linux/drivers/net/wireless/zd1211rw
Tomas Vanek e81a7bd555 zd1211rw: firmware needs duration_id set to zero for non-pspoll frames
Some devices (iwl5100) cannot connect to zd1211rw based AP. It appears that
zd1211 firmware messes up duration_id field if it is not set to zero by driver.

Sniffing traffic shows that zd1211 is transmitting frames with duration_id bits
14 and 15 set and other bits appearing random. Setting duration_id at driver to
zero results zd1211 outputting sane duration_id. This means that firmware is
setting correct values itself and expects duration_id to be zero in first
place.

Looking at vendor driver shows that only PSPoll frames have duration_id set by
driver, for other frames duration_id left zero.

Original bug-report and attached patch at:
  http://sourceforge.net/mailarchive/message.php?msg_id=28759111

Reported-by: Tomas Vanek <Tomas.Vanek@fbl.cz>
[modified original patch from bug-report, added check for pspoll frame]
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-07 14:43:15 -05:00
..
Kconfig
Makefile
zd_chip.c zd1211rw: rename CR* macros to ZD_CR* 2011-04-07 15:34:13 -04:00
zd_chip.h zd1211rw: include mac80211.h from zd_chip.h 2011-06-20 15:16:32 -04:00
zd_def.h zd1211rw: fix invalid signal values from device 2011-06-22 16:09:45 -04:00
zd_mac.c zd1211rw: firmware needs duration_id set to zero for non-pspoll frames 2012-02-07 14:43:15 -05:00
zd_mac.h zd1211rw: only update HW beacon if new beacon differs from currect 2011-06-22 16:09:46 -04:00
zd_rf.c
zd_rf.h zd1211rw: rename CR* macros to ZD_CR* 2011-04-07 15:34:13 -04:00
zd_rf_al2230.c zd1211rw: rename CR* macros to ZD_CR* 2011-04-07 15:34:13 -04:00
zd_rf_al7230b.c zd1211rw: rename CR* macros to ZD_CR* 2011-04-07 15:34:13 -04:00
zd_rf_rf2959.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-04-12 16:18:44 -04:00
zd_rf_uw2453.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-04-12 16:18:44 -04:00
zd_usb.c drivers/net: Add module.h to drivers who were implicitly using it 2011-10-31 19:31:07 -04:00
zd_usb.h zd1211rw: handle lost read-reg interrupts 2011-06-22 16:09:46 -04:00