Nobody cares about this ? Should I report this as a bug to the LKML ? or elsewhere ? to ath9k_htc dev ? to crda dev ? Please. 2018-04-10 21:57 GMT+02:00 solsTiCe d'Hiver <solstice.dhiver@xxxxxxxxx>: > hi. > > I am trying to capture on 2 channels at the same time with 2 cards. > > One card is TP-Link TL-W722N v1 using ath9k_htc and the second one is > an Alfa AWUS051NH v2 using rt2800usb. > > I have tried this, first, on raspberry pi 0 W using archlinux-arm and > reproduced the issue on a netbook using archlinux x64 too using latest > kernel and drivers. (seems to happen on ubuntu 17.10 on dell laptop > too) > > So when the Alfa card is used alone using the default reg dom FR, one > can change to 112 channel for example (using iw dev wlan1 set channel > 112) > > But once the tp-link is plugged in, reg dom seems to become CN and one > can't change the alfa card to 112 channel. > > iw reg get output change from > global > country FR: DFS-ETSI > (2402 - 2482 @ 40), (N/A, 20), (N/A) > (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW > (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW > (5490 - 5710 @ 160), (N/A, 27), (0 ms), DFS > (57000 - 66000 @ 2160), (N/A, 40), (N/A) > to > global > country 98: DFS-UNSET > (2402 - 2482 @ 40), (N/A, 20), (N/A) > (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW > (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW > (57240 - 59400 @ 2160), (N/A, 28), (N/A) > (59400 - 63720 @ 2160), (N/A, 40), (N/A) > (63720 - 65880 @ 2160), (N/A, 28), (N/A) > > phy#2 > country CN: DFS-FCC > (2402 - 2482 @ 40), (N/A, 20), (N/A) > (5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW > (5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW > (5735 - 5835 @ 80), (N/A, 30), (N/A) > (57240 - 59400 @ 2160), (N/A, 28), (N/A) > (59400 - 63720 @ 2160), (N/A, 44), (N/A) > (63720 - 65880 @ 2160), (N/A, 28), (N/A) > > > and all the channels above 100 are marked as disabled in iw list > output (after the plug not before) for the alfa card > > It is as if the TL-WN722N has CN reg dom hard-coded and that switches > it globally to CN too ??? > > Is this a bug in ath9k_htc ? a bug with the TL-WN722N card ??
