Search Linux Wireless

Re: [RFC v2] cfg80211: VHT regulatory

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 09/07/2012 05:40 PM, Johannes Berg wrote:

We don't have to do any calculation in kernel though as far as I can
tell? Maybe we do need the channel, but I think in terms of
*specifying*, in particular in the nl80211 and cfg80211 APIs, we should
stick to the standard if we're going to change it now.


struct ieee80211_channel_config {
        enum ieee80211_chan_width chan_width;
        u16 center_freq1;
        u16 center_freq2;
        u16 prim_chan_freq;
};

If we stick to standard, all u16 become u8, as their values range is from 1-200. But these numbers have to be converted to freqKHz in reg_chan_use_permitted() to find fits in reg rule or not?
Is that ok?

If so I have to use below formulas to get freqKHz.

Channel center frequency [MHz]
= Channel starting frequency + 5 x dot11CurrentChannelCenterFrequencyIndex

Primary 20 MHz channel center frequency [MHz]
= Channel starting frequency + 5  dot11CurrentPrimaryChannel

Thanks,
Mahesh
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux