Changes to the wlan driver for SIOCSIWFREQ, SIOCSIWSENS, etc.

[Amit Choudhary]

1. Scan and join an AP on a particular channel/frequency given by user.

There's already a 'p2req_join' that takes a channel argument; why did
you need to create a new request type and handlers for it?

I did this a some time ago. When I tested it, it was not working. I
decided to leave it alone and implement new. But I should have fixed
it. Does it work now?

2. Scan and join an AP having the link quality >= link quality given
by the user.

You should implement SIOCGIWSENS too.

Yes, I should have done it.

Incidentally, it might be wiser to move the scanning/processing logic
into userspace instead of the WEXT handler.

You mean the user space tools? But what if there is a new tool?
Everyone gets it if it is done in WEXT handler.

Regards,
Amit