I have applied more restrictive rule for (5490-5590) and allowed 80Mhz for (5650 - 5730). The patch has been uploaded in another thread. http://lists.infradead.org/pipermail/wireless-regdb/2015-July/000858.html Thanks. On Mon, Jul 6, 2015 at 7:40 AM, Zefir Kurtisi <zefir.kurtisi at neratec.com> wrote: > On 07/06/2015 03:27 PM, Seth Forshee wrote: >> On Fri, Jul 03, 2015 at 05:01:20PM +0200, Zefir Kurtisi wrote: >>> On 07/03/2015 04:20 PM, Wei Zhong wrote: >>> [...] >>> From your other post: >>>>> > >>>>> > - (5490 - 5730 @ 160), (24), DFS >>>>> > + (5490 - 5590 @ 80), (24), DFS >>>>> >>>>> I agree. 5590 is more strict than 5600. >>>>> >>>>> >>>>> On a second thought, 5590 implies channel 116 can't have 40MHz. I think that is >>>>> still allowed per regulation. >>>>> >>>>> >>> >>> No, channel 116 is not usable for HT40 if weather radar channels are disabled, >>> since it can only be combined with channel 120 and that one partially falls into >>> the restricted range. >> >> It's not necessary to restrict the band down to 5590 or break out the >> rule for channel 116 separately, the software is smart enough to work >> out what's allowed based on the original rule Wei supplied for 5490-5600 >> MHz. In fact that rule exactly matches what we used to have in db.txt >> for the US prior to the TDWR restrictions being lifted. >> > > Yes, the SW is smart and sane enough to extract the limitations even if they are > defined less restrictive than required. Which raises the general question of what > needs to be defined as rule and what can be relied on to be handled correctly by > the SW. > > Example: why do we need to bother about the max-bw parameter for a rule at all? We > know there is no 160MHz channel within 5490 and 5600, as does the SW. If we wrote > (5490 - 5600 @ 160) instead of (5490 - 5600 @ 80), nothing would change. > > To me it sounds not fully consistent to explicitly limit max-bw while relying on > SW to sanitize frequency ranges. Not that it really matters in practice, but it > has a potential to simplify the rules (i.e. provide max-bw parameter only if the > according country defines restrictions and leave SW to handle it otherwise). > > > Cheers, > Zefir
