freq_reg_info - get regulatory information for the given frequency
2. SYNOPSIS ▲
const struct ieee80211_reg_rule * freq_reg_info(struct wiphy * wiphy , u32 center_freq );
3. ARGUMENTS ▲
the wiphy for which we want to process this rule for
Frequency in KHz for which we want regulatory information for
4. DESCRIPTION ▲
Use this function to get the regulatory rule for a specific frequency on a given wireless device. If the device has a specific regulatory domain it wants to follow we respect that unless a country IE has been received and processed already.
5. RETURN ▲
A valid pointer, or, when an error occurs, for example if no rule can be found, the return value is encoded using ERR_PTR. Use IS_ERR to check and PTR_ERR to obtain the numeric return value. The numeric return value will be -ERANGE if we determine the given center_freq does not even have a regulatory rule for a frequency range in the center_freqAqs band. See freq_in_rule_band for our current definition of a band -- this is purely subjective and right now itAqs 802.11 specific.
6. AUTHOR ▲
Johannes Berg <
7. COPYRIGHT ▲