> > To emulate rfkill functionality, just write directly to the ec, for ex > > to turn on wwan and wifi: > > ./ec_access -w 0x3a -v 0x60 > > > Usecase? > > > Example: I have a wwan card, but I mostly use it for GPS. I can save > some power by turning it off without rebooting, while keeping wifi on with: I'd like to see some real figures on power saved between idle wwan and disabled wwan, I really doubt it's anything noticeable > The hardware button is not safe enough : register 0x3A hasthe H/W > Override bitto "enable to control wireless devices even if the global > WAN disable switch is ON". Disabling the USB ports through the RCBA > registers (nice idea!) would prevent such an override. > > Also, it would save more power on the wwan that the hardware button : > the wwan module is not fully desactivated since it replies to AT commands > > Several persons do not fully trust a wwan module. Physically removing it > is the solution suggested. Disabling the usb port would be a simpler > solution for those than do not want to physically open their laptop yet > do not trust the hardware button due to the override bit. > wwan module is powered unconditionally. So if you don't trust it - remove it. Also none of disables discussed here is irreversible if you're concerned about rogue software. > It seems to have several usecase. None of them looks valid
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