Forum Post: ACK timeout delay for the wl1271/wl1273

Is it possible to change the WiFi delay for an ACK timeout
on the wl1271/wl1273 ?

I see that iw provides an option to configure the
distance between the AP and the STA (so changing the
ACK delay) but when I run it with my wl1271 I get an error
saying that this operation is not supported

iw phy phy0 set distance 100
command failed: Operation not supported (-95)

iw phy phy0 set coverage 1  
command failed: Operation not supported (-95)

Is the ACK delay hard-coded in the wl12xx driver somewhere?
or is it hardcoded in the wl127x firmware and there is  no way to change it ??

thanks
Bernard