Monitor Mode question

Dan Williams dcbw at redhat.com
Tue Jul 29 13:38:42 EDT 2008


On Sat, 2008-07-26 at 16:06 -0400, Clyde McPherson wrote:
> I am using a CF 8386 with the current version of the libertas drivers 
> and I am using the firmware that is downloaded and created by the 
> libertas fwcutter, which seems to be downloaded from the gumstix site. 
> Whenever I echo any hex values to the sysfs lbs_rtap file, the firmware 
> returns a result of 2 and the libertas driver reports an error, but the 
> rtap0 network device is created. When I try to use the rtap0 device via 
> wireshark, kismet, etc. , no packets are being sent over. I guess my 
> question is, since the firmware response is a 2, then monitor mode is 
> not possible? Should the rtap0 device even be created at that time?

No, it shouldn't.  Looks like CMD_802_11_MONITOR_MODE is a usb8388
firmware specific extension, and thus we shouldn't be exposing the rtap
functionality via MONITOR_MODE on non-usb8388 devices.

dan





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