Search Linux Wireless

Re: [PATCH v2] ath9k: interpret requested txpower in EIRP domain

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Zefir Kurtisi <zefir.kurtisi@xxxxxxxxxxx> writes:

> Tx power limitations at upper layers are interpreted in
> the EIRP domain. When the user requests a given maximum
> txpower, e.g. with: 'iw phy0 set txpower fixed 1500',
> he expects the EIRP to be at or below 15dBm.
>
> In ath9k_hw_apply_txpower(), the interpretation is
> different: the antenna-gain is capped against the
> current txpower limit in the regulatory, but not
> against the user set value. It ensures that the
> resulting EIRP is below the limit defined by the
> active countrycode, but not below the value the
> user requested.
>
> In a scenario like e.g.
>  a) antenna_gain=6
>  b) countrycode limits to eirp=18
>  c) user set txpower=15
> this will cause a setting for AR_PHY_POWER_TX_RATE
> regs resulting in an EIRP > 15.
>
> This patch ensures that antenna-gain is considered
> whenever the txpower limit is adjusted and with that
> the user set limits are kept.
>
> Signed-off-by: Zefir Kurtisi <zefir.kurtisi@xxxxxxxxxxx>

Applied, thanks.

-- 
Kalle Valo
--
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



[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux