How to setup Android to notify WCN1312 to enter standby/deep sleep mode

In Android, after system enter sleep or screen off, the Wifi GUI may send 'Driver Stop' command to WCN1312 driver after timer expired.

The timeout setting is hardcoded in WifiService.java:



private static final long DEFAULT_IDLE_MILLIS = 15 * 60 * 1000; /* 15 minutes */



default is 15 minutes, you can shorten the value and let WCN1312 to enter standby/deep sleep earlier.



When WCN1312 driver receive 'Driver Stop' command, it goes to standby or deep sleep mode according to setting in qcom_cfg.ini, see below



gEnableDriverStop = 0 // Ignore Driver Stop command

gEnableDriverStop = 1 // Map Driver Stop command to Standby (Default Setting)

gEnableDriverStop = 2 // Map Driver Stop command to deep Sleep.