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/freebsd-11-stable/sys/dev/ath/
H A Dif_ath.cdiff 231369 Fri Feb 10 08:14:59 MST 2012 adrian Add in a new driver feature to allow the TX and RX chainmask to be
overridden at attach time.

Some 802.11n NICs may only have one physical antenna connected.
The radios will be very upset if you try enabling radios which aren't
connected to antennas.

This allows hints to override the TX and RX chainmask.

These hints are:

hint.ath.X.rx_chainmask
hint.ath.X.tx_chainmask

They can be set at either boot time or in kenv before the module is loaded.

This and the previous HAL commit were sponsored in late 2011 by Hobnob, Inc.

Sponsored by: Hobnob, Inc.

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