On 2013-05-09 9:46 PM, Simon Wunderlich wrote: > Hello Felix, > > On Thu, May 09, 2013 at 08:31:36PM +0200, Felix Fietkau wrote: >> On 2013-05-09 8:10 PM, a@pandem0nium wrote: >> > From: Simon Wunderlich <siwu@xxxxxxxxxxxxxxxxxx> >> > >> > This is a collection of minor fixes: >> > * don't allow HT IEs in IBSS for 5/10 MHz >> > * don't allow HT IEs in Mesh for 5/10 MHz >> > * consider 5 and 10 MHz channels when downgrading >> > * don't try HT rates for 5 and 10 MHz channels when selecting rates >> Why? HT rates work with 5/10 MHz just fine. > > Hm, to be honest I did not try - IEEE 802.11-2012 only mentions 5 and > 10 MHz channels in section 18 (OFDM PHY) according with timing and other > parameters, but nothing like this (as far as I see) is mentioned in > Section 20 (High Throughput PHY). > > On the other hand, it appears that AR9xxx based chipsets also support > 2.4 GHz rates (DSSS, ERP-OFDM), so I can imagine also HT rates can > be supported as well. > > The question is, how would we handle that? Allow HT IEs also for 5 and > 10 MHz, and behave like it would be a 20 MHz channel? Yes, I had 5/10 MHz running that way with a debugfs hack just fine. > Are there any > other WiFi chipsets which support 5/10 MHz, should we consider them > (maybe they don't support that)? No idea. - Felix -- 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
