On 28 Mar, 2014, at 15:02 , Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote: > On 03/28/2014 07:49 AM, Bruno Antunes wrote: >> >> On 28 Mar, 2014, at 14:37 , Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote: >> >>> On 03/28/2014 07:29 AM, Bruno Antunes wrote: >>>> Hi Ben, >>>> I think you are missing some parameters >>>> >>>> On 28 Mar, 2014, at 14:18 , Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote: >>>> >>>>> On 03/28/2014 12:27 AM, Sedat Dilek wrote: >>>>>> On Fri, Mar 28, 2014 at 5:21 AM, Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote: >>>>>>> Any idea why this isn't working? >>>>>>> >>>>>>> Kernel is 3.9.11+, driver is ath9k. >>>>>>> >>>>>>> [root@ct523-9292 lanforge]# iwconfig wlan0 >>>>>>> wlan0 IEEE 802.11abgn ESSID:off/any >>>>>>> Mode:Managed Access Point: Not-Associated Tx-Power=16 dBm >>>>>>> Retry short limit:7 RTS thr:off Fragment thr:off >>>>>>> Encryption key:off >>>>>>> Power Management:off >>>>>>> >>>>>>> [root@ct523-9292 lanforge]# iwconfig wlan0 txpower 10 >>>> >>>> iw dev <devname> set txpower <auto|fixed|limit> [<tx power in mBm>] >>>> >>>> It should be something like: >>>> >>>> iw dev wlan0 set txpower fixed 1000 >>> >>> Ok, that doesn't give an error, but 'iwconfig' still shows 16 dBm, >>> and I don't see any way to get 'iw' to print out the power itself? >>> >>> So, not sure if it is really working or not. >> It works , at least on iw 3.10. >> >> If you have debug enabled you can see the value changing. > > Just for posterity's sake, it seems you should really be looking > at user_power_level: > > [root@ct523-9292 lanforge]# iw dev wlan0 set txpower fixed 1000 > [root@ct523-9292 lanforge]# cat /debug/ieee80211/wiphy0/netdev\:wlan0/txpower > 0 > [root@ct523-9292 lanforge]# > > [root@ct523-9292 lanforge]# cat /debug/ieee80211/wiphy0/netdev\:wlan0/user_power_level > 10 > Not on all systems... root@RSPro2:/etc/config# iw dev adhoc0 set txpower fixed 700 root@RSPro2:/etc/config# cat /sys/kernel/debug/ieee80211/phy0/netdev\:adhoc0/txpower 7 root@RSPro2:/etc/config# cat /sys/kernel/debug/ieee80211/phy0/netdev\:adhoc0/user_power_level 7 Bruno > Thanks, > Ben > >> >> On a openwrt system >> >> root@RSPro2:/lib/wifi# iw dev adhoc0 set txpower fixed 900 >> root@RSPro2:/lib/wifi# cat /sys/kernel/debug/ieee80211/phy0/netdev:adhoc0/txpower >> 9 >> root@RSPro2:/lib/wifi# iw dev adhoc0 set txpower fixed 1500 >> root@RSPro2:/lib/wifi# cat /sys/kernel/debug/ieee80211/phy0/netdev:adhoc0/txpower >> 15 >> >> And the received power changes on the station confirming that is making effect. >> >> Bruno >> >>> >>> Thanks, >>> Ben >>> >>> >>> -- >>> Ben Greear <greearb@xxxxxxxxxxxxxxx> >>> Candela Technologies Inc http://www.candelatech.com >>> > > > -- > Ben Greear <greearb@xxxxxxxxxxxxxxx> > Candela Technologies Inc http://www.candelatech.com > -- 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
