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ath9k Antenna Diversity
This page documents how antenna diversity is supported by ath9k.
Contents
What is Antenna Diversity ?
Adrian Chadd's excellent, detailed notes.
Supported cards
WLAN Only
- HB95
- HB125
WLAN and BT
WB195
WLAN |
Bluetooth |
Vendor ID |
Device ID |
Subvendor ID |
Subdevice ID |
AR9285 |
AR3011 |
0x168c |
0x002b |
0x1a3b |
0x2c37 |
WB225
WLAN |
Bluetooth |
Vendor ID |
Device ID |
Subvendor ID |
Subdevice ID |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x1a3b |
0x2086 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x1a3b |
0x1237 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x1a3b |
0x2126 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x1a3b |
0x2152 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x105b |
0xe075 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x168c |
0x3119 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x168c |
0x3122 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x185f |
0x3119 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x185f |
0x3027 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0x4105 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0x4106 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0x410d |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0x410e |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0x410f |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0xc706 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0xc680 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x144d |
0xc708 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x17aa |
0x3218 |
AR9485 |
AR3012 |
0x168c |
0x0032 |
0x17aa |
0x3219 |
WB335
Enable WLAN/BT RX Antenna Diversity
This feature is available only on WB225 and WB335, not WB195. To enable WLAN RX diversity using the BT antenna, use the module parameter bt_antenna_diversity. The Bluetooth interface has to be disabled when this feature is enabled in ath9k.
modprobe ath9k bt_antenna_diversity=1
This can also be turned on/off using the debugfs file bt_ant_diversity.
echo 1 > /sys/kernel/debug/ieee80211/phy0/ath9k/bt_ant_diversity echo 0 > /sys/kernel/debug/ieee80211/phy0/ath9k/bt_ant_diversity