FREQ_REG_INFO(9)                  Regulatory enforcement infrast                 FREQ_REG_INFO(9)



NAME
       freq_reg_info - get regulatory information for the given frequency

SYNOPSIS
       const struct ieee80211_reg_rule * freq_reg_info(struct wiphy * wiphy, u32 center_freq);

ARGUMENTS
       wiphy
           the wiphy for which we want to process this rule for

       center_freq
           Frequency in KHz for which we want regulatory information for

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.

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_freq's band. See freq_in_rule_band for our current definition of a band -- this is
       purely subjective and right now it's 802.11 specific.

AUTHOR
       Johannes Berg <johannes AT sipsolutions.net>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                          FREQ_REG_INFO(9)