Hi, everyone. I'm testing the power consumption of the WL1835MOD of BBBW. 
So I need to turn the WL1835MOD off and on to check the power consuming 
difference. I have tried several ways to turn it off but failed. The ways I 
tried:

   1. ifconfig wlan0 down. No power consuming difference is observed. The 
   WL led is still on after I tried the command. I guess the WiFi was not 
   really off.
   2. According to 
   
(http://processors.wiki.ti.com/index.php/WiLink8_WLAN_Demo:_Linux#Configuring_the_Target,
 
   "For low-power modes, the WL18xx chip can be held in a suspend/shutdown 
   mode where it will draw minimal current in order to preserve battery 
   life/minimize power draw. These commands can be run on any supported 
   platform, including, but not limited to, the AM335x, AM437x, AM57x, and 
   BeagleBone." After I followed the below instructions, almost every thing 
   on the BBBW was turned off. But I only need the WL1835MOD to turn off.
   - mount -t debugfs debugfs /tmp/
      - echo 1 > /tmp/pm_debug/enable_off_mode
      - mount -t debugfs debugfs /tmp/
   3. According to 
   (http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#U-Boot_Overlays), I 
   could disable WL1835MOD to boot by uncommenting 
   #disable_uboot_overlay_wireless=1, but the wifi and bluetooth still boot up 
   after I restarted the BBBW.

Does anyone has any idea how to turn off the WL1835MOD? Thank you.


 

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