[Bugme-new] [Bug 33982] New: ath9k: regulatory: strange tx power limits
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Tue Apr 26 11:37:47 PDT 2011
https://bugzilla.kernel.org/show_bug.cgi?id=33982
Summary: ath9k: regulatory: strange tx power limits
Product: Networking
Version: 2.5
Kernel Version: 2.6.38
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Wireless
AssignedTo: networking_wireless at kernel-bugs.osdl.org
ReportedBy: r.schtz at t-online.de
Regression: Yes
I noticed that the tx power limits for my Atheros AR9285 are quite strange
since kernel 2.6.38, though the correct regulatory domain is set. Other
wireless adapters are working fine, so this seems to be a problem with the
Atheros drivers.
excerpt from "iw list":
Frequencies:
* 2412 MHz [1] (17.0 dBm)
* 2417 MHz [2] (17.0 dBm)
* 2422 MHz [3] (9.0 dBm)
* 2427 MHz [4] (13.0 dBm)
* 2432 MHz [5] (13.0 dBm)
* 2437 MHz [6] (13.0 dBm)
* 2442 MHz [7] (13.0 dBm)
* 2447 MHz [8] (13.0 dBm)
* 2452 MHz [9] (9.0 dBm)
* 2457 MHz [10] (14.0 dBm)
* 2462 MHz [11] (14.0 dBm)
* 2467 MHz [12] (17.0 dBm) (passive scanning)
* 2472 MHz [13] (17.0 dBm) (passive scanning)
* 2484 MHz [14] (disabled)
Normally 20 dBm tx power should by allowed for channel 1-13 regarding the
regulatory domain:
country DE:
(2400 - 2483 @ 40), (N/A, 20)
(5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
(5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
(5470 - 5725 @ 40), (N/A, 26), DFS
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