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rt2x00: Fix HT40 operation in rt2800.

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Closer inspection of the legacy Ralink driver reveals that in case of HT40+
or HT40- we must adjust the frequency settings that we program to the device.
Implement the same adjustment in the rt2x00 code.

With this HT40 seems to work for all devices supported by rt2800pci and
rt2800usb.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
This commit is contained in:
Gertjan van Wingerde
2010-06-03 10:52:08 +02:00
committed by Ivo van Doorn
parent 532bc2d524
commit 06443e46c6
4 changed files with 46 additions and 8 deletions
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5
drivers/net/wireless/rt2x00/rt2800lib.c
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@@ -2531,11 +2531,8 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
else
spec->ht.ht_supported = false;
/*
* Don't set IEEE80211_HT_CAP_SUP_WIDTH_20_40 for now as it causes
* reception problems with HT40 capable 11n APs
*/
spec->ht.cap =
IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
IEEE80211_HT_CAP_GRN_FLD |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40 |