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authorHelmut Schaa <helmut.schaa@googlemail.com>2010-04-23 15:05:29 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-04-26 14:21:22 -0400
commit2caaa5d36ee210919bd0ecc7b2e6648171544e95 (patch)
tree2f5cb860f6f9acd049a068d741f744efd6ebaff8
parentd8f996f6ff7e6eab4c7b96e908ba789533595e7d (diff)
rt2x00: rt2800lib: disable HT40 for now as it causes reception problems
Disable HT40 support for now as it causes rx problems with HT40 capable 11n APs (when mac80211 enables HT40, rx is completely disfunctional). Once the rt2800 HT code is capable of using HT40 we should enable the flag again. I only tested this patch with a rt305x SoC device, nevertheless the patch disables HT40 also on PCI and USB rt2800 devices. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 638600092f1..867b6527a1f 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2317,8 +2317,11 @@ 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 |