Hello, This was previously posted as a RFC[1] to linux-wireless. Following Larry Finger's suggestion[2] I'm resending it as a proposed patch. This patch is intended as a debugging aid for people working on the rtl8188eu driver. I started working on it because debug logs from rtl8188eu driver got me nowhere when I wanted to see what was "going in and out". It has reached a working state where you can use TShark/Wireshark to analyze the flow of 802.11 frames: modprobe r8188eu monitor_enable=1 ip link set mon0 up tshark -i mon0 I've been testing it against recent staging-next (6dd19f1), in managed mode, with hardware encryption, and only with CCMP (AES) cipher in use, but it should work with any. Performance implications? A throughput test ran with iperf for 20 minutes before and after the changes (with monitor inferace enabled and up) showed: before: 43.0 Mbits/sec after: 41.6 Mbits/sec [1] https://lkml.kernel.org/g/1441383439-27007-1-git-send-email-jsitnicki@xxxxxxxxx [2] https://github.com/lwfinger/rtl8188eu/issues/73#issuecomment-138588729 Jakub Sitnicki (1): staging: rtl8188eu: Introduce monitor interface for IEEE 802.11 frames drivers/staging/rtl8188eu/Makefile | 1 + drivers/staging/rtl8188eu/core/rtw_recv.c | 14 ++ drivers/staging/rtl8188eu/core/rtw_xmit.c | 4 + drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c | 4 + drivers/staging/rtl8188eu/include/drv_types.h | 2 + drivers/staging/rtl8188eu/include/mon.h | 36 +++++ drivers/staging/rtl8188eu/os_dep/mon.c | 194 +++++++++++++++++++++++++ drivers/staging/rtl8188eu/os_dep/os_intfs.c | 5 + drivers/staging/rtl8188eu/os_dep/usb_intf.c | 10 ++ 9 files changed, 270 insertions(+) create mode 100644 drivers/staging/rtl8188eu/include/mon.h create mode 100644 drivers/staging/rtl8188eu/os_dep/mon.c -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
