The ConnectCore MP15 is manufactured with a United States of America regulatory domain in accordance with Federal Communications Commission (FCC) regulations. By default, 802.11d protocol and "Additional regulatory domains" support is disabled.

Host product manufacturers using the ConnectCore MP15 on their own designs, and customers using the ConnectCore MP15 Development Kit outside of the United States can either use the default US regulatory domain when allowed by their own country regulations, or set a different regulatory domain region.

Set regulatory domain

If you plan to use that module in a different region, you need to override the wireless and Bluetooth binaries to be loaded using kernel command line parameters. You can define them in U-Boot environment variable extra_bootargs.

For the wireless driver:

=> setenv extra_bootargs brcmfmac.regdmn=World
=> saveenv

The brcmfmac.regdmn parameter can be:

  • US, for USA (default)

  • World, for worldwide

For the Bluetooth driver:

=> setenv extra_bootargs btbcm.regdmn=JRL
=> saveenv

The btbcm.regdmn parameter can be:

  • FCC.CE, for USA, Europe, and the rest of the world (default)

  • JRL, for Japan

When using the US regulatory domain in Japan, and according to current Japanese regulations, channels from 149 to 165, both inclusive, should not be used.

Configuration modes

Digi Embedded Yocto provides the Wi-Fi interface functionality to use different network types:

  • Client infrastructure mode: Digi Embedded Yocto reads the certification region and configures the wireless interface for the specified region. When in worldwide mode, the wireless interface is initially configured in a highly restrictive world regulatory domain. It then listens for access point beacons with country identification elements. Once a country is identified, the wireless interface queries the crda (central regulatory domain agent) daemon, which scans a regulatory domain database to return the country’s regulatory limitations.

  • Access point mode: Digi Embedded Yocto uses the hostapd user space daemon to manage access point mode. Configure the default Digi Embedded Yocto hostapd configuration file /etc/hostapd.conf as follows to work in worldwide regulatory mode. For instance, to configure for Spain (country code ES):

    # IEEE 802.11d - Country Code
ieee80211d=1
country_code=ES
    Change the country code to match your regulatory domain according to ISO/IEC 3166-1.