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authorStanislaw Gruszka <stf_xl@wp.pl>2011-06-19 19:47:39 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-06-22 16:09:44 -0400
commitbf4c02d5e772903be5bf8952bac730a2956d0619 (patch)
treef0042bb40eaedec5a38cb56522459ba9988af9b7 /drivers
parent7f503fc49f144bb509dbd33daf3426df3f176e6b (diff)
downloadblackbird-op-linux-bf4c02d5e772903be5bf8952bac730a2956d0619.tar.gz
blackbird-op-linux-bf4c02d5e772903be5bf8952bac730a2956d0619.zip
rt2x00: reset usb devices at probe
When module is reloaded, device may fail to work, with messages: [ 342.211926] phy40 -> rt2x00lib_rxdone_read_signal: Warning - Frame received with unrecognized signal, mode=0x0000, signal=0x0059, type=2. [ 342.314254] phy40 -> rt2x00lib_rxdone_read_signal: Warning - Frame received with unrecognized signal, mode=0x0000, signal=0x004a, type=2. [ 342.416458] phy40 -> rt2x00lib_rxdone: Warning - Wrong frame size 3183 max 2432. [ 342.518605] phy40 -> rt2x00lib_rxdone_read_signal: Warning - Frame received with unrecognized signal, mode=0x0000, signal=0x00c9, type=2. [ 342.620836] phy40 -> rt2x00lib_rxdone_read_signal: Warning - Frame received with unrecognized signal, mode=0x0000, signal=0x00ae, type=1. [ 342.723201] phy40 -> rt2x00lib_rxdone: Warning - Wrong frame size 0 max 2432. [ 342.825399] phy40 -> rt2x00lib_rxdone: Warning - Wrong frame size 0 max 2432. [ 342.927624] phy40 -> rt2x00lib_rxdone: Warning - Wrong frame size 0 max 2432. [ 343.029804] phy40 -> rt2x00lib_rxdone: Warning - Wrong frame size 2491 max 2432. [ 343.132008] phy40 -> rt2x00lib_rxdone: Warning - Wrong frame size 2576 max 2432. [ 343.234326] phy40 -> rt2x00lib_rxdone_read_signal: Warning - Frame received with unrecognized signal, mode=0x0000, signal=0x004c, type=1. [ 343.438723] phy40 -> rt2x00lib_rxdone_read_signal: Warning - Frame received with unrecognized signal, mode=0x0000, signal=0x00e6, type=1. Whereas replugging device make it functional. To solve that problem force reset device during probe. With patch messages are gone. Unfortunately device may sometimes still does not operate correctly after module reload (fail to receive data after associate), but such cases are rarer than without the patch. Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00usb.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 8f90f6268077..b6b4542c2460 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -802,6 +802,7 @@ int rt2x00usb_probe(struct usb_interface *usb_intf,
int retval;
usb_dev = usb_get_dev(usb_dev);
+ usb_reset_device(usb_dev);
hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
if (!hw) {
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