How can I set wlan bit rate on my tx2?

I want to set the wireless communication bit rate and mcs(modulation and coding scheme) on my tx2 board. I have tried the command “iw dev wlan0 set bitrates ht-mcs-2.4 10” and also similar commands about vht-mcs mode, but they all returned "command failed: Operation not supported (-95). How can I deal with the problem, or can I use other methods to do the same thing?


Operation not supported means the driver does not support. Then I can share little about it.
The driver is provided by Broadcom.

Thank you anyway. I will try to find a solution on Broadcom’s website.