Hello we are using FN-8112MET PCB module having RTL8188ETV chip on it. Device is running customized Linux version based on Linux 4.19 release. Driver module "r8188eu" is not modified, taken from vanilla sources as is. Wi-Fi connection is used occasionally, and rest of the time it is preferable to have minimal power consumption. Such situation is observed: 1) Linux kernel is started, driver module is not loaded 2) module "r8188eu" is loaded manually with parameters "rtw_power_mgnt=2 rtw_enusbss=1" 3) device starts consuming more current (+20mA) 3) after the module is unloaded, current consumption remains at the same level We still have to double-check this, but looks like driver module does not leave the device in the same state on module unload. Few questions: 1) Is "r8188eu" driver from the mainline kernel the best possible option available for this chip? 2) Where can I look for some documentation about kernel module parameters related to power management and their meanings? Source code is not very descriptive, and I was not able to google anything better, looks like this chip specifications are not available in public. 3) Is there some option to completely poweroff this chip using software and then bring it back when needed? Anton
