hi all,
I am customizing a linux driver code of WLAN card as Access Point on Linux
kernel 2.6.12 to work with.
We know struct net_device has a member pointer to a method called
hard_start_xmit that initiates the transmission through the device. Data
should contain sk_buff structure.
For that particular device, the whole driver code is consists of some
modules. Among those one module already assigned a function to this pointer
"hard_start_xmit". I already tested its working well to transmit outgoing
data frame from AP.
My question is, how can I assign another function in different module. I
need to call this function when transmit data frame, but in practice, this
function will not send any data frame, e.g. wont use dev_queue_xmit.
You can assume, when something to transmit it will call two functions in
two modules of same driver
Any suggestions to do that please ?
regards,
/ Frank
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