FREQ_REG_INFO(9) Regulatory enforcement infrast FREQ_REG_INFO(9)NAMEfreq_reg_info - get regulatory information for the given frequency
SYNOPSIS
int freq_reg_info(struct wiphy * wiphy, u32 center_freq,
u32 desired_bw_khz,
const struct ieee80211_reg_rule ** reg_rule);
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
desired_bw_khz
the desired max bandwidth you want to use per channel. Note that
this is still 20 MHz if you want to use HT40 as HT40 makes use of
two channels for its 40 MHz width bandwidth. If set to 0 we'll
assume you want the standard 20 MHz.
reg_rule
the regulatory rule which we have for this frequency
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.
Returns 0 if it was able to find a valid regulatory rule which does
apply to the given center_freq otherwise it returns non-zero. It will
also return -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 its 802.11 specific.
AUTHOR
Johannes Berg <johannes@sipsolutions.net>
Author.
COPYRIGHTKernel Hackers Manual 3.8. June 2014 FREQ_REG_INFO(9)