Derald,
The DM37x T+W -32 SOMs does not require the use of the updated backports. However, the default configuration setting in the DM37Linux 2.4-4 BSP is PKG_LINUX_BACKPORTS [=y].
The updated backports provides the following:
1. Dual role where WiFi AP + Station can be used simultaneously
2. Both 2.4GHz and 5GHz bands are available when used as an Access Point.
The updated Wireless backports now allows an access point to use 5.0 and 5.8GHz bands.
Channels 36, 40, 48 are available in the 5GHz band and 149, 153, 157, 161 and 165 are available
in the 5.8GHz band.
3. Setting the regulatory domains using the CRDA.
Here are example commands for setting the regulatory domains.
Select regulatory domain for United States
DM-37x# iw reg set US
Select regulatory domain for Canada
DM-37x# iw reg set CA
Regards,
Brad