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I have a problem on setting txpower in the kernel module, and I wish
to be personally CC'ed the answers/comments posted to the list in response.
It is the first time for me to make a kernel module in order to
manage txpower.I am using Vine Linux 2.4.18-0v13 and wireless LAN card is
CISCO AIRONET 350 whose txpower can be change in 3 levels. Following is my
problem in the kernel programming.
With CISCO LAN card, I can change the txpower by the command: iwconfig,
however, in my kernel programming, I am using do_ioctl() intending to set
txpower. There are two aspects on my problem. One aspect is that when I set
wrq.u.txpower.value which I am intended to change, and do the do_ioctl().
After complying the kernel module, the wireless LAN card just turned off
its txpower but the value is not changed. Then when I set
wrq.u.txpower.diabled trying to keep txpower on, I got the error message (I
am using 兎rrno | |||||||||
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