Hello, I am new on this forum and new with linux.
I have Atheros 9285 and when i type airodump-ng wlan0 got message:

ioctl (SIOCSIWMODE) failed: Device or resource busy...

it worked during the last two days bust suddenly stopped, i don't know why?
I downloaded new compat-wireless-3.6.8-1.tar.bz2 but i don't know how to install it.
I tried to fallow this instructions but it didn't work.

Building and installing

cd /path/to/compat-wireless-2.6.32-rc5
./scripts/driver-select <driver-name>
sudo make install

Can anyone tell me step by step,word by word what should i type in terminal, please? Is is only one command in one row? Instead of driver name i tried compat-wireless-3.6.8-1. and many combinations but didn't work. What is the driver name. I have never installed anything in linux.