ORBIT-USER: questions about atheros card

[Xiangpeng Jing]

Hi all,

  I started to run some of my old code using atheros cards but there
are some problems. Could anyone give me an update? Sorry if I asked
repeated questions. I am using image 1.0.9.

(1) When I tried to set channel on atheros cards with master mode, it
always give me error:
Error for wireless request "Set Mode" (8B06) :
    SET failed on device ath0 ; Invalid argument.

  How to set a pair of master/managed nodes on a particular channel,
as they have better association than ad-hoc mode?

(2) How is the ad-hoc mode status for atheros card now? I managed to
set up a couple of atheros nodes using ad-hoc mode, and finally their
essid, channel, cell id are all same. But some nodes still can not
communicate with others, e.g., node18-18 can not communicate with
node10-11, but was able to communicate with other nodes.

(3) Maybe Kishore can help me with this question: how long is the
latency when I dynamically set up a channel for a pair of atheros
nodes before they are able to communicate? I used system calls
(iwconfig) in my program (I know it's a bad method) to change runtime
channels but atheros nodes can not communicate in this way (before it
worked great for intel cards). Is there a faster way to change atheros
card channels runtime, e.g., some ioctls for the old aironet driver?


  Thank you for any comments!

Regards,
Xiangpeng