater to use this channel.

This is what I've done:

$ sudo apt-get install wireless-regdb iw crda
$ sudo iw reg set NO
$ sudo iwlist wlan0 channel
wlan0     11 channels in total; available frequencies :
      Channel 01 : 2.412 GHz
      Channel 02 : 2.417 GHz
      Channel 03 : 2.422 GHz
      Channel 04 : 2.427 GHz
      Channel 05 : 2.432 GHz
      Channel 06 : 2.437 GHz
      Channel 07 : 2.442 GHz
      Channel 08 : 2.447 GHz
      Channel 09 : 2.452 GHz
      Channel 10 : 2.457 GHz
      Channel 11 : 2.462 GHz

As you can see the list doesn't include channel 12 (or 13). Is there a way to enable channel 12 for the built-in adapter?